2 #------------------------------------------------------------------------------
3 # $File: msdos,v 1.137 2020/03/20 17:20:19 christos Exp $
4 # msdos: file(1) magic for MS-DOS files
7 # .BAT files (Daniel Quinlan, quinlan@yggdrasil.com)
8 # updated by Joerg Jenderek at Oct 2008,Apr 2011
10 >1 string/cW \ echo\ off DOS batch file text
11 !:mime text/x-msdos-batch
13 >1 string/cW echo\ off DOS batch file text
14 !:mime text/x-msdos-batch
16 >1 string/cW rem DOS batch file text
17 !:mime text/x-msdos-batch
19 >1 string/cW set\ DOS batch file text
20 !:mime text/x-msdos-batch
24 # OS/2 batch files are REXX. the second regex is a bit generic, oh well
25 # the matched commands seem to be common in REXX and uncommon elsewhere
26 100 search/0xffff rxfuncadd
27 >100 regex/c =^[\ \t]{0,10}call[\ \t]{1,10}rxfunc OS/2 REXX batch file text
29 >100 regex/c =^[\ \t]{0,10}say\ ['"] OS/2 REXX batch file text
31 # updated by Joerg Jenderek at Oct 2015
32 # https://de.wikipedia.org/wiki/Common_Object_File_Format
33 # http://www.delorie.com/djgpp/doc/coff/filhdr.html
34 # ./intel already labeled COFF type 0x14c=0514 as "80386 COFF executable"
35 #0 leshort 0x14c MS Windows COFF Intel 80386 object file
37 0 leshort 0x166 MS Windows COFF MIPS R4000 object file
39 0 leshort 0x184 MS Windows COFF Alpha object file
41 0 leshort 0x268 MS Windows COFF Motorola 68000 object file
43 0 leshort 0x1f0 MS Windows COFF PowerPC object file
45 0 leshort 0x290 MS Windows COFF PA-RISC object file
48 # Tests for various EXE types.
50 # Many of the compressed formats were extraced from IDARC 1.23 source code.
53 # All non-DOS EXE extensions have the relocation table more than 0x40 bytes into the file.
54 >0x18 leshort <0x40 MS-DOS executable
55 !:mime application/x-dosexec
56 # Windows and later versions of DOS will allow .EXEs to be named with a .COM
57 # extension, mostly for compatibility's sake.
59 # These traditional tests usually work but not always. When test quality support is
60 # implemented these can be turned on.
61 #>>0x18 leshort 0x1c (Borland compiler)
62 #>>0x18 leshort 0x1e (MS compiler)
65 >(0x3c.l) string PE\0\0 PE
66 !:mime application/x-dosexec
67 >>(0x3c.l+24) leshort 0x010b \b32 executable
68 >>(0x3c.l+24) leshort 0x020b \b32+ executable
69 >>(0x3c.l+24) leshort 0x0107 ROM image
70 >>(0x3c.l+24) default x Unknown PE signature
72 >>(0x3c.l+22) leshort&0x2000 >0 (DLL)
73 >>(0x3c.l+92) leshort 1
74 # Native PEs include ntoskrnl.exe, hal.dll, smss.exe, autochk.exe, and all the
75 # drivers in Windows/System32/drivers/*.sys.
76 >>>(0x3c.l+22) leshort&0x2000 >0 (native)
78 >>>(0x3c.l+22) leshort&0x2000 0 (native)
80 >>(0x3c.l+92) leshort 2
81 >>>(0x3c.l+22) leshort&0x2000 >0 (GUI)
82 # These could probably be at least partially distinguished from one another by
83 # looking for specific exported functions.
84 # CPL: Control Panel item
86 # OCX: OLE/ActiveX control
87 # ACM: Audio compression manager codec
88 # AX: DirectShow source filter
89 # IME: Input method editor
90 !:ext dll/cpl/tlb/ocx/acm/ax/ime
91 >>>(0x3c.l+22) leshort&0x2000 0 (GUI)
92 # Screen savers typically include code from the scrnsave.lib static library, but
93 # that's not guaranteed.
95 >>(0x3c.l+92) leshort 3
96 >>>(0x3c.l+22) leshort&0x2000 >0 (console)
97 !:ext dll/cpl/tlb/ocx/acm/ax/ime
98 >>>(0x3c.l+22) leshort&0x2000 0 (console)
100 # https://docs.microsoft.com/en-us/windows/win32/debug/pe-format
101 >>(0x3c.l+92) leshort 7 (POSIX)
102 >>(0x3c.l+92) leshort 9 (Windows CE)
103 >>(0x3c.l+92) leshort 10 (EFI application)
104 >>(0x3c.l+92) leshort 11 (EFI boot service driver)
105 >>(0x3c.l+92) leshort 12 (EFI runtime driver)
106 >>(0x3c.l+92) leshort 13 (EFI ROM)
107 >>(0x3c.l+92) leshort 14 (XBOX)
108 >>(0x3c.l+92) leshort 15 (Windows boot application)
109 >>(0x3c.l+92) default x (Unknown subsystem
110 >>>&0 leshort x 0x%x)
111 >>(0x3c.l+4) leshort 0x14c Intel 80386
112 >>(0x3c.l+4) leshort 0x166 MIPS R4000
113 >>(0x3c.l+4) leshort 0x168 MIPS R10000
114 >>(0x3c.l+4) leshort 0x184 Alpha
115 >>(0x3c.l+4) leshort 0x1a2 Hitachi SH3
116 >>(0x3c.l+4) leshort 0x1a3 Hitachi SH3 DSP
117 >>(0x3c.l+4) leshort 0x1a8 Hitachi SH5
118 >>(0x3c.l+4) leshort 0x169 MIPS WCE v2
119 >>(0x3c.l+4) leshort 0x1a6 Hitachi SH4
120 >>(0x3c.l+4) leshort 0x1c0 ARM
121 >>(0x3c.l+4) leshort 0x1c2 ARM Thumb
122 >>(0x3c.l+4) leshort 0x1c4 ARMv7 Thumb
123 >>(0x3c.l+4) leshort 0x1d3 Matsushita AM33
124 >>(0x3c.l+4) leshort 0x1f0 PowerPC
125 >>(0x3c.l+4) leshort 0x1f1 PowerPC with FPU
126 >>(0x3c.l+4) leshort 0x1f2 PowerPC (big-endian)
127 >>(0x3c.l+4) leshort 0x200 Intel Itanium
128 >>(0x3c.l+4) leshort 0x266 MIPS16
129 >>(0x3c.l+4) leshort 0x268 Motorola 68000
130 >>(0x3c.l+4) leshort 0x290 PA-RISC
131 >>(0x3c.l+4) leshort 0x366 MIPSIV
132 >>(0x3c.l+4) leshort 0x466 MIPS16 with FPU
133 >>(0x3c.l+4) leshort 0xebc EFI byte code
134 >>(0x3c.l+4) leshort 0x5032 RISC-V 32-bit
135 >>(0x3c.l+4) leshort 0x5064 RISC-V 64-bit
136 >>(0x3c.l+4) leshort 0x5128 RISC-V 128-bit
137 >>(0x3c.l+4) leshort 0x9041 Mitsubishi M32R
138 >>(0x3c.l+4) leshort 0x8664 x86-64
139 >>(0x3c.l+4) leshort 0xaa64 Aarch64
140 >>(0x3c.l+4) leshort 0xc0ee MSIL
141 >>(0x3c.l+4) default x Unknown processor type
143 >>(0x3c.l+22) leshort&0x0200 >0 (stripped to external PDB)
144 >>(0x3c.l+22) leshort&0x1000 >0 system file
145 >>(0x3c.l+24) leshort 0x010b
146 >>>(0x3c.l+232) lelong >0 Mono/.Net assembly
147 >>(0x3c.l+24) leshort 0x020b
148 >>>(0x3c.l+248) lelong >0 Mono/.Net assembly
150 # hooray, there's a DOS extender using the PE format, with a valid PE
151 # executable inside (which just prints a message and exits if run in win)
152 >>(8.s*16) string 32STUB \b, 32rtm DOS extender
153 >>(8.s*16) string !32STUB \b, for MS Windows
154 >>(0x3c.l+0xf8) string UPX0 \b, UPX compressed
155 >>(0x3c.l+0xf8) search/0x140 PEC2 \b, PECompact2 compressed
156 >>(0x3c.l+0xf8) search/0x140 UPX2
157 >>>(&0x10.l+(-4)) string PK\3\4 \b, ZIP self-extracting archive (Info-Zip)
158 >>(0x3c.l+0xf8) search/0x140 .idata
159 >>>(&0xe.l+(-4)) string PK\3\4 \b, ZIP self-extracting archive (Info-Zip)
160 >>>(&0xe.l+(-4)) string ZZ0 \b, ZZip self-extracting archive
161 >>>(&0xe.l+(-4)) string ZZ1 \b, ZZip self-extracting archive
162 >>(0x3c.l+0xf8) search/0x140 .rsrc
163 >>>(&0x0f.l+(-4)) string a\\\4\5 \b, WinHKI self-extracting archive
164 >>>(&0x0f.l+(-4)) string Rar! \b, RAR self-extracting archive
165 >>>(&0x0f.l+(-4)) search/0x3000 MSCF \b, InstallShield self-extracting archive
166 >>>(&0x0f.l+(-4)) search/32 Nullsoft \b, Nullsoft Installer self-extracting archive
167 >>(0x3c.l+0xf8) search/0x140 .data
168 >>>(&0x0f.l) string WEXTRACT \b, MS CAB-Installer self-extracting archive
169 >>(0x3c.l+0xf8) search/0x140 .petite\0 \b, Petite compressed
170 >>>(0x3c.l+0xf7) byte x
171 >>>>(&0x104.l+(-4)) string =!sfx! \b, ACE self-extracting archive
172 >>(0x3c.l+0xf8) search/0x140 .WISE \b, WISE installer self-extracting archive
173 >>(0x3c.l+0xf8) search/0x140 .dz\0\0\0 \b, Dzip self-extracting archive
174 >>&(0x3c.l+0xf8) search/0x100 _winzip_ \b, ZIP self-extracting archive (WinZip)
175 >>&(0x3c.l+0xf8) search/0x100 SharedD \b, Microsoft Installer self-extracting archive
176 >>0x30 string Inno \b, InnoSetup self-extracting archive
178 # If the relocation table is 0x40 or more bytes into the file, it's definitely
182 # Hmm, not a PE but the relocation table is too high for a traditional DOS exe,
183 # must be one of the unusual subformats.
184 >>(0x3c.l) string !PE\0\0 MS-DOS executable
185 !:mime application/x-dosexec
187 >>(0x3c.l) string NE \b, NE
188 !:mime application/x-dosexec
189 >>>(0x3c.l+0x36) byte 1 for OS/2 1.x
190 >>>(0x3c.l+0x36) byte 2 for MS Windows 3.x
191 >>>(0x3c.l+0x36) byte 3 for MS-DOS
192 >>>(0x3c.l+0x36) byte 4 for Windows 386
193 >>>(0x3c.l+0x36) byte 5 for Borland Operating System Services
194 >>>(0x3c.l+0x36) default x
195 >>>>(0x3c.l+0x36) byte x (unknown OS %x)
196 >>>(0x3c.l+0x36) byte 0x81 for MS-DOS, Phar Lap DOS extender
197 >>>(0x3c.l+0x0c) leshort&0x8000 0x8000 (DLL or font)
199 # 3GR: Grabber device driver
200 # CPL: Control Panel Item
201 # VBX: Visual Basic Extension
203 # FOT: Font resource file
204 !:ext dll/drv/3gr/cpl/vbx/fon/fot
205 >>>(0x3c.l+0x0c) leshort&0x8000 0 (EXE)
207 >>>&(&0x24.s-1) string ARJSFX \b, ARJ self-extracting archive
208 >>>(0x3c.l+0x70) search/0x80 WinZip(R)\ Self-Extractor \b, ZIP self-extracting archive (WinZip)
210 >>(0x3c.l) string LX\0\0 \b, LX
211 !:mime application/x-dosexec
212 >>>(0x3c.l+0x0a) leshort <1 (unknown OS)
213 >>>(0x3c.l+0x0a) leshort 1 for OS/2
214 >>>(0x3c.l+0x0a) leshort 2 for MS Windows
215 >>>(0x3c.l+0x0a) leshort 3 for DOS
216 >>>(0x3c.l+0x0a) leshort >3 (unknown OS)
217 >>>(0x3c.l+0x10) lelong&0x28000 =0x8000 (DLL)
218 >>>(0x3c.l+0x10) lelong&0x20000 >0 (device driver)
219 >>>(0x3c.l+0x10) lelong&0x300 0x300 (GUI)
220 >>>(0x3c.l+0x10) lelong&0x28300 <0x300 (console)
221 >>>(0x3c.l+0x08) leshort 1 i80286
222 >>>(0x3c.l+0x08) leshort 2 i80386
223 >>>(0x3c.l+0x08) leshort 3 i80486
224 >>>(8.s*16) string emx \b, emx
226 >>>&(&0x54.l-3) string arjsfx \b, ARJ self-extracting archive
228 # MS Windows system file, supposedly a collection of LE executables
229 >>(0x3c.l) string W3 \b, W3 for MS Windows
230 !:mime application/x-dosexec
232 >>(0x3c.l) string LE\0\0 \b, LE executable
233 !:mime application/x-dosexec
234 >>>(0x3c.l+0x0a) leshort 1
235 # some DOS extenders use LE files with OS/2 header
236 >>>>0x240 search/0x100 DOS/4G for MS-DOS, DOS4GW DOS extender
237 >>>>0x240 search/0x200 WATCOM\ C/C++ for MS-DOS, DOS4GW DOS extender
238 >>>>0x440 search/0x100 CauseWay\ DOS\ Extender for MS-DOS, CauseWay DOS extender
239 >>>>0x40 search/0x40 PMODE/W for MS-DOS, PMODE/W DOS extender
240 >>>>0x40 search/0x40 STUB/32A for MS-DOS, DOS/32A DOS extender (stub)
241 >>>>0x40 search/0x80 STUB/32C for MS-DOS, DOS/32A DOS extender (configurable stub)
242 >>>>0x40 search/0x80 DOS/32A for MS-DOS, DOS/32A DOS extender (embedded)
243 # this is a wild guess; hopefully it is a specific signature
244 >>>>&0x24 lelong <0x50
245 >>>>>(&0x4c.l) string \xfc\xb8WATCOM
246 >>>>>>&0 search/8 3\xdbf\xb9 \b, 32Lite compressed
247 # another wild guess: if real OS/2 LE executables exist, they probably have higher start EIP
248 #>>>>(0x3c.l+0x1c) lelong >0x10000 for OS/2
249 # fails with DOS-Extenders.
250 >>>(0x3c.l+0x0a) leshort 2 for MS Windows
251 >>>(0x3c.l+0x0a) leshort 3 for DOS
252 >>>(0x3c.l+0x0a) leshort 4 for MS Windows (VxD)
253 # VXD: VxD for Windows 95/98/Me
254 # 386: VxD for Windows 2.10, 3.0, 3.1x
256 # MPD: Miniport driver (?)
257 !:ext vxd/386/pdr/mpd
258 >>>(&0x7c.l+0x26) string UPX \b, UPX compressed
259 >>>&(&0x54.l-3) string UNACE \b, ACE self-extracting archive
261 # looks like ASCII, probably some embedded copyright message.
262 # and definitely not NE/LE/LX/PE
263 >>0x3c lelong >0x20000000
264 >>>(4.s*512) leshort !0x014c \b, MZ for MS-DOS
265 !:mime application/x-dosexec
267 # header data too small for extended executable
270 >>>(4.s*512) leshort !0x014c
272 >>>>&(2.s-514) string !LE
273 >>>>>&-2 string !BW \b, MZ for MS-DOS
274 !:mime application/x-dosexec
275 >>>>&(2.s-514) string LE \b, LE
276 >>>>>0x240 search/0x100 DOS/4G for MS-DOS, DOS4GW DOS extender
277 # educated guess since indirection is still not capable enough for complex offset
278 # calculations (next embedded executable would be at &(&2*512+&0-2)
279 # I suspect there are only LE executables in these multi-exe files
280 >>>>&(2.s-514) string BW
281 >>>>>0x240 search/0x100 DOS/4G \b, LE for MS-DOS, DOS4GW DOS extender (embedded)
282 >>>>>0x240 search/0x100 !DOS/4G \b, BW collection for MS-DOS
284 # This sequence skips to the first COFF segment, usually .text
285 >(4.s*512) leshort 0x014c \b, COFF
286 !:mime application/x-dosexec
287 >>(8.s*16) string go32stub for MS-DOS, DJGPP go32 DOS extender
288 >>(8.s*16) string emx
289 >>>&1 string x for DOS, Win or OS/2, emx %s
290 >>&(&0x42.l-3) byte x
291 >>>&0x26 string UPX \b, UPX compressed
292 # and yet another guess: small .text, and after large .data is unusal, could be 32lite
293 >>&0x2c search/0xa0 .text
294 >>>&0x0b lelong <0x2000
295 >>>>&0 lelong >0x6000 \b, 32lite compressed
297 >(8.s*16) string $WdX \b, WDos/X DOS extender
299 # By now an executable type should have been printed out. The executable
300 # may be a self-uncompressing archive, so look for evidence of that and
303 # Some signatures below from Greg Roelofs, newt@uchicago.edu.
305 >0x35 string \x8e\xc0\xb9\x08\x00\xf3\xa5\x4a\x75\xeb\x8e\xc3\x8e\xd8\x33\xff\xbe\x30\x00\x05 \b, aPack compressed
306 >0xe7 string LH/2\ Self-Extract \b, %s
307 >0x1c string UC2X \b, UCEXE compressed
308 >0x1c string WWP\ \b, WWPACK compressed
309 >0x1c string RJSX \b, ARJ self-extracting archive
310 >0x1c string diet \b, diet compressed
311 >0x1c string LZ09 \b, LZEXE v0.90 compressed
312 >0x1c string LZ91 \b, LZEXE v0.91 compressed
313 >0x1c string tz \b, TinyProg compressed
314 >0x1e string Copyright\ 1989-1990\ PKWARE\ Inc. Self-extracting PKZIP archive
315 !:mime application/zip
316 # Yes, this really is "Copr", not "Corp."
317 >0x1e string PKLITE\ Copr. Self-extracting PKZIP archive
318 !:mime application/zip
319 # winarj stores a message in the stub instead of the sig in the MZ header
320 >0x20 search/0xe0 aRJsfX \b, ARJ self-extracting archive
322 >>0x23 string 2 \b, AIN 2.x compressed
323 >>0x23 string <2 \b, AIN 1.x compressed
324 >>0x23 string >2 \b, AIN 1.x compressed
325 >0x24 string LHa's\ SFX \b, LHa self-extracting archive
326 !:mime application/x-lha
327 >0x24 string LHA's\ SFX \b, LHa self-extracting archive
328 !:mime application/x-lha
329 >0x24 string \ $ARX \b, ARX self-extracting archive
330 >0x24 string \ $LHarc \b, LHarc self-extracting archive
331 >0x20 string SFX\ by\ LARC \b, LARC self-extracting archive
332 >0x40 string aPKG \b, aPackage self-extracting archive
333 >0x64 string W\ Collis\0\0 \b, Compack compressed
334 >0x7a string Windows\ self-extracting\ ZIP \b, ZIP self-extracting archive
335 >>&0xf4 search/0x140 \x0\x40\x1\x0
336 >>>(&0.l+(4)) string MSCF \b, WinHKI CAB self-extracting archive
337 >1638 string -lh5- \b, LHa self-extracting archive v2.13S
338 >0x17888 string Rar! \b, RAR self-extracting archive
340 # Skip to the end of the EXE. This will usually work fine in the PE case
341 # because the MZ image is hardcoded into the toolchain and almost certainly
342 # won't match any of these signatures.
345 >>>&0 string PK\3\4 \b, ZIP self-extracting archive
346 >>>&0 string Rar! \b, RAR self-extracting archive
347 >>>&0 string =!\x11 \b, AIN 2.x self-extracting archive
348 >>>&0 string =!\x12 \b, AIN 2.x self-extracting archive
349 >>>&0 string =!\x17 \b, AIN 1.x self-extracting archive
350 >>>&0 string =!\x18 \b, AIN 1.x self-extracting archive
351 >>>&7 search/400 **ACE** \b, ACE self-extracting archive
352 >>>&0 search/0x480 UC2SFX\ Header \b, UC2 self-extracting archive
354 # a few unknown ZIP sfxes, no idea if they are needed or if they are
355 # already captured by the generic patterns above
356 >(8.s*16) search/0x20 PKSFX \b, ZIP self-extracting archive (PKZIP)
357 # TODO: how to add this? >FileSize-34 string Windows\ Self-Installing\ Executable \b, ZIP self-extracting archive
360 # TELVOX Teleinformatica CODEC self-extractor for OS/2:
361 >49801 string \x79\xff\x80\xff\x76\xff \b, CODEC archive v3.21
362 >>49824 leshort =1 \b, 1 file
363 >>49824 leshort >1 \b, %u files
365 # added by Joerg Jenderek of https://www.freedos.org/software/?prog=kc
366 # and https://www.freedos.org/software/?prog=kpdos
367 # for FreeDOS files like KEYBOARD.SYS, KEYBRD2.SYS, KEYBRD3.SYS, *.KBD
368 0 string/b KCF FreeDOS KEYBoard Layout collection
369 # only version=0x100 found
370 >3 uleshort x \b, version 0x%x
371 # length of string containing author,info and special characters
373 #>>6 pstring x \b, name=%s
374 >>7 string >\0 \b, author=%-.14s
375 >>7 search/254 \xff \b, info=
376 #>>>&0 string x \b%-s
377 >>>&0 string x \b%-.15s
378 # for FreeDOS *.KL files
379 0 string/b KLF FreeDOS KEYBoard Layout file
380 # only version=0x100 or 0x101 found
381 >3 uleshort x \b, version 0x%x
384 >>8 string x \b, name=%-.2s
385 0 string \xffKEYB\ \ \ \0\0\0\0
386 >12 string \0\0\0\0`\004\360 MS-DOS KEYBoard Layout file
388 # DOS device driver updated by Joerg Jenderek at May 2011,Mar 2017
389 # https://amaus.net/static/S100/IBM/software/DOS/DOS%20techref/CHAPTER.009
390 0 ulequad&0x07a0ffffffff 0xffffffff
392 0 name msdos-driver DOS executable (
393 #!:mime application/octet-stream
394 !:mime application/x-dosdriver
395 # also found FreeDOS print driver SPOOL.DEV and disc compression driver STACLOAD.BIN
397 >40 search/7 UPX! \bUPX compressed
398 # DOS device driver attributes
399 >4 uleshort&0x8000 0x0000 \bblock device driver
401 >4 uleshort&0x8000 0x8000 \b
402 >>4 uleshort&0x0008 0x0008 \bclock
403 # fast video output by int 29h
404 >>4 uleshort&0x0010 0x0010 \bfast
405 # standard input/output device
406 >>4 uleshort&0x0003 >0 \bstandard
407 >>>4 uleshort&0x0001 0x0001 \binput
408 >>>4 uleshort&0x0003 0x0003 \b/
409 >>>4 uleshort&0x0002 0x0002 \boutput
410 >>4 uleshort&0x8000 0x8000 \bcharacter device driver
412 # upx compressed device driver has garbage instead of real in name field of header
415 # leading/trailing nulls, zeros or non ASCII characters in 8-byte name field at offset 10 are skipped
419 >>>>>>10 ubyte !0x2A \b%c
421 >>>>>11 ubyte !0x2E \b%c
424 >>>>>>12 ubyte !0x2E \b%c
426 >>>>13 ubyte !0x2E \b%c
428 >>>>>14 ubyte !0x2E \b%c
430 >>>>>15 ubyte !0x2E \b%c
433 >>>>>>16 ubyte <0xCB \b%c
436 >>>>>>17 ubyte <0x90 \b%c
437 # some character device drivers like ASPICD.SYS, btcdrom.sys and Cr_atapi.sys contain only spaces or points in name field
439 # they have their real name at offset 22
440 # also block device drivers like DUMBDRV.SYS
441 >>>>22 string >\056 %-.6s
442 >4 uleshort&0x8000 0x0000
443 # 32 bit sector addressing ( > 32 MB) for block devices
444 >>4 uleshort&0x0002 0x0002 \b,32-bit sector-
445 # support by driver functions 13h, 17h, 18h
446 >4 uleshort&0x0040 0x0040 \b,IOCTL-
447 # open, close, removable media support by driver functions 0Dh, 0Eh, 0Fh
448 >4 uleshort&0x0800 0x0800 \b,close media-
449 # output until busy support by int 10h for character device driver
450 >4 uleshort&0x8000 0x8000
451 >>4 uleshort&0x2000 0x2000 \b,until busy-
452 # direct read/write support by driver functions 03h,0Ch
453 >4 uleshort&0x4000 0x4000 \b,control strings-
454 >4 uleshort&0x8000 0x8000
455 >>4 uleshort&0x6840 >0 \bsupport
456 >4 uleshort&0x8000 0x0000
457 >>4 uleshort&0x4842 >0 \bsupport
459 # DOS driver cmd640x.sys has 0x12 instead of 0xffffffff for pointer field to next device header
460 0 ulequad 0x0513c00000000012
462 # DOS drivers DC2975.SYS, DUMBDRV.SYS, ECHO.SYS has also none 0xffffffff for pointer field
463 0 ulequad 0x32f28000ffff0016
465 0 ulequad 0x007f00000000ffff
467 0 ulequad 0x001600000000ffff
469 # DOS drivers LS120.SYS, MKELS120.SYS use reserved bits of attribute field
470 0 ulequad 0x0bf708c2ffffffff
472 0 ulequad 0x07bd08c2ffffffff
475 # updated by Joerg Jenderek
476 # GRR: line below too general as it catches also
477 # rt.lib DYADISKS.PIC and many more
478 # start with assembler instruction MOV
480 # skip "AppleWorks word processor data" like ARTICLE.1 ./apple
482 # skip some unknown basic binaries like RocketRnger.SHR
484 # skip "GPG symmetrically encrypted data" ./gnu
485 # skip "PGP symmetric key encrypted data" ./pgp
486 # openpgpdefs.h: fourth byte < 14 indicate cipher algorithm type
487 >>>4 ubyte >13 DOS executable (COM, 0x8C-variant)
488 # the remaining files should be DOS *.COM executables
489 # dosshell.COM 8cc0 2ea35f07 e85211 e88a11 b80058 cd
490 # hmload.COM 8cc8 8ec0 bbc02b 89dc 83c30f c1eb04 b4
491 # UNDELETE.COM 8cca 2e8916 6503 b430 cd21 8b 2e0200 8b
492 # BOOTFIX.COM 8cca 2e8916 9603 b430 cd21 8b 2e0200 8b
493 # RAWRITE3.COM 8cca 2e8916 d602 b430 cd21 8b 2e0200 8b
494 # SHARE.COM 8cca 2e8916 d602 b430 cd21 8b 2e0200 8b
495 # validchr.COM 8cca 2e8916 9603 b430 cd21 8b 2e028b1e
496 # devload.COM 8cca 8916ad01 b430 cd21 8b2e0200 892e
497 !:mime application/x-dosexec
500 # updated by Joerg Jenderek at Oct 2008
501 0 ulelong 0xffff10eb DR-DOS executable (COM)
502 # byte 0xeb conflicts with "sequent" magic leshort 0xn2eb
503 0 ubeshort&0xeb8d >0xeb00
504 # DR-DOS STACKER.COM SCREATE.SYS missed
507 >0 byte x DOS executable (COM)
508 !:mime application/x-dosexec
510 >6 string SFX\ of\ LHarc \b, %s
511 >0x1FE leshort 0xAA55 \b, boot code
512 >85 string UPX \b, UPX compressed
513 >4 string \ $ARX \b, ARX self-extracting archive
514 >4 string \ $LHarc \b, LHarc self-extracting archive
515 >0x20e string SFX\ by\ LARC \b, LARC self-extracting archive
519 # allow forward jumps only
521 # that offset must be accessible
529 # that offset must be accessible
532 # negative offset, must not lead into PSP
534 # that offset must be accessible
538 # updated by Joerg Jenderek at Oct 2008,2015
539 # following line is too general
541 # skip 2 linux kernels like memtest.bin with "\xb8\xc0\x07\x8e" in ./linux
542 >0 string !\xb8\xc0\x07\x8e
543 # modified by Joerg Jenderek
544 # syslinux COM32 or COM32R executable
545 >>1 lelong&0xFFFFFFFe 0x21CD4CFe COM executable (32-bit COMBOOT
546 # https://www.syslinux.org/wiki/index.php/Comboot_API
547 # Since version 5.00 c32 modules switched from the COM32 object format to ELF
548 !:mime application/x-c32-comboot-syslinux-exec
550 # https://syslinux.zytor.com/comboot.php
551 # older syslinux version ( <4 )
552 # (32-bit COMBOOT) programs *.C32 contain 32-bit code and run in flat-memory 32-bit protected mode
553 # start with assembler instructions mov eax,21cd4cffh
554 >>>1 lelong 0x21CD4CFf \b)
555 # syslinux:doc/comboot.txt
556 # A COM32R program must start with the byte sequence B8 FE 4C CD 21 (mov
557 # eax,21cd4cfeh) as a magic number.
558 # syslinux version (4.x)
559 # "COM executable (COM32R)" or "Syslinux COM32 module" by TrID
560 >>>1 lelong 0x21CD4CFe \b, relocatable)
561 # remaining are DOS COM executables starting with assembler instruction MOV
562 # like FreeDOS BANNER*.COM FINDDISK.COM GIF2RAW.COM WINCHK.COM
563 # MS-DOS SYS.COM RESTART.COM
564 # SYSLINUX.COM (version 1.40 - 2.13)
565 # GFXBOOT.COM (version 3.75)
566 # COPYBS.COM POWEROFF.COM INT18.COM
567 >>1 default x COM executable for DOS
568 !:mime application/x-dosexec
569 #!:mime application/x-ms-dos-executable
570 #!:mime application/x-msdos-program
574 >4 string \x77\x02\xcd\x20\xb9
575 >>36 string UPX! FREE-DOS executable (COM), UPX compressed
576 !:mime application/x-dosexec
578 252 string Must\ have\ DOS\ version DR-DOS executable (COM)
579 !:mime application/x-dosexec
581 # added by Joerg Jenderek at Oct 2008
582 # GRR search is not working
583 #34 search/2 UPX! FREE-DOS executable (COM), UPX compressed
584 34 string UPX! FREE-DOS executable (COM), UPX compressed
585 !:mime application/x-dosexec
587 35 string UPX! FREE-DOS executable (COM), UPX compressed
588 !:mime application/x-dosexec
590 # GRR search is not working
591 #2 search/28 \xcd\x21 COM executable for MS-DOS
593 2 string \xcd\x21 COM executable for DOS
594 !:mime application/x-dosexec
596 #DELTREE.cOM DELTREE2.cOM
597 4 string \xcd\x21 COM executable for DOS
598 !:mime application/x-dosexec
600 #IFMEMDSK.cOM ASSIGN.cOM COMP.cOM
601 5 string \xcd\x21 COM executable for DOS
602 !:mime application/x-dosexec
604 #DELTMP.COm HASFAT32.cOM
606 >0 byte !0xb8 COM executable for DOS
607 !:mime application/x-dosexec
611 >5 string !\xcd\x21 COM executable for DOS
612 !:mime application/x-dosexec
615 13 string \xcd\x21 COM executable for DOS
616 !:mime application/x-dosexec
619 18 string \xcd\x21 COM executable for MS-DOS
620 !:mime application/x-dosexec
623 23 string \xcd\x21 COM executable for MS-DOS
624 !:mime application/x-dosexec
626 #LOADFIX.cOm LOADFIX.cOm
627 30 string \xcd\x21 COM executable for MS-DOS
628 !:mime application/x-dosexec
631 70 string \xcd\x21 COM executable for DOS
632 !:mime application/x-dosexec
634 # many compressed/converted COMs start with a copy loop instead of a jump
635 0x6 search/0xa \xfc\x57\xf3\xa5\xc3 COM executable for MS-DOS
636 !:mime application/x-dosexec
638 0x6 search/0xa \xfc\x57\xf3\xa4\xc3 COM executable for DOS
639 !:mime application/x-dosexec
641 >0x18 search/0x10 \x50\xa4\xff\xd5\x73 \b, aPack compressed
642 0x3c string W\ Collis\0\0 COM executable for MS-DOS, Compack compressed
643 !:mime application/x-dosexec
645 # FIXME: missing diet .com compression
647 # miscellaneous formats
648 0 string/b LZ MS-DOS executable (built-in)
649 #0 byte 0xf0 MS-DOS program library data
653 # <stuartc@rd.bbc.co.uk> Stuart Cunningham
654 0 string/b \320\317\021\340\241\261\032\341AAFB\015\000OM\006\016\053\064\001\001\001\377 AAF legacy file using MS Structured Storage
655 >30 byte 9 (512B sectors)
656 >30 byte 12 (4kB sectors)
657 0 string/b \320\317\021\340\241\261\032\341\001\002\001\015\000\002\000\000\006\016\053\064\003\002\001\001 AAF file using MS Structured Storage
658 >30 byte 9 (512B sectors)
659 >30 byte 12 (4kB sectors)
661 # Popular applications
663 # Update: Joerg Jenderek
664 # URL: http://fileformats.archiveteam.org/wiki/DOC
665 # Reference: https://web.archive.org/web/20170206041048/
666 # http://www.msxnet.org/word2rtf/formats/ffh-dosword5
669 # skip droid skeleton like x-fmt-274-signature-id-488.doc
670 >128 ubyte >0 Microsoft
671 >>96 uleshort =0 Word
672 !:mime application/msword
674 # DCX is used in the Unix version.
676 >>>0x6E ulequad =0 1.0-4.0
677 >>>0x6E ulequad !0 5.0-6.0
678 >>>0x6E ulequad x (DOS) Document
679 # https://web.archive.org/web/20130831064118/http://msxnet.org/word2rtf/formats/write.txt
680 >>96 uleshort !0 Write 3.0 (Windows) Document
681 !:mime application/x-mswrite
683 # sometimes also doc like in splitter.doc srchtest.doc
685 # wTool must be 0125400 octal
686 #>>4 uleshort !0xAB00 \b, wTool %o
687 # reserved; must be zero
688 #>>6 ulelong !0 \b, reserved %u
689 # block pointer to the block containing optional file manager information
690 #>>0x1C uleshort x \b, at 0x%x info block
691 # jump to File manager information block
692 >>(0x1C.s*128) uleshort x
693 # test for valid information start; maybe also 0012h
694 >>>&-2 uleshort =0x0014
695 # Document ASCIIZ name
696 >>>>&0x12 string x %s
698 >>>>>&1 string x \b, author %s
700 >>>>>>&1 string x \b, reviser %s
702 >>>>>>>&1 string x \b, keywords %s
704 >>>>>>>>&1 string x \b, comment %s
706 >>>>>>>>>&1 string x \b, version %s
707 # date of last change MM/DD/YY
708 >>>>>>>>>>&1 string x \b, %-.8s
709 # creation date MM/DD/YY
710 >>>>>>>>>>&9 string x created %-.8s
711 # file name of print format like NORMAL.STY
712 >>0x1E string >0 \b, formatted by %-.66s
713 # count of pages in whole file for write variant; maybe some times wrong
714 >>96 uleshort >0 \b, %u pages
715 # name of the printer driver like HPLASMS
716 >>0x62 string >0 \b, %-.8s printer
717 # number of blocks used in the file; seems to be 0 for Word 4.0 and Write 3.0
718 >>0x6A uleshort >0 \b, %u blocks
719 # bit field for corrected text areas
720 #>>0x6C uleshort x \b, 0x%x bit field
721 # text of document; some times start with 4 non printable characters like CR LF
730 >>>>>>130 string x %s
732 >>>>>>131 ubyte >0x1F
733 >>>>>>>131 string x %s
734 >>>>>>131 ubyte <0x20
735 >>>>>>>132 ubyte >0x1F
736 >>>>>>>>132 string x %s
737 >>>>>>>132 ubyte <0x20
738 >>>>>>>>133 ubyte >0x1F
739 >>>>>>>>>133 string x %s
741 0 string/b PO^Q` Microsoft Word 6.0 Document
742 !:mime application/msword
745 >0 belong 0xfe320000 Microsoft Word for Macintosh 1.0
746 !:mime application/msword
748 >0 belong 0xfe340000 Microsoft Word for Macintosh 3.0
749 !:mime application/msword
751 >0 belong 0xfe37001c Microsoft Word for Macintosh 4.0
752 !:mime application/msword
754 >0 belong 0xfe370023 Microsoft Word for Macintosh 5.0
755 !:mime application/msword
758 0 string/b \333\245-\0\0\0 Microsoft Word 2.0 Document
759 !:mime application/msword
761 # Note: seems already recognized as "OLE 2 Compound Document" in ./ole2compounddocs
762 #512 string/b \354\245\301 Microsoft Word Document
763 #!:mime application/msword
766 0 string/b \xDB\xA5\x2D\x00 Microsoft WinWord 2.0 Document
767 !:mime application/msword
769 0 string/b \xDB\xA5\x2D\x00 Microsoft WinWord 2.0 Document
770 !:mime application/msword
773 0 string/b \x09\x04\x06\x00\x00\x00\x10\x00 Microsoft Excel Worksheet
774 !:mime application/vnd.ms-excel
775 # https://www.macdisk.com/macsigen.php
779 # Update: Joerg Jenderek
780 # URL: https://en.wikipedia.org/wiki/Lotus_1-2-3
781 # Reference: http://www.aboutvb.de/bas/formate/pdf/wk3.pdf
782 # Note: newer Lotus versions >2 use longer BOF record
783 # record type (BeginningOfFile=0000h) + length (001Ah)
785 # reserved should be 0h but 8c0dh for TUTMAC.WK3, 5h for SAMPADNS.WK3, 1h for a_readme.wk3, 1eh for K&G86.WK3
786 #>18 uleshort&0x73E0 0
787 # Lotus Multi Byte Character Set (LMBCS=1-31)
789 >>20 ubyte <32 Lotus 1-2-3
790 #!:mime application/x-123
791 !:mime application/vnd.lotus-1-2-3
793 # (version 5.26) labeled the entry as "Lotus 1-2-3 wk3 document data"
794 >>>4 uleshort 0x1000 WorKsheet, version 3
796 # (version 5.26) labeled the entry as "Lotus 1-2-3 wk4 document data"
797 >>>4 uleshort 0x1002 WorKsheet, version 4
798 # also worksheet template 4 (.wt4)
800 # no example or documentation for wk5
801 #>>4 uleshort 0x???? WorKsheet, version 4
803 # only MacrotoScript.123 example
804 >>>4 uleshort 0x1003 WorKsheet, version 97
805 # also worksheet template Smartmaster (.12M)?
807 # only Set_Y2K.123 example
808 >>>4 uleshort 0x1005 WorKsheet, version 9.8 Millennium
810 # no example for this version
811 >>>4 uleshort 0x8001 FoRMatting data
813 # (version 5.26) labeled the entry as "Lotus 1-2-3 fm3 or fmb document data"
814 # TrID labeles the entry as "Formatting Data for Lotus 1-2-3 worksheet"
815 >>>4 uleshort 0x8007 ForMatting data, version 3
817 >>>4 default x unknown
818 # file revision sub code 0004h for worksheets
819 >>>>6 uleshort =0x0004 worksheet
821 >>>>6 uleshort !0x0004 formatting data
823 # main revision number
824 >>>>4 uleshort x \b, revision 0x%x
825 >>>6 uleshort =0x0004 \b, cell range
826 # active cellcoord range (start row, page,column ; end row, page, column)
827 # start values normally 0~1st sheet A1
829 >>>>>10 ubyte >0 \b%d*
830 >>>>>8 uleshort x \b%d,
831 >>>>>11 ubyte x \b%d-
833 >>>>14 ubyte >0 \b%d*
834 # end raw, column normally not 0
835 >>>>12 uleshort x \b%d,
837 # Lotus Multi Byte Character Set (1~cp850,2~cp851,...,16~japan,...,31~??)
838 >>>>20 ubyte >1 \b, character set 0x%x
840 >>>>21 ubyte x \b, flags 0x%x
841 >>>6 uleshort !0x0004
842 # record type (FONTNAME=00AEh)
843 >>>>30 search/29 \0\xAE
844 # variable length m (2) + entries (1) + ?? (1) + LCMBS string (n)
845 >>>>>&4 string >\0 \b, 1st font "%s"
847 # Update: Joerg Jenderek
848 # URL: http://fileformats.archiveteam.org/wiki/Lotus_1-2-3
849 # Reference: http://www.schnarff.com/file-formats/lotus-1-2-3/WSFF2.TXT
850 # Note: Used by both old Lotus 1-2-3 and Lotus Symphony (DOS) til version 2.x
851 # record type (BeginningOfFile=0000h) + length (0002h)
853 # GRR: line above is too general as it catches also MS Windows CURsor
854 # to display MS Windows cursor (strength=70) before Lotus 1-2-3 (strength=70-1)
856 # skip Windows cursors with image height <256 and keep Lotus with low opcode 0001-0083h
858 # skip Windows cursors with image width 256 and keep Lotus with positiv opcode
860 # !:mime application/x-123
861 !:mime application/vnd.lotus-1-2-3
863 # revision number (0404h = 123 1A, 0405h = Lotus Symphony , 0406h = 123 2.x wk1 , 8006h = fmt , ...)
864 # undocumented; (version 5.26) labeled the configurations as "Lotus 1-2-3"
865 >>>4 uleshort 0x0007 1-2-3 CoNFiguration, version 2.x (PGRAPH.CNF)
867 >>>4 uleshort 0x0C05 1-2-3 CoNFiguration, version 2.4J
869 >>>4 uleshort 0x0801 1-2-3 CoNFiguration, version 1-2.1
871 >>>4 uleshort 0x0802 Symphony CoNFiguration
873 >>>4 uleshort 0x0804 1-2-3 CoNFiguration, version 2.2
875 >>>4 uleshort 0x080A 1-2-3 CoNFiguration, version 2.3-2.4
877 >>>4 uleshort 0x1402 1-2-3 CoNFiguration, version 3.x
879 >>>4 uleshort 0x1450 1-2-3 CoNFiguration, version 4.x
881 # (version 5.26) labeled the entry as "Lotus 123"
882 # TrID labeles the entry as "Lotus 123 Worksheet (generic)"
883 >>>4 uleshort 0x0404 1-2-3 WorKSheet, version 1
884 # extension "wks" also for Microsoft Works document
886 # (version 5.26) labeled the entry as "Lotus 123"
887 # TrID labeles the entry as "Lotus 123 Worksheet (generic)"
888 >>>4 uleshort 0x0405 Symphony WoRksheet, version 1.0
890 # (version 5.26) labeled the entry as "Lotus 1-2-3 wk1 document data"
891 # TrID labeles the entry as "Lotus 123 Worksheet (V2)"
892 >>>4 uleshort 0x0406 1-2-3/Symphony worksheet, version 2
895 # no example for this japan version
896 >>>4 uleshort 0x0600 1-2-3 WorKsheet, version 1.xJ
898 # no example or documentation for wk2
899 #>>>4 uleshort 0x???? 1-2-3 WorKsheet, version 2
901 # undocumented japan version
902 >>>4 uleshort 0x0602 1-2-3 worksheet, version 2.4J
904 # (version 5.26) labeled the entry as "Lotus 1-2-3 fmt document data"
905 >>>4 uleshort 0x8006 1-2-3 ForMaTting data, version 2.x
906 # japan version 2.4J (fj3)
908 # no example for this version
909 >>>4 uleshort 0x8007 1-2-3 FoRMatting data, version 2.0
911 # (version 5.26) labeled the entry as "Lotus 1-2-3"
912 >>>4 default x unknown worksheet or configuration
914 >>>>4 uleshort x \b, revision 0x%x
915 # 2nd record for most worksheets describes cells range
917 # 3nd record for most japan worksheets describes cells range
918 >>>(8.s+10) use lotus-cells
919 # check and then display Lotus worksheet cells range
921 # look for type (RANGE=0006h) + length (0008h) at record begin
922 >0 ubelong 0x06000800 \b, cell range
923 # cell range (start column, row, end column, row) start values normally 0,0~A1 cell
925 >>>4 uleshort x \b%d,
926 >>>6 uleshort x \b%d-
931 0 string/b WordPro\0 Lotus WordPro
932 !:mime application/vnd.lotus-wordpro
933 0 string/b WordPro\r\373 Lotus WordPro
934 !:mime application/vnd.lotus-wordpro
937 # Summary: Script used by InstallScield to uninstall applications
939 # Submitted by: unknown
940 # Modified by (1): Abel Cheung <abelcheung@gmail.com> (replace useless entry)
941 0 string \x71\xa8\x00\x00\x01\x02
942 >12 string Stirling\ Technologies, InstallShield Uninstall Script
945 #0 string Nullsoft\ AVS\ Preset\ \060\056\061\032 A plug in for Winamp ms-windows Freeware media player
946 0 string/b Nullsoft\ AVS\ Preset\ Winamp plug in
948 # Windows Metafile .WMF
949 0 string/b \327\315\306\232 Windows metafile
952 0 string/b \002\000\011\000 Windows metafile
955 0 string/b \001\000\011\000 Windows metafile
959 #tz3 files whatever that is (MS Works files)
960 0 string/b \003\001\001\004\070\001\000\000 tz3 ms-works file
961 0 string/b \003\002\001\004\070\001\000\000 tz3 ms-works file
962 0 string/b \003\003\001\004\070\001\000\000 tz3 ms-works file
965 #0 string \211\000\077\003\005\000\063\237\127 065 to \027\266\151\064\005\045\101\233\021\002 PGP sig
966 0 string \211\000\077\003\005\000\063\237\127\065\027\266\151\064\005\045\101\233\021\002 PGP sig
967 0 string \211\000\077\003\005\000\063\237\127\066\027\266\151\064\005\045\101\233\021\002 PGP sig
968 0 string \211\000\077\003\005\000\063\237\127\067\027\266\151\064\005\045\101\233\021\002 PGP sig
969 0 string \211\000\077\003\005\000\063\237\127\070\027\266\151\064\005\045\101\233\021\002 PGP sig
970 0 string \211\000\077\003\005\000\063\237\127\071\027\266\151\064\005\045\101\233\021\002 PGP sig
971 0 string \211\000\225\003\005\000\062\122\207\304\100\345\042 PGP sig
973 # windows zips files .dmf
974 0 string/b MDIF\032\000\010\000\000\000\372\046\100\175\001\000\001\036\001\000 MS Windows special zipped file
977 # Update: Joerg Jenderek
978 # URL: https://en.wikipedia.org/wiki/CUR_(file_format)
979 # Note: similar to Windows CURsor. container for BMP (only DIB part) or PNG
987 # displays number of icons and information for icon or cursor
989 # skip some Lotus 1-2-3 worksheets, CYCLE.PIC and keep Windows cursors with
990 # 1st data offset = dir header size + n * dir entry size = 6 + n * 10h = ?6h
991 >18 ulelong &0x00000006
992 # skip remaining worksheets, because valid only for DIB image (40) or PNG image (\x89PNG)
993 >>(18.l) ulelong x MS Windows
994 >>>0 ubelong 0x00000100 icon resource
995 # https://www.iana.org/assignments/media-types/image/vnd.microsoft.icon
996 !:mime image/vnd.microsoft.icon
999 >>>>4 uleshort x - %d icon
1001 >>>>4 uleshort >1 \bs
1003 >>>>0x06 use ico-entry
1006 >>>>>0x16 use ico-entry
1007 >>>0 ubelong 0x00000200 cursor resource
1009 !:mime image/x-win-bitmap
1011 >>>>4 uleshort x - %d icon
1012 >>>>4 uleshort >1 \bs
1014 >>>>0x06 use cur-entry
1015 #>>>>0x16 use cur-entry
1016 # display information of one cursor entry
1018 >0 use cur-ico-entry
1019 >4 uleshort x \b, hotspot @%dx
1021 # display information of one icon entry
1023 >0 use cur-ico-entry
1024 # normally 0 1 but also found 14
1025 >4 uleshort >1 \b, %d planes
1026 # normally 0 1 but also found some 3, 4, some 6, 8, 24, many 32, two 256
1027 >6 uleshort >1 \b, %d bits/pixel
1028 # display shared information of cursor or icon entry
1029 0 name cur-ico-entry
1034 # number of colors in palette
1035 >2 ubyte !0 \b, %d colors
1037 #>3 ubyte x \b, reserved %x
1038 #>8 ulelong x \b, image size %d
1039 # offset of PNG or DIB image
1040 #>12 ulelong x \b, offset 0x%x
1041 # PNG header (\x89PNG)
1042 >(12.l) ubelong =0x89504e47
1043 # 1 space char after "with" to get phrase "with PNG image" by magic in ./images
1044 >>&-4 indirect x \b with
1046 >(12.l) ubelong !0x89504e47
1047 #>>&-4 use dib-image
1049 # Windows non-animated cursors
1050 # Update: Joerg Jenderek
1051 # URL: https://en.wikipedia.org/wiki/CUR_(file_format)
1052 # Note: similar to Windows ICOn. container for BMP ( only DIB part)
1053 # GRR: line below is too general as it catches also Lotus 1-2-3 files
1061 0 string/b PK\010\010BGI Borland font
1063 # then there is a copyright notice
1067 0 string/b pk\010\010BGI Borland device
1069 # then there is a copyright notice
1072 # Windows Recycle Bin record file (named INFO2)
1073 # By Abel Cheung (abelcheung AT gmail dot com)
1074 # Version 4 always has 280 bytes (0x118) per record, version 5 has 800 bytes
1075 # Since Vista uses another structure, INFO2 structure probably won't change
1076 # anymore. Detailed analysis in:
1077 # http://www.cybersecurityinstitute.biz/downloads/INFO2.pdf
1079 >12 lelong 0x00000118 Windows Recycle Bin INFO2 file (Win98 or below)
1082 >12 lelong 0x00000320 Windows Recycle Bin INFO2 file (Win2k - WinXP)
1084 # From Doug Lee via a FreeBSD pr
1085 9 string GERBILDOC First Choice document
1086 9 string GERBILDB First Choice database
1087 9 string GERBILCLIP First Choice database
1088 0 string GERBIL First Choice device file
1089 9 string RABBITGRAPH RabbitGraph file
1090 0 string DCU1 Borland Delphi .DCU file
1091 0 string =!<spell> MKS Spell hash list (old format)
1092 0 string =!<spell2> MKS Spell hash list
1094 #0 string AH Halo(TM) bitmapped font file
1095 0 lelong 0x08086b70 TurboC BGI file
1096 0 lelong 0x08084b50 TurboC Font file
1098 # Debian#712046: The magic below identifies "Delphi compiled form data".
1099 # An additional source of information is available at:
1100 # http://www.woodmann.com/fravia/dafix_t1.htm
1102 >4 pstring >\0 Delphi compiled form '%s'
1104 # tests for DBase files moved, updated and merged to database
1106 0 string PMCC Windows 3.x .GRP file
1107 1 string RDC-meg MegaDots
1108 >8 byte >0x2F version %c
1109 >9 byte >0x2F \b.%c file
1111 >4 lelong 0x00021401 Windows shortcut file
1113 # .PIF files added by Joerg Jenderek from https://smsoft.ru/en/pifdoc.htm
1114 # only for windows versions equal or greater 3.0
1115 0x171 string MICROSOFT\ PIFEX\0 Windows Program Information File
1116 !:mime application/x-dosexec
1118 #>2 string >\0 \b, Title:%.30s
1119 >0x24 string >\0 \b for %.63s
1120 >0x65 string >\0 \b, directory=%.64s
1121 >0xA5 string >\0 \b, parameters=%.64s
1122 #>0x181 leshort x \b, offset %x
1123 #>0x183 leshort x \b, offsetdata %x
1124 #>0x185 leshort x \b, section length %x
1125 >0x187 search/0xB55 WINDOWS\ VMM\ 4.0\0
1127 >>>&-1 string <PIFMGR.DLL \b, icon=%s
1128 #>>>&-1 string PIFMGR.DLL \b, icon=%s
1129 >>>&-1 string >PIFMGR.DLL \b, icon=%s
1131 >>>&-1 string <Terminal \b, font=%.32s
1132 #>>>&-1 string =Terminal \b, font=%.32s
1133 >>>&-1 string >Terminal \b, font=%.32s
1135 >>>&-1 string <Lucida\ Console \b, TrueTypeFont=%.32s
1136 #>>>&-1 string =Lucida\ Console \b, TrueTypeFont=%.32s
1137 >>>&-1 string >Lucida\ Console \b, TrueTypeFont=%.32s
1138 #>0x187 search/0xB55 WINDOWS\ 286\ 3.0\0 \b, Windows 3.X standard mode-style
1139 #>0x187 search/0xB55 WINDOWS\ 386\ 3.0\0 \b, Windows 3.X enhanced mode-style
1140 >0x187 search/0xB55 WINDOWS\ NT\ \ 3.1\0 \b, Windows NT-style
1141 #>0x187 search/0xB55 WINDOWS\ NT\ \ 4.0\0 \b, Windows NT-style
1142 >0x187 search/0xB55 CONFIG\ \ SYS\ 4.0\0 \b +CONFIG.SYS
1143 #>>&06 string x \b:%s
1144 >0x187 search/0xB55 AUTOEXECBAT\ 4.0\0 \b +AUTOEXEC.BAT
1145 #>>&06 string x \b:%s
1147 # DOS EPS Binary File Header
1148 # From: Ed Sznyter <ews@Black.Market.NET>
1149 0 belong 0xC5D0D3C6 DOS EPS Binary File
1151 >4 long >0 Postscript starts at byte %d
1152 >>8 long >0 length %d
1153 >>>12 long >0 Metafile starts at byte %d
1154 >>>>16 long >0 length %d
1155 >>>20 long >0 TIFF starts at byte %d
1156 >>>>24 long >0 length %d
1158 # TNEF magic From "Joomy" <joomy@se-ed.net>
1159 # Microsoft Outlook's Transport Neutral Encapsulation Format (TNEF)
1160 0 lelong 0x223e9f78 TNEF
1161 !:mime application/vnd.ms-tnef
1163 # Norton Guide (.NG , .HLP) files added by Joerg Jenderek from source NG2HTML.C
1164 # of http://www.davep.org/norton-guides/ng2h-105.tgz
1165 # https://en.wikipedia.org/wiki/Norton_Guides
1167 # only value 0x100 found at offset 2
1168 >2 ulelong 0x00000100 Norton Guide
1170 >>8 string >\0 "%-.40s"
1171 #>>6 uleshort x \b, MenuCount=%u
1173 >>48 string >\0 \b, %-.66s
1174 >>114 string >\0 %-.66s
1176 # 4DOS help (.HLP) files added by Joerg Jenderek from source TPHELP.PAS
1177 # of https://www.4dos.info/
1178 # pointer,HelpID[8]=4DHnnnmm
1179 0 ulelong 0x48443408 4DOS help file
1180 >4 string x \b, version %-4.4s
1182 # old binary Microsoft (.HLP) files added by Joerg Jenderek from http://file-extension.net/seeker/file_extension_hlp
1183 0 ulequad 0x3a000000024e4c MS Advisor help file
1185 # HtmlHelp files (.chm)
1186 0 string/b ITSF\003\000\000\000\x60\000\000\000 MS Windows HtmlHelp Data
1188 # GFA-BASIC (Wolfram Kleff)
1189 2 string/b GFA-BASIC3 GFA-BASIC 3 data
1191 #------------------------------------------------------------------------------
1192 # From Stuart Caie <kyzer@4u.net> (developer of cabextract)
1193 # Update: Joerg Jenderek
1194 # URL: https://en.wikipedia.org/wiki/Cabinet_(file_format)
1195 # Reference: https://msdn.microsoft.com/en-us/library/bb267310.aspx
1196 # Note: verified by `7z l *.cab`
1197 # Microsoft Cabinet files
1198 0 string/b MSCF\0\0\0\0 Microsoft Cabinet archive data
1200 # https://support.microsoft.com/en-us/help/973559/frequently-asked-questions-about-the-microsoft-support-diagnostic-tool
1201 # CAB with *.{diagcfg,diagpkg} is used by Microsoft Support Diagnostic Tool MSDT.EXE
1202 # because some archive does not have *.diag* as 1st or 2nd archive member like
1203 # O15CTRRemove.diagcab or AzureStorageAnalyticsLogs_global.DiagCab
1204 # brute looking after header for filenames with diagcfg or diagpkg extension in CFFILE section
1205 >0x2c search/980/c .diag \b, Diagnostic
1206 !:mime application/vnd.ms-cab-compressed
1208 # http://fileformats.archiveteam.org/wiki/PUZ
1209 # Microsoft Publisher version about 2003 has a "Pack and Go" feature that
1210 # bundles a Publisher document *PNG.pub with all links into a CAB
1211 >0x2c search/300/c png.pub\0 \b, Publisher Packed and Go
1212 !:mime application/vnd.ms-cab-compressed
1214 # ppz variant with Microsoft PowerPoint Viewer ppview32.exe to play PowerPoint presentation
1215 >0x2c search/17/c ppview32.exe\0 \b, PowerPoint Viewer Packed and Go
1216 !:mime application/vnd.ms-powerpoint
1217 #!:mime application/mspowerpoint
1219 # URL: https://en.wikipedia.org/wiki/Windows_Desktop_Gadgets
1220 # Reference: https://docs.microsoft.com/en-us/previous-versions/windows/desktop/sidebar/
1221 # http://win10gadgets.com/download/273/ All_CPU_Meter1.zip/All_CPU_Meter_V4.7.3.gadget
1222 >0x2c search/968/c gadget.xml \b, Windows Desktop Gadget
1223 #!:mime application/vnd.ms-cab-compressed
1224 # http://extension.nirsoft.net/gadget
1225 !:mime application/x-windows-gadget
1227 # http://www.incredimail.com/
1228 # IncrediMail CAB contains an initialisation file "content.ini" like in im2.ims
1229 >0x2c search/3369/c content.ini\0 \b, IncrediMail
1230 !:mime application/x-incredimail
1231 # member Flavor.htm implies IncrediMail ecard like in tell_a_friend.imf
1232 >>0x2c search/83/c Flavor.htm\0 ecard
1234 # member Macromedia Flash data *.swf implies IncrediMail skin like in im2.ims
1235 >>0x2c search/211/c .swf\0 skin
1237 # member anim.im3 implies IncrediMail animation like in letter_fold.ima
1238 >>0x2c search/92/c anim.im3\0 animation
1240 # other IncrediMail cab archive
1242 >>>0x2c search/116/c thumb ecard, image, notifier or skin
1243 !:ext imf/imi/imn/ims
1244 # http://file-extension.net/seeker/file_extension_ime
1245 >>>0x2c default x emoticons or sound
1247 # no Diagnostic, Packed and Go, Windows Desktop Gadget, IncrediMail
1249 # look for 1st member name
1251 # https://en.wikipedia.org/wiki/SNP_file_format
1252 >>>&-1 string/c _accrpt_.snp \b, Access report snapshot
1253 !:mime application/msaccess
1255 # https://en.wikipedia.org/wiki/Microsoft_InfoPath
1256 >>>&-1 string manifest.xsf \b, InfoPath Form Template
1257 !:mime application/vnd.ms-cab-compressed
1258 #!:mime application/vnd.ms-infopath
1260 # https://www.cabextract.org.uk/wince_cab_format/
1261 # extension of DOS 8+3 name with ".000" of 1st archive member name implies Windows CE installer
1262 >>>&7 string =.000 \b, WinCE install
1263 !:mime application/vnd.ms-cab-compressed
1266 # https://support.microsoft.com/kb/934307/en-US
1267 # All inspected MSU contain a file with name WSUSSCAN.cab
1268 # that is called "Windows Update meta data" by Microsoft
1269 >>>&-1 string/c wsusscan.cab \b, Microsoft Standalone Update
1270 !:mime application/vnd.ms-cab-compressed
1273 # look at point charcter of 1st archive member name for file name extension
1274 >>>>&-1 search/255 .
1275 # http://www.pptfaq.com/FAQ00164_What_is_a_PPZ_file-.htm
1276 # PPZ were created using Pack & Go feature of PowerPoint versions 97 - 2002
1277 # packs optional files, a PowerPoint presentation *.ppt with optional PLAYLIST.LST to CAB
1278 >>>>>&0 string/c ppt\0 \b, PowerPoint Packed and Go
1279 !:mime application/vnd.ms-powerpoint
1280 #!:mime application/mspowerpoint
1282 # https://msdn.microsoft.com/en-us/library/windows/desktop/bb773190(v=vs.85).aspx
1283 # first member *.theme implies Windows 7 Theme Pack like in CommunityShowcaseAqua3.themepack
1284 # or Windows 8 Desktop Theme Pack like in PanoramicGlaciers.deskthemepack
1285 >>>>>&0 string/c theme \b, Windows
1286 !:mime application/x-windows-themepack
1287 # https://www.drewkeller.com/content/using-theme-both-windows-7-and-windows-8
1288 # 1st member Panoramic.theme or Panoramas.theme implies Windows 8-10 Theme Pack
1289 # with MTSM=RJSPBS in [MasterThemeSelector] inside *.theme
1290 >>>>>>(16.l+16) string =Panoram 8
1292 >>>>>>(16.l+16) string !Panoram 7 or 8
1293 !:ext themepack/deskthemepack
1294 >>>>>>(16.l+16) ubyte x Theme Pack
1296 # look for null terminator of 1st member name
1297 >>>>>>&0 search/255 \0
1298 # 2nd member name WSUSSCAN.cab like in Microsoft-Windows-MediaFeaturePack-OOB-Package.msu
1299 >>>>>>>&16 string/c wsusscan.cab \b, Microsoft Standalone Update
1300 !:mime application/vnd.ms-cab-compressed
1302 >>>>>>>&16 default x
1303 # archive with more then one file need some output in version 5.32 to avoid error message like
1304 # Magdir/msdos, 1138: Warning: Current entry does not yet have a description for adding a MIME type
1305 # Magdir/msdos, 1139: Warning: Current entry does not yet have a description for adding a EXTENSION type
1306 # file: could not find any valid magic files!
1307 >>>>>>>>28 uleshort >1 \b, many
1308 !:mime application/vnd.ms-cab-compressed
1310 # remaining archives with just one file
1311 >>>>>>>>28 uleshort =1
1312 # neither extra bytes nor cab chain implies Windows 2000,XP setup files in directory i386
1313 >>>>>>>>>30 uleshort =0x0000 \b, Windows 2000/XP setup
1314 # cut of last char of source extension and add underscore to generate extension
1315 # TERMCAP._ ... FXSCOUNT.H_ ... L3CODECA.AC_ ... NPDRMV2.ZI_
1316 !:mime application/vnd.ms-cab-compressed
1318 # archive need some output like "single" in version 5.32 to avoid error messages
1319 >>>>>>>>>30 uleshort !0x0000 \b, single
1320 !:mime application/vnd.ms-cab-compressed
1322 # TODO: additional extensions like
1323 # .xtp InfoPath Template Part
1324 # .lvf Logitech Video Effects Face Accessory
1325 >8 ulelong x \b, %u bytes
1326 >28 uleshort 1 \b, 1 file
1327 >28 uleshort >1 \b, %u files
1328 # Reserved fields, set to zero
1329 #>4 belong !0 \b, reserved1 %x
1330 #>12 belong !0 \b, reserved2 %x
1331 # offset of the first CFFILE entry coffFiles: minimal 2Ch
1332 >16 ulelong x \b, at 0x%x
1333 >(16.l) use cab-file
1334 # at least also 2nd member
1338 # second member info
1340 #>20 belong !0 \b, reserved %x
1341 # Cabinet file format version. Currently, versionMajor = 1 and versionMinor = 3
1342 >24 ubeshort !0x0301 \b version 0x%x
1343 # number of CFFOLDER entries
1344 >26 uleshort >1 \b, %u cffolders
1345 # cabinet file option indicators 1~PREVIOUS, 2~NEXT, 4~reserved fields
1346 # only found for flags 0 1 2 3 4 not 7
1347 >30 uleshort >0 \b, flags 0x%x
1348 # Cabinet files have a 16-bit cabinet setID field that is designed for application use.
1349 # default is zero, however, the -i option of cabarc can be used to set this field
1350 >32 uleshort >0 \b, ID %u
1351 # iCabinet is number of this cabinet file in a set, where 0 for the first cabinet
1352 #>34 uleshort x \b, iCabinet %u
1353 # add one for display because humans start numbering by 1 and also fit to name of disk szDisk*
1354 >34 uleshort+1 x \b, number %u
1355 >30 uleshort &0x0004 \b, extra bytes
1356 # cbCFHeader optional size of per-cabinet reserved area 14h 1800h
1357 >>36 uleshort >0 %u in head
1358 # cbCFFolder is optional size of per-folder reserved area
1359 >>38 ubyte >0 %u in folder
1360 # cbCFData is optional size of per-datablock reserved area
1361 >>39 ubyte >0 %u in data block
1362 # optional per-cabinet reserved area abReserve[cbCFHeader]
1364 # 1st CFFOLDER after reserved area in header
1365 >>>(36.s+40) use cab-folder
1366 # no reserved area in header
1367 >30 uleshort ^0x0004
1368 # no previous and next cab archive
1369 >>30 uleshort =0x0000
1370 >>>36 use cab-folder
1371 # only previous cab archive
1372 >>30 uleshort =0x0001 \b, previous
1373 >>>36 use cab-anchor
1374 # only next cab archive
1375 >>30 uleshort =0x0002 \b, next
1376 >>>36 use cab-anchor
1377 # previous+next cab archive
1378 # can not use sub routine cab-anchor to display previous and next cabinet together
1379 #>>>36 use cab-anchor
1380 #>>>>&0 use cab-anchor
1381 >>30 uleshort =0x0003 \b, previous
1383 # optional name of previous disk szDisk*
1384 >>>>&1 string x disk %s
1385 >>>>>&1 string x \b, next %s
1386 # optional name of previous disk szDisk*
1387 >>>>>>&1 string x disk %s
1388 >>>>>>>&1 use cab-folder
1389 # display filename and disk name of previous or next cabinet
1391 # optional name of previous/next cabinet file szCabinet*[255]
1393 # optional name of previous/next disk szDisk*[255]
1394 >>&1 string x disk %s
1395 # display folder structure CFFOLDER information like compression of cabinet
1397 # offset of the CFDATA block in this folder
1398 #>0 ulelong x \b, coffCabStart 0x%x
1399 # number of CFDATA blocks in folder
1400 >4 uleshort x \b, %u datablock
1403 # compression typeCompress: 0~None 1~MSZIP 0x1503~LZX:21 0x1003~LZX:16 0x0f03~LZX:15
1404 >6 uleshort x \b, 0x%x compression
1405 # optional per-folder reserved area
1406 #>8 ubequad x \b, abReserve 0x%llx
1407 # display member structure CFFILE information like member name of cabinet
1409 # cbFile is uncompressed size of file in bytes
1410 #>0 ulelong x \b, cbFile %u
1411 # uoffFolderStart is uncompressed offset of file in folder
1412 #>4 ulelong >0 \b, uoffFolderStart 0x%x
1413 # iFolder is index into the CFFOLDER area. 0 indicates first folder in cabinet
1414 # define ifoldCONTINUED_FROM_PREV (0xFFFD)
1415 # define ifoldCONTINUED_TO_NEXT (0xFFFE)
1416 # define ifoldCONTINUED_PREV_AND_NEXT (0xFFFF)
1417 >8 uleshort >0 \b, iFolder 0x%x
1418 # date stamp for file
1419 #>10 uleshort x \b, date 0x%x
1420 # time stamp for file
1421 #>12 uleshort x \b, time 0x%x
1422 # attribs is attribute flags for file
1423 # define _A_RDONLY (0x01) file is read-only
1424 # define _A_HIDDEN (0x02) file is hidden
1425 # define _A_SYSTEM (0x04) file is a system file
1426 # define _A_ARCH (0x20) file modified since last backup
1427 # example http://sebastien.kirche.free.fr/pebuilder_plugins/depends.cab
1428 # define _A_EXEC (0x40) run after extraction
1429 # define _A_NAME_IS_UTF (0x80) szName[] contains UTF
1430 # define UNKNOWN (0x0100) undocumented or accident
1431 #>14 uleshort x \b, attribs 0x%x
1433 >>14 uleshort &0x0001 \bR
1434 >>14 uleshort &0x0002 \bH
1435 >>14 uleshort &0x0004 \bS
1436 >>14 uleshort &0x0020 \bA
1437 >>14 uleshort &0x0040 \bX
1438 >>14 uleshort &0x0080 \bUtf
1439 # unknown 0x0100 flag found on one XP_CD:\I386\DRIVER.CAB
1440 >>14 uleshort &0x0100 \b?
1441 # szName is name of archive member
1443 # next archive member name if more files
1444 #>>&17 string >\0 \b, NEXT NAME %-.50s
1446 # InstallShield Cabinet files
1447 0 string/b ISc( InstallShield Cabinet archive data
1448 >5 byte&0xf0 =0x60 version 6,
1449 >5 byte&0xf0 !0x60 version 4/5,
1450 >(12.l+40) lelong x %u files
1452 # Windows CE package files
1453 0 string/b MSCE\0\0\0\0 Microsoft WinCE install header
1454 >20 lelong 0 \b, architecture-independent
1455 >20 lelong 103 \b, Hitachi SH3
1456 >20 lelong 104 \b, Hitachi SH4
1457 >20 lelong 0xA11 \b, StrongARM
1458 >20 lelong 4000 \b, MIPS R4000
1459 >20 lelong 10003 \b, Hitachi SH3
1460 >20 lelong 10004 \b, Hitachi SH3E
1461 >20 lelong 10005 \b, Hitachi SH4
1462 >20 lelong 70001 \b, ARM 7TDMI
1463 >52 leshort 1 \b, 1 file
1464 >52 leshort >1 \b, %u files
1465 >56 leshort 1 \b, 1 registry entry
1466 >56 leshort >1 \b, %u registry entries
1469 # Windows Enhanced Metafile (EMF)
1470 # See msdn.microsoft.com/archive/en-us/dnargdi/html/msdn_enhmeta.asp
1471 # for further information.
1473 >40 string \ EMF Windows Enhanced Metafile (EMF) image data
1474 >>44 ulelong x version 0x%x
1477 0 string/b \224\246\056 Microsoft Word Document
1478 !:mime application/msword
1480 # From: "Nelson A. de Oliveira" <naoliv@gmail.com>
1481 # Magic type for Dell's BIOS .hdr files
1484 >23 string Dell %s system BIOS
1486 >>48 byte x version %d.
1490 >>48 string x version %.3s
1492 # Type: Microsoft Document Imaging Format (.mdi)
1493 # URL: https://en.wikipedia.org/wiki/Microsoft_Document_Imaging_Format
1494 # From: Daniele Sempione <scrows@oziosi.org>
1496 #0 short 0x5045 Microsoft Document Imaging Format
1498 # MS eBook format (.lit)
1499 0 string/b ITOLITLS Microsoft Reader eBook Data
1500 >8 lelong x \b, version %u
1501 !:mime application/x-ms-reader
1503 # Windows CE Binary Image Data Format
1504 # From: Dr. Jesus <j@hug.gs>
1505 0 string/b B000FF\n Windows Embedded CE binary image
1507 # The second byte of these signatures is a file version; I don't know what,
1508 # if anything, produced files with version numbers 0-2.
1509 # From: John Elliott <johne@seasip.demon.co.uk>
1510 0 string \xfc\x03\x00 Mallard BASIC program data (v1.11)
1511 0 string \xfc\x04\x00 Mallard BASIC program data (v1.29+)
1512 0 string \xfc\x03\x01 Mallard BASIC protected program data (v1.11)
1513 0 string \xfc\x04\x01 Mallard BASIC protected program data (v1.29+)
1515 0 string MIOPEN Mallard BASIC Jetsam data
1516 0 string Jetsam0 Mallard BASIC Jetsam index data
1518 # DOS backup 2.0 to 3.2
1522 # plausibility check for date
1526 # actually 121 nul bytes
1527 >>>0x7 string \0\0\0\0\0\0\0\0
1528 >>>>0x1 ubyte x DOS 2.0 backup id file, sequence %d
1530 >>>>0x0 ubyte 0xff \b, last disk
1534 # skip some AppleWorks word like Tomahawk.Awp, WIN98SE-DE.vhd
1535 # by looking for trailing nul of maximal file name string
1537 # test for flag byte: FFh~complete file, 00h~split file
1538 # FFh -127 = -1 -127 = -128
1539 # 00h -127 = 0 -127 = -127
1541 # plausibility check for file name length
1543 # looking for terminating nul of file name string
1544 >>>(0x53.b+4) ubyte 0
1545 # looking if last char of string is valid DOS file name
1546 >>>>(0x53.b+3) ubyte >0x1F
1547 # actually 44 nul bytes
1548 # but sometimes garbage according to Ralf Quint. So can not be used as test
1549 #>0x54 string \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0
1550 # first char of full file name is DOS (5Ch) or UNIX (2Fh) path separator
1551 # only DOS variant found. UNIX variant according to V32SLASH.TXT in archive PD0315.EXE
1552 >>>>>5 ubyte&0x8C 0x0C
1553 # ./msdos (version 5.30) labeled the entry as
1554 # "DOS 2.0 backed up file %s, split file, sequence %d" or
1555 # "DOS 2.0 backed up file %s, complete file"
1556 >>>>>>0 ubyte x DOS 2.0-3.2 backed up
1557 #>>>>>>0 ubyte 0xff complete
1559 >>>>>>>1 uleshort x sequence %d of
1560 # full file name with path but without drive letter and colon stored from 0x05 til 0x52
1561 >>>>>>0x5 string x file %s
1562 # backup name is original filename
1564 # magic/Magdir/msdos, 1169: Warning: EXTENSION type ` *' has bad char '*'
1565 # file: line 1169: Bad magic entry ' *'
1566 # after header original file content
1567 >>>>>>128 indirect x \b;
1570 # DOS backup 3.3 to 5.x
1573 0 string \x8bBACKUP\x20
1574 # actually 128 nul bytes
1575 >0xa string \0\0\0\0\0\0\0\0
1576 >>0x9 ubyte x DOS 3.3 backup control file, sequence %d
1577 >>0x8a ubyte 0xff \b, last disk
1579 # NB: The BACKUP.nnn files consist of the files backed up,