msdos

sleuthit-2.09 一个磁盘的工具集

#------------------------------------------------------------------------------
# msdos:  file(1) magic for MS-DOS files
#

# .BAT files (Daniel Quinlan, [e-mail])
# updated by Joerg Jenderek
0	string	@			
>1	string/cB	\ echo\ off	MS-DOS batch file text
>1	string/cB	echo\ off	MS-DOS batch file text
>1	string/cB	rem\ 		MS-DOS batch file text
>1	string/cB	set\ 		MS-DOS batch file text


# OS/2 batch files are REXX. the second regex is a bit generic, oh well
# the matched commands seem to be common in REXX and uncommon elsewhere
100	regex/c =^[\ \t]{0,10}call[\ \t]{1,10}rxfunc OS/2 REXX batch file text
100	regex/c =^[\ \t]{0,10}say\ ['"]	     OS/2 REXX batch file text


100 regex/c =^\\s*call\\s+rxfuncadd.*sysloadfu OS/2 REXX batch file text
100 regex/c =^\\s*say\ ['"] OS/2 REXX batch file text

0	leshort		0x14c	MS Windows COFF Intel 80386 object file
#>4	ledate		x	stamp %s
0	leshort		0x166	MS Windows COFF MIPS R4000 object file
#>4	ledate		x	stamp %s
0	leshort		0x184	MS Windows COFF Alpha object file
#>4	ledate		x	stamp %s
0	leshort		0x268	MS Windows COFF Motorola 68000 object file
#>4	ledate		x	stamp %s
0	leshort		0x1f0	MS Windows COFF PowerPC object file
#>4	ledate		x	stamp %s
0	leshort		0x290	MS Windows COFF PA-RISC object file
#>4	ledate		x	stamp %s

# XXX - according to Microsoft's spec, at an offset of 0x3c in a
# PE-format executable is the offset in the file of the PE header;
# unfortunately, that's a little-endian offset, and there's no way
# to specify an indirect offset with a specified byte order.
# So, for now, we assume the standard MS-DOS stub, which puts the
# PE header at 0x80 = 128.
#
# Required OS version and subsystem version were 4.0 on some NT 3.51
# executables built with Visual C++ 4.0, so it's not clear that
# they're interesting.  The user version was 0.0, but there's
# probably some linker directive to set it.  The linker version was
# 3.0, except for one ".exe" which had it as 4.20 (same damn linker!).
#
# many of the compressed formats were extraced from IDARC 1.23 source code
#
0	string	MZ		MS-DOS executable
>0 string MZ\0\0\0\0\0\0\0\0\0\0PE\0\0 \b, PE for MS Windows
>>&18	leshort&0x2000	>0	(DLL)
>>&88	leshort		0	(unknown subsystem)
>>&88	leshort		1	(native)
>>&88	leshort		2	(GUI)
>>&88	leshort		3	(console)
>>&88	leshort		7	(POSIX)
>>&0	leshort		0x0	unknown processor
>>&0	leshort		0x14c	Intel 80386
>>&0	leshort		0x166	MIPS R4000
>>&0	leshort		0x184	Alpha
>>&0	leshort		0x268	Motorola 68000
>>&0	leshort		0x1f0	PowerPC
>>&0	leshort		0x290	PA-RISC
>>&18	leshort&0x0100	>0	32-bit
>>&18	leshort&0x1000	>0	system file
>>&0xf4 search/0x140 \x0\x40\x1\x0
>>>(&0.l+(4)) string MSCF \b, WinHKI CAB self-extracting archive

>0x18  leshort >0x3f
>>(0x3c.l) string PE\0\0 PE 
# hooray, there's a DOS extender using the PE format, with a valid PE
# executable inside (which just prints a message and exits if run in win)
>>>(8.s*16) string 32STUB for MS-DOS, 32rtm DOS extender
>>>(8.s*16) string !32STUB for MS Windows
>>>>(0x3c.l+22)	leshort&0x2000	>0	(DLL)
>>>>(0x3c.l+92)	leshort		0	(unknown subsystem)
>>>>(0x3c.l+92)	leshort		1	(native)
>>>>(0x3c.l+92)	leshort		2	(GUI)
>>>>(0x3c.l+92)	leshort		3	(console)
>>>>(0x3c.l+92)	leshort		7	(POSIX)
>>>>(0x3c.l+4)	leshort		0x0	unknown processor
>>>>(0x3c.l+4)	leshort		0x14c	Intel 80386
>>>>(0x3c.l+4)	leshort		0x166	MIPS R4000
>>>>(0x3c.l+4)	leshort		0x184	Alpha
>>>>(0x3c.l+4)	leshort		0x268	Motorola 68000
>>>>(0x3c.l+4)	leshort		0x1f0	PowerPC
>>>>(0x3c.l+4)	leshort		0x290	PA-RISC
>>>>(0x3c.l+22)	leshort&0x0100	>0	32-bit
>>>>(0x3c.l+22)	leshort&0x1000	>0	system file
>>>>(0x3c.l+232)	lelong	>0	Mono/.Net assembly

>>>>(0x3c.l+0xf8)	string		UPX0 \b, UPX compressed
>>>>(0x3c.l+0xf8)	search/0x140	PEC2 \b, PECompact2 compressed
>>>>(0x3c.l+0xf8)	search/0x140	UPX2
>>>>>(&0x10.l+(-4))	string		PK\3\4 \b, ZIP self-extracting archive (Info-Zip)
>>>>(0x3c.l+0xf8)	search/0x140	.idata
>>>>>(&0xe.l+(-4))	string		PK\3\4 \b, ZIP self-extracting archive (Info-Zip)
>>>>>(&0xe.l+(-4))	string		ZZ0 \b, ZZip self-extracting archive
>>>>>(&0xe.l+(-4))	string		ZZ1 \b, ZZip self-extracting archive
>>>>(0x3c.l+0xf8)	search/0x140	.rsrc
>>>>>(&0x0f.l+(-4))	string		a\\\4\5 \b, WinHKI self-extracting archive
>>>>>(&0x0f.l+(-4))	string		Rar! \b, RAR self-extracting archive
>>>>>(&0x0f.l+(-4))	search/0x3000	MSCF \b, InstallShield self-extracting archive
>>>>>(&0x0f.l+(-4))	search/32	Nullsoft \b, Nullsoft Installer self-extracting archive
>>>>(0x3c.l+0xf8)	search/0x140	.data
>>>>>(&0x0f.l)		string		WEXTRACT \b, MS CAB-Installer self-extracting archive
>>>>(0x3c.l+0xf8)	search/0x140	.petite\0 \b, Petite compressed
>>>>>(0x3c.l+0xf7)	byte		x
>>>>>>(&0x104.l+(-4))	string		=!sfx! \b, ACE self-extracting archive
>>>>(0x3c.l+0xf8)	search/0x140	.WISE \b, WISE installer self-extracting archive
>>>>(0x3c.l+0xf8)	search/0x140	.dz\0\0\0 \b, Dzip self-extracting archive
>>>>(0x3c.l+0xf8)	search/0x140	.reloc
>>>>>(&0xe.l+(-4))	search/0x180	PK\3\4 \b, ZIP self-extracting archive (WinZip)

>>>>&(0x3c.l+0xf8)	search/0x100	_winzip_ \b, ZIP self-extracting archive (WinZip)
>>>>&(0x3c.l+0xf8)	search/0x100	SharedD \b, Microsoft Installer self-extracting archive
>>>>0x30		string		Inno \b, InnoSetup self-extracting archive

>>(0x3c.l)		string		NE \b, NE
>>>(0x3c.l+0x36)	byte		0 (unknown OS)
>>>(0x3c.l+0x36)	byte		1 for OS/2 1.x
>>>(0x3c.l+0x36)	byte		2 for MS Windows 3.x
>>>(0x3c.l+0x36)	byte		3 for MS-DOS
>>>(0x3c.l+0x36)	byte		>3 (unknown OS)
>>>(0x3c.l+0x36)	byte		0x81 for MS-DOS, Phar Lap DOS extender
>>>(0x3c.l+0x0c)	leshort&0x8003	0x8002 (DLL)
>>>(0x3c.l+0x0c)	leshort&0x8003	0x8001 (driver)
>>>&(&0x24.s-1)		string		ARJSFX \b, ARJ self-extracting archive
>>>(0x3c.l+0x70)	search/0x80	WinZip(R)\ Self-Extractor \b, ZIP self-extracting archive (WinZip)

>>(0x3c.l)		string		LX\0\0 \b, LX
>>>(0x3c.l+0x0a)	leshort		<1 (unknown OS)
>>>(0x3c.l+0x0a)	leshort		1 for OS/2
>>>(0x3c.l+0x0a)	leshort		2 for MS Windows
>>>(0x3c.l+0x0a)	leshort		3 for DOS
>>>(0x3c.l+0x0a)	leshort		>3 (unknown OS)
>>>(0x3c.l+0x10)	lelong&0x28000	=0x8000 (DLL)
>>>(0x3c.l+0x10)	lelong&0x20000	>0 (device driver)
>>>(0x3c.l+0x10)	lelong&0x300	0x300 (GUI)
>>>(0x3c.l+0x10)	lelong&0x28300	<0x300 (console)
>>>(0x3c.l+0x08)	leshort		1 i80286
>>>(0x3c.l+0x08)	leshort		2 i80386
>>>(0x3c.l+0x08)	leshort		3 i80486
>>>(8.s*16)		string		emx \b, emx
>>>>&1			string		x %s
>>>&(&0x54.l-3)		string		arjsfx \b, ARJ self-extracting archive

# MS Windows system file, supposedly a collection of LE executables
>>(0x3c.l)		string		W3 \b, W3 for MS Windows

>>(0x3c.l)		string		LE\0\0 \b, LE executable
>>>(0x3c.l+0x0a)	leshort		1
# some DOS extenders use LE files with OS/2 header
>>>>0x240		search/0x100	DOS/4G for MS-DOS, DOS4GW DOS extender
>>>>0x240		search/0x200	WATCOM\ C/C++ for MS-DOS, DOS4GW DOS extender
>>>>0x440		search/0x100	CauseWay\ DOS\ Extender for MS-DOS, CauseWay DOS extender
>>>>0x40		search/0x40	PMODE/W for MS-DOS, PMODE/W DOS extender
>>>>0x40		search/0x40	STUB/32A for MS-DOS, DOS/32A DOS extender (stub)
>>>>0x40		search/0x80	STUB/32C for MS-DOS, DOS/32A DOS extender (configurable stub)
>>>>0x40		search/0x80	DOS/32A for MS-DOS, DOS/32A DOS extender (embedded)
# this is a wild guess; hopefully it is a specific signature
>>>>&0x24		lelong		<0x50
>>>>>(&0x4c.l)		string		\xfc\xb8WATCOM
>>>>>>&0		search/8	3\xdbf\xb9 \b, 32Lite compressed
# another wild guess: if real OS/2 LE executables exist, they probably have higher start EIP
#>>>>(0x3c.l+0x1c)	lelong		>0x10000 for OS/2
# fails with DOS-Extenders.
>>>(0x3c.l+0x0a)	leshort		2 for MS Windows
>>>(0x3c.l+0x0a)	leshort		3 for DOS
>>>(0x3c.l+0x0a)	leshort		4 for MS Windows (VxD)
>>>(&0x7c.l+0x26)	string		UPX \b, UPX compressed
>>>&(&0x54.l-3)		string		UNACE \b, ACE self-extracting archive

# looks like ASCII, probably some embedded copyright message.
# and definitely not NE/LE/LX/PE
>>0x3c		lelong	>0x20000000
>>>(4.s*512)	leshort !0x014c \b, MZ for MS-DOS
# header data too small for extended executable
>2		long	!0
>>0x18		leshort	<0x40
>>>(4.s*512)	leshort !0x014c

>>>>&(2.s-514)	string	!LE
>>>>>&-2	string	!BW \b, MZ for MS-DOS
>>>>&(2.s-514)	string	LE \b, LE
>>>>>0x240	search/0x100	DOS/4G for MS-DOS, DOS4GW DOS extender
# educated guess since indirection is still not capable enough for complex offset
# calculations (next embedded executable would be at &(&2*512+&0-2)
# I suspect there are only LE executables in these multi-exe files
>>>>&(2.s-514)	string	BW
>>>>>0x240	search/0x100	DOS/4G ,\b LE for MS-DOS, DOS4GW DOS extender (embedded)
>>>>>0x240	search/0x100	!DOS/4G ,\b BW collection for MS-DOS

# This sequence skips to the first COFF segment, usually .text
>(4.s*512)	leshort		0x014c \b, COFF
>>(8.s*16)	string		go32stub for MS-DOS, DJGPP go32 DOS extender
>>(8.s*16)	string		emx
>>>&1		string		x for DOS, Win or OS/2, emx %s
>>&(&0x42.l-3)	byte		x 
>>>&0x26	string		UPX \b, UPX compressed
# and yet another guess: small .text, and after large .data is unusal, could be 32lite
>>&0x2c		search/0xa0	.text
>>>&0x0b	lelong		<0x2000
>>>>&0		lelong		>0x6000 \b, 32lite compressed

>(8.s*16) string $WdX \b, WDos/X DOS extender

# .EXE formats (Greg Roelofs, [e-mail])
#
>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
>0xe7	string	LH/2\ Self-Extract \b, %s
>0x1c	string	diet \b, diet compressed
>0x1c	string	LZ09 \b, LZEXE v0.90 compressed
>0x1c	string	LZ91 \b, LZEXE v0.91 compressed
>0x1c   string  tz \b, TinyProg compressed
>0x1e	string	PKLITE \b, %s compressed
>0x64   string  W\ Collis\0\0 \b, Compack compressed
>0x24	string	LHa's\ SFX \b, LHa self-extracting archive
>0x24	string	LHA's\ SFX \b, LHa self-extracting archive
>0x24   string  \ $ARX \b, ARX self-extracting archive
>0x24   string  \ $LHarc \b, LHarc self-extracting archive
>0x20   string  SFX\ by\ LARC \b, LARC self-extracting archive
>1638	string	-lh5- \b, LHa self-extracting archive v2.13S
>0x17888 string	Rar! \b, RAR self-extracting archive
>0x40   string aPKG \b, aPackage self-extracting archive

>32      string AIN
>>35     string 2              \b, AIN 2.x compressed
>>35     string <2             \b, AIN 1.x compressed
>>35     string >2             \b, AIN 1.x compressed
>28      string UC2X           \b, UCEXE compressed
>28      string WWP\           \b, WWPACK compressed

# skip to the end of the exe
>(4.s*512)	long	x 
>>&(2.s-517)	byte	x 
>>>&0	string		PK\3\4 \b, ZIP self-extracting archive
>>>&0	string		Rar! \b, RAR self-extracting archive
>>>&0	string		=!\x11 \b, AIN 2.x self-extracting archive
>>>&0	string		=!\x12 \b, AIN 2.x self-extracting archive
>>>&0	string		=!\x17 \b, AIN 1.x self-extracting archive
>>>&0	string		=!\x18 \b, AIN 1.x self-extracting archive
>>>&7	search/400	**ACE** \b, ACE self-extracting archive
>>>&0	search/0x480	UC2SFX\ Header \b, UC2 self-extracting archive

>0x1c	string		RJSX \b, ARJ self-extracting archive
# winarj stores a message in the stub instead of the sig in the MZ header
>0x20	search/0xe0	aRJsfX \b, ARJ self-extracting archive

# a few unknown ZIP sfxes, no idea if they are needed or if they are
# already captured by the generic patterns above
>122		string		Windows\ self-extracting\ ZIP	\b, ZIP self-extracting archive
>(8.s*16)	search/0x20	PKSFX \b, ZIP self-extracting archive (PKZIP)
# TODO: how to add this? >FileSize-34 string Windows\ Self-Installing\ Executable \b, ZIP self-extracting archive
#

# TELVOX Teleinformatica CODEC self-extractor for OS/2:
>49801	string	\x79\xff\x80\xff\x76\xff	\b, CODEC archive v3.21
>>49824	leshort		=1			\b, 1 file
>>49824	leshort		>1			\b, %u files

# .COM formats (Daniel Quinlan, [e-mail])
# Uncommenting only the first two lines will cover about 2/3 of COM files,
# but it isn't feasible to match all COM files since there must be at least
# two dozen different one-byte "magics".
0	byte		0xe9		DOS executable (COM)
>0x1FE	leshort		0xAA55		\b, boot code
>6	string		SFX\ of\ LHarc	(%s)
0	belong	0xffffffff		DOS executable (device driver)
#CMD640X2.SYS
>10	string	>\x23			
>>10	string	!\x2e			
>>>17	string	<\x5B			
>>>>10	string	x			\b, name: %.8s
#UDMA.SYS KEYB.SYS CMD640X2.SYS
>10	string	<\x41			
>>12	string	>\x40			
>>>10	string	!$			
>>>>12	string	x			\b, name: %.8s
#BTCDROM.SYS ASPICD.SYS
>22	string	>\x40			
>>22	string	<\x5B			
>>>23	string	<\x5B			
>>>>22	string	x			\b, name: %.8s
#ATAPICD.SYS
>76	string	\0			
>>77	string	>\x40			
>>>77	string	<\x5B			
>>>>77	string	x			\b, name: %.8s
0	byte		0x8c		DOS executable (COM)
# 0xeb conflicts with "sequent" magic
0	byte		0xeb		DOS executable (COM)
>0x1FE	leshort		0xAA55		\b, boot code
>85	string		UPX		\b, UPX compressed
>4	string		\ $ARX		\b, ARX self-extracting archive
>4	string		\ $LHarc	\b, LHarc self-extracting archive
>0x20e	string		SFX\ by\ LARC	\b, LARC self-extracting archive
0	byte		0xb8		COM executable
# modified by Joerg Jenderek
>1	lelong          !0x21cd4cff	for DOS
# http://syslinux.zytor.com/comboot.php
# (32-bit COMBOOT) programs *.C32 contain 32-bit code and run in flat-memory 32-bit protected mode
# start with assembler instructions mov eax,21cd4cffh
>1	lelong          0x21cd4cff	(32-bit COMBOOT)
0	string	\x81\xfc		
>4	string	\x77\x02\xcd\x20\xb9	
>>36	string	UPX! 			FREE-DOS executable (COM), UPX compressed
252	string Must\ have\ DOS\ version	DR-DOS executable (COM)
# GRR search is not working
#2	search/28	\xcd\x21	COM executable for MS-DOS
#WHICHFAT.cOM
2	string	\xcd\x21		COM executable for DOS