joyce8/EMBER2024-capa huggingface dataset:
Function at 0x47b6a0
Capabilities:
Create process on windows

Disassembly:
sub esp, 0x208
push ebx
push ebp
push esi
push edi
mov esi, ecx
push 0
call fcn.00481b20
mov ebp, dword [esp + 0x220]
mov eax, dword [esp + 0x21c]
push ebp
push 0
push 0
push eax
push 0x6a29e4
push 0
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
mov edi, eax
cmp edi, 0x20
ja 0x47b799
lea ecx, [esp + 0x10]
push ecx
push str..htm
push closesocket
mov ecx, esi
call fcn.0047b7b0
test eax, eax
jne 0x47b799
mov ebx, dword [sym.imp.KERNEL32.dll_lstrcatA]
lea edx, [esp + 0x10]
push str._shellopencommand
push edx
call ebx
lea eax, [esp + 0x10]
lea ecx, [esp + 0x10]
push eax
push ecx
push closesocket
mov ecx, esi
call fcn.0047b7b0
test eax, eax
jne 0x47b799
lea edx, [esp + 0x10]
push 0x6a29c0
push edx
call fcn.004bc0d0
mov esi, eax
add esp, 8
test esi, esi
jne 0x47b76a
lea eax, [esp + 0x10]
push 0x6a29bc
push eax
call fcn.004bc0d0
mov esi, eax
add esp, 8
test esi, esi
jne 0x47b76a
lea ecx, [esp + 0x10]
push ecx
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esp + eax + 0xf]
jmp 0x47b76d
mov byte [esi], 0
push 0x6a2184
push esi
call ebx
mov edx, dword [esp + 0x21c]
push edx
push esi
call ebx
lea eax, [esp + 0x10]
push ebp
push eax
call dword [sym.imp.KERNEL32.dll_WinExec]
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x208
ret 8
mov eax, edi
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x208
ret 8

Function at 0x47b7b0
Capabilities:
Query or enumerate registry value

Disassembly:
mov ecx, dword [esp + 8]
mov edx, dword [esp + 4]
sub esp, 0x10c
lea eax, [esp]
push esi
push eax
push 1
push 0
push ecx
push edx
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
mov esi, eax
test esi, esi
jne 0x47b812
mov edx, dword [esp + 4]
lea eax, [esp + 8]
lea ecx, [esp + 0xc]
push eax
push ecx
push esi
push edx
mov dword [esp + 0x18], 0x104
call dword [sym.imp.ADVAPI32.dll_RegQueryValueA]
mov ecx, dword [esp + 0x11c]
lea eax, [esp + 0xc]
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
mov edx, dword [esp + 4]
push edx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov eax, esi
pop esi
add esp, 0x10c
ret 0xc
Function at 0x481a60
Capabilities:
Get common file path

Disassembly:
push 0xffffffffffffffff
push 0x4dbc78
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
push ecx
push edi
mov edi, ecx
mov eax, dword [edi + 0x118]
test eax, eax
jne 0x481b10
mov eax, dword [0x6a95d8]
push esi
mov dword [esp + 8], eax
push 0x104
push 0x104
lea ecx, [esp + 0x10]
mov dword [esp + 0x1c], 0
call fcn.004cc6d4
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push 0xffffffffffffffff
lea ecx, [esp + 0xc]
call fcn.004cc723
push str.winhlp32.exe
lea ecx, [esp + 0xc]
call fcn.004cc680
mov ecx, dword [esp + 8]
push ecx
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov esi, eax
test esi, esi
je 0x481af7
push 0x6a
push esi
call dword [sym.imp.USER32.dll_LoadCursorA]
test eax, eax
je 0x481af7
push eax
call dword [sym.imp.USER32.dll_CopyIcon]
mov dword [edi + 0x118], eax
push esi
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
lea ecx, [esp + 8]
mov dword [esp + 0x14], 0xffffffff
call fcn.004cc2f0
pop esi
mov ecx, dword [esp + 8]
pop edi
mov dword fs:[0], ecx
add esp, 0x10
ret
Function at 0x484c10
Capabilities:
Get number of processors

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x4dc100
push eax
mov dword fs:[0], esp
sub esp, 0x14
push ebx
push esi
push edi
mov edi, dword [esp + 0x30]
mov esi, ecx
mov eax, dword [edi]
mov ecx, dword [eax - 8]
test ecx, ecx
je 0x484db7
mov ecx, dword [0x6a95d8]
mov dword [esp + 0x10], 0
mov dword [esp + 0xc], ecx
mov dword [esp + 0x28], 0
mov dword [esp + 0x30], ecx
mov ecx, dword [eax - 8]
mov bl, 1
test ecx, ecx
mov byte [esp + 0x28], bl
jle 0x484d0c
lea eax, [esp + 0x10]
lea ecx, [esp + 0x14]
push eax
push edi
push ecx
mov ecx, esi
call fcn.00483930
push eax
lea ecx, [esp + 0x10]
mov byte [esp + 0x2c], 2
call fcn.004cc3dd
lea ecx, [esp + 0x14]
mov byte [esp + 0x28], bl
call fcn.004cc2f0
push ecx
mov ecx, esp
mov dword [esp + 0x20], esp
push 0x6a2184
call fcn.004cc35e
lea edx, [esp + 0x14]
push 0x3d
push edx
lea eax, [esp + 0x24]
push edi
push eax
mov ecx, esi
call fcn.00483cf0
push eax
lea ecx, [esp + 0x34]
mov byte [esp + 0x2c], 3
call fcn.004cc3dd
lea ecx, [esp + 0x18]
mov byte [esp + 0x28], bl
call fcn.004cc2f0
lea ecx, [esp + 0xc]
call fcn.004cc7b8
mov ecx, dword [esp + 0xc]
push 0x6a2bc4
push ecx
call fcn.004bb094
add esp, 8
test eax, eax
je 0x484d34
mov edx, dword [edi]
mov ecx, dword [esp + 0x10]
mov eax, dword [edx - 8]
cmp ecx, eax
jl 0x484c6d
mov esi, dword [esp + 0x34]
lea ecx, [esp + 0x30]
mov byte [esp + 0x28], 0
call fcn.004cc2f0
lea ecx, [esp + 0xc]
mov dword [esp + 0x28], 0xffffffff
call fcn.004cc2f0
jmp 0x484dbb
lea eax, [esp + 0x30]
mov ecx, esi
push eax
call fcn.004849b0
test eax, eax
push 0
je 0x484d9f
lea ecx, [esp + 0x34]
push 0x64
push ecx
mov ecx, esi
call fcn.00483050
mov ecx, dword [esp + 0x3c]
test ecx, ecx
je 0x484d85
cmp eax, 0x64
jg 0x484d73
mov edx, dword [esp + 0x38]
push eax
push 0x64
push edx
call dword [sym.imp.KERNEL32.dll_MulDiv]
mov esi, eax
jmp 0x484d10
push 0x64
push eax
mov eax, dword [esp + 0x40]
push eax
call dword [sym.imp.KERNEL32.dll_MulDiv]
mov esi, eax
jmp 0x484d10
cmp eax, 0x64
jge 0x484d0c
mov ecx, dword [esp + 0x34]
push 0x64
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_MulDiv]
mov esi, eax
jmp 0x484d10
mov edx, dword [esp + 0x3c]
lea eax, [esp + 0x34]
push edx
push eax
mov ecx, esi
call fcn.00483050
mov esi, eax
jmp 0x484d10
mov esi, dword [esp + 0x34]
mov eax, dword [esp + 0x38]
cmp esi, eax
jl 0x484dc5
mov eax, esi
mov ecx, dword [esp + 0x20]
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
add esp, 0x20
ret 0x10
Function at 0x48cb00
Capabilities:
Enumerate files on windows
Enumerate files recursively

Disassembly:
push 0xffffffffffffffff
push 0x4dc3e1
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x178
push ebp
mov dword [esp + 8], ecx
push esi
push edi
lea ecx, [esp + 0x24]
call fcn.0048d180
lea ecx, [esp + 0x34]
mov dword [esp + 0x18c], 0
call fcn.0048d180
lea ecx, [esp + 0x14]
mov byte [esp + 0x18c], 1
call fcn.0048d180
mov eax, dword [esp + 0x1a0]
mov edi, dword [esp + 0x19c]
mov ebp, dword [esp + 0x198]
cmp eax, 1
mov byte [esp + 0x18c], 2
jne 0x48cb7f
mov dword [edi], 0
mov dword [ebp], 0
mov eax, dword [esp + 0x194]
lea ecx, [esp + 0x24]
push eax
call fcn.0048d1f0
lea ecx, [esp + 0x24]
push ecx
call fcn.0048d820
add esp, 4
lea ecx, [esp + 0x24]
push 0x6a33ec
call fcn.0048d270
lea edx, [esp + 0x44]
lea ecx, [esp + 0x24]
push edx
call fcn.0048d6a0
push eax
call dword [sym.imp.KERNEL32.dll_FindFirstFileA]
cmp eax, 0xffffffff
mov dword [esp + 0xc], eax
je 0x48cd04
mov esi, 0x6a33e0
lea eax, [esp + 0x70]
mov dl, byte [eax]
mov cl, dl
cmp dl, byte [esi]
jne 0x48cbfa
test cl, cl
je 0x48cbf6
mov dl, byte [eax + 1]
mov cl, dl
cmp dl, byte [esi + 1]
jne 0x48cbfa
add eax, 2
add esi, 2
test cl, cl
jne 0x48cbd6
xor eax, eax
jmp 0x48cbff
sbb eax, eax
sbb eax, 0xffffffff
test eax, eax
je 0x48cce8
mov esi, 0x6a33dc
lea eax, [esp + 0x70]
mov dl, byte [eax]
mov cl, dl
cmp dl, byte [esi]
jne 0x48cc34
test cl, cl
je 0x48cc30
mov dl, byte [eax + 1]
mov cl, dl
cmp dl, byte [esi + 1]
jne 0x48cc34
add eax, 2
add esi, 2
test cl, cl
jne 0x48cc10
xor eax, eax
jmp 0x48cc39
sbb eax, eax
sbb eax, 0xffffffff
test eax, eax
je 0x48cce8
test byte [esp + 0x44], 0x10
mov eax, dword [esp + 0x194]
push eax
jne 0x48cc91
lea ecx, [esp + 0x38]
call fcn.0048d1f0
lea ecx, [esp + 0x34]
push ecx
call fcn.0048d820
add esp, 4
lea edx, [esp + 0x70]
lea ecx, [esp + 0x34]
push edx
call fcn.0048d270
push 0
lea ecx, [esp + 0x38]
call fcn.0048d6a0
push eax
call fcn.004bcc32
add esp, 8
test eax, eax
jne 0x48cce8
inc dword [ebp]
jmp 0x48cce8
lea ecx, [esp + 0x18]
call fcn.0048d1f0
lea ecx, [esp + 0x14]
push ecx
call fcn.0048d820
add esp, 4
lea edx, [esp + 0x70]
lea ecx, [esp + 0x14]
push edx
call fcn.0048d270
push 0
lea ecx, [esp + 0x18]
call fcn.0048d6a0
push eax
call fcn.004bcc32
add esp, 8
test eax, eax
jne 0x48cce8
mov ecx, dword [edi]
push eax
inc ecx
push edi
mov dword [edi], ecx
push ebp
lea ecx, [esp + 0x20]
call fcn.0048d6b0
mov ecx, dword [esp + 0x1c]
push eax
call fcn.0048cb00
mov ecx, dword [esp + 0xc]
lea eax, [esp + 0x44]
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_FindNextFileA]
test eax, eax
jne 0x48cbcd
mov eax, dword [esp + 0xc]
push eax
call dword [sym.imp.KERNEL32.dll_FindClose]
mov esi, dword [ebp]
mov eax, dword [edi]
lea ecx, [esp + 0x14]
add esi, eax
mov byte [esp + 0x18c], 1
call fcn.0048d1a0
lea ecx, [esp + 0x34]
mov byte [esp + 0x18c], 0
call fcn.0048d1a0
lea ecx, [esp + 0x24]
mov dword [esp + 0x18c], 0xffffffff
call fcn.0048d1a0
mov ecx, dword [esp + 0x184]
mov eax, esi
pop edi
pop esi
pop ebp
mov dword fs:[0], ecx
add esp, 0x184
ret 0x10
Function at 0x48d5c0
Capabilities:
Access peb ldr_data

Disassembly:
push 0xffffffffffffffff
push 0x4dc448
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x10
push esi
mov esi, ecx
lea ecx, [esp + 4]
call fcn.0048d180
mov eax, dword [esp + 0x24]
lea ecx, [esp + 4]
push eax
mov dword [esp + 0x20], 0
call fcn.0048d1f0
mov ecx, dword [esp + 0x30]
mov edx, dword [esp + 0x2c]
mov eax, dword [esp + 0x28]
push ecx
push edx
lea ecx, [esp + 0xc]
push eax
push ecx
mov ecx, esi
call fcn.0048d4f0
lea ecx, [esp + 4]
mov esi, eax
mov dword [esp + 0x1c], 0xffffffff
call fcn.0048d1a0
mov ecx, dword [esp + 0x14]
mov eax, esi
pop esi
mov dword fs:[0], ecx
add esp, 0x1c
ret 0x10

Function at 0x48d8e0
Capabilities:
Create directory

Disassembly:
push 0xffffffffffffffff
push 0x4dc4c0
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x20
push ebx
push esi
push edi
lea ecx, [esp + 0xc]
call fcn.0048d180
xor ebx, ebx
lea ecx, [esp + 0x1c]
mov dword [esp + 0x34], ebx
call fcn.0048d180
mov esi, dword [esp + 0x3c]
lea ecx, [esp + 0xc]
push esi
mov byte [esp + 0x38], 1
call fcn.0048d1f0
cmp dword [esp + 0x40], ebx
jne 0x48d968
push ebx
push esi
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
lea ecx, [esp + 0x1c]
mov esi, eax
mov byte [esp + 0x34], bl
call fcn.0048d1a0
lea ecx, [esp + 0xc]
mov dword [esp + 0x34], 0xffffffff
call fcn.0048d1a0
mov eax, esi
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x20]
mov dword fs:[0], ecx
add esp, 0x2c
ret
lea eax, [esp + 0xc]
push eax
call fcn.0048d820
add esp, 4
lea ecx, [esp + 0xc]
mov esi, 1
call fcn.004463b0
cmp eax, esi
jb 0x48d9eb
mov edi, dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
push 1
push 1
push esi
push 0x6a33f0
lea ecx, [esp + 0x1c]
call fcn.0048d5c0
cmp eax, 1
jne 0x48d9dd
push esi
lea ecx, [esp + 0x20]
push eax
push ecx
lea ecx, [esp + 0x18]
call fcn.0048d360
push ebx
lea ecx, [esp + 0x20]
call fcn.0048d6b0
push eax
call fcn.004bcc32
add esp, 8
test eax, eax
jge 0x48d9dd
push ebx
lea ecx, [esp + 0x20]
call fcn.0048d6a0
push eax
call edi
test eax, eax
je 0x48da20
lea ecx, [esp + 0xc]
inc esi
call fcn.004463b0
cmp esi, eax
jbe 0x48d98d
lea ecx, [esp + 0x1c]
mov byte [esp + 0x34], bl
call fcn.0048d1a0
lea ecx, [esp + 0xc]
mov dword [esp + 0x34], 0xffffffff
call fcn.0048d1a0
pop edi
pop esi
mov eax, 1
pop ebx
mov ecx, dword [esp + 0x20]
mov dword fs:[0], ecx
add esp, 0x2c
ret
lea ecx, [esp + 0x1c]
mov byte [esp + 0x34], bl
call fcn.0048d1a0
lea ecx, [esp + 0xc]
mov dword [esp + 0x34], 0xffffffff
call fcn.0048d1a0
mov ecx, dword [esp + 0x2c]
pop edi
pop esi
xor eax, eax
pop ebx
mov dword fs:[0], ecx
add esp, 0x2c
ret
Function at 0x48f680
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, dword [esp + 0xc]
push ebp
xor ebp, ebp
push esi
cmp ebx, 1
push edi
jl 0x48f69b
cmp ebx, 8
jg 0x48f69b
mov eax, 1
jmp 0x48f69d
xor eax, eax
mov esi, dword [esp + 0x14]
push str.bad_pack_level
push eax
push esi
call fcn.0048def0
mov eax, dword [esi + 0x6af70]
add esp, 0xc
cmp eax, ebp
mov dword [esi + 0x6af78], ebp
jne 0x48f6d4
mov dword [esi + 0x6af78], 1
mov dword [esi + 0x6af70], 0x10000
mov ecx, 0x7fff
xor eax, eax
lea edi, [esi + 0x4af70]
mov dword [esi + 0x6af6c], ebp
rep stosd dword es:[edi], eax
mov ax, word [ebx*8 + 0x5b7a82]
xor ecx, ecx
mov dword [esi + 0x6af98], eax
mov cx, word [ebx*8 + 0x5b7a80]
xor edx, edx
mov dword [esi + 0x6af9c], ecx
mov dx, word [ebx*8 + 0x5b7a84]
xor eax, eax
mov dword [esi + 0x6afa0], edx
mov ax, word [ebx*8 + 0x5b7a86]
cmp ebx, 2
mov dword [esi + 0x6af94], eax
jg 0x48f735
mov eax, dword [esp + 0x1c]
or byte [eax], 4
jmp 0x48f741
cmp ebx, 8
jl 0x48f741
mov eax, dword [esp + 0x1c]
or byte [eax], 2
lea edi, [esi + 0x1af70]
push 0x10000
push edi
push esi
mov dword [esi + 0x6af84], ebp
mov dword [esi + 0x6af74], ebp
call dword [esi + 0xc]
add esp, 0xc
cmp eax, ebp
mov dword [esi + 0x6af90], eax
je 0x48f7ba
cmp eax, 0xffffffff
je 0x48f7ba
cmp eax, 0x106
mov dword [esi + 0x6af8c], ebp
jae 0x48f785
push esi
call fcn.0048f9d0
add esp, 4
mov dword [esi + 0x6af7c], ebp
xor eax, eax
mov edx, dword [esi + 0x6af7c]
xor ecx, ecx
mov cl, byte [edi + eax]
and edx, 0x3ff
and ecx, 0x7fff
shl edx, 5
xor ecx, edx
inc eax
cmp eax, 2
mov dword [esi + 0x6af7c], ecx
jb 0x48f78d
pop edi
pop esi
pop ebp
pop ebx
ret
mov dword [esi + 0x6af8c], 1
mov dword [esi + 0x6af90], ebp
pop edi
pop esi
pop ebp
pop ebx
ret
Function at 0x490a50
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 8]
test ecx, ecx
jne 0x490a5b
xor eax, eax
ret
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
cmp esi, 8
not eax
jb 0x490b5e
push edi
mov edi, esi
shr edi, 3
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
mov ebx, eax
shr ebx, 8
mov eax, dword [edx*4 + 0x5b7ad0]
sub esi, 8
xor eax, ebx
inc ecx
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x5b7ad0]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x5b7ad0]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x5b7ad0]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x5b7ad0]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x5b7ad0]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x5b7ad0]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x5b7ad0]
xor eax, edx
inc ecx
dec edi
jne 0x490a76
pop edi
test esi, esi
je 0x490b80
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x5b7ad0]
xor eax, edx
inc ecx
dec esi
jne 0x490b62
pop esi
pop ebx
not eax
ret
Function at 0x490d40
Capabilities:
Get file size
Parse pe header
Read file on windows

Disassembly:
sub esp, 0x50
push esi
mov esi, dword [esp + 0x58]
push esi
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, 1
je 0x490d5e
mov eax, 0x1000000
pop esi
add esp, 0x50
ret
lea eax, [esp + 0x20]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_GetFileInformationByHandle]
test eax, eax
jne 0x490d78
mov eax, 0x200
pop esi
add esp, 0x50
ret
mov eax, dword [esp + 0x20]
push ebp
mov edx, eax
xor ebp, ebp
and edx, 1
push edi
je 0x490d8c
mov ebp, 1
test al, 2
je 0x490d93
or ebp, 2
test al, 4
je 0x490d9a
or ebp, 4
mov ecx, eax
and ecx, 0x10
je 0x490da4
or ebp, 0x10
test al, 0x20
je 0x490dab
or ebp, 0x20
test ecx, ecx
je 0x490db7
or ebp, 0x40000000
jmp 0x490dbd
or ebp, 0x80000000
or ebp, 0x1000000
test edx, edx
jne 0x490dcd
or ebp, 0x800000
push ebx
push 0
push esi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, 0x28
mov dword [esp + 0x14], eax
jbe 0x490e7b
mov edi, dword [sym.imp.KERNEL32.dll_SetFilePointer]
push 0
push 0
push 0
push esi
call edi
mov ebx, dword [sym.imp.KERNEL32.dll_ReadFile]
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x6c]
push 2
push edx
push esi
call ebx
push 0
push 0
push 0x24
push esi
call edi
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x24]
push 4
push ecx
push esi
call ebx
cmp word [esp + 0x64], 0x54ad
jne 0x490e7b
mov eax, dword [esp + 0x1c]
mov ecx, dword [esp + 0x14]
lea edx, [eax + 0x34]
cmp ecx, edx
jbe 0x490e7b
push 0
push 0
push eax
push esi
call edi
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x2c]
push 4
push ecx
push esi
call ebx
mov eax, dword [esp + 0x24]
cmp eax, 0x5a4d
je 0x490e75
cmp eax, 0x454e
je 0x490e75
cmp eax, 0x454c
je 0x490e75
cmp eax, 0x4550
jne 0x490e7b
or ebp, 0x400000
mov eax, dword [esp + 0x68]
pop ebx
test eax, eax
je 0x490e86
mov dword [eax], ebp
mov eax, dword [esp + 0x68]
test eax, eax
je 0x490e94
mov edx, dword [esp + 0x10]
mov dword [eax], edx
mov esi, dword [esp + 0x6c]
mov edi, dword [sym.imp.KERNEL32.dll_FileTimeToLocalFileTime]
test esi, esi
je 0x490efe
lea eax, [esp + 0x20]
lea ecx, [esp + 0x34]
push eax
push ecx
call edi
lea edx, [esp + 0x18]
lea eax, [esp + 0x3c]
push edx
push eax
call edi
lea ecx, [esp + 0x10]
lea edx, [esp + 0x2c]
push ecx
push edx
call edi
mov eax, dword [esp + 0x24]
mov ecx, dword [esp + 0x20]
push eax
push ecx
call fcn.00490c80
mov edx, dword [esp + 0x24]
mov dword [esi], eax
mov eax, dword [esp + 0x20]
push edx
push eax
call fcn.00490c80
mov ecx, dword [esp + 0x24]
mov edx, dword [esp + 0x20]
push ecx
push edx
mov dword [esi + 4], eax
call fcn.00490c80
add esp, 0x18
mov dword [esi + 8], eax
mov esi, dword [esp + 0x70]
test esi, esi
je 0x490f41
lea eax, [esp + 0x3c]
lea ecx, [esp + 0x3c]
push eax
push ecx
call edi
lea edx, [esp + 0x64]
lea eax, [esp + 0x60]
push edx
lea ecx, [esp + 0x40]
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_FileTimeToDosDateTime]
mov edx, dword [esp + 0x60]
mov eax, dword [esp + 0x64]
and edx, 0xffff
and eax, 0xffff
shl edx, 0x10
or edx, eax
mov dword [esi], edx
pop edi
pop ebp
xor eax, eax
pop esi
add esp, 0x50
ret
Function at 0x491120
Capabilities:
Write file on windows

Disassembly:
mov edx, ecx
push ebx
push esi
push edi
mov ebx, dword [edx + 0x18]
test ebx, ebx
je 0x491170
mov edi, dword [edx + 0x1c]
mov eax, dword [esp + 0x14]
mov esi, dword [edx + 0x20]
lea ecx, [edi + eax]
cmp ecx, esi
jb 0x49114c
pop edi
pop esi
mov dword [edx + 0xc], 0x30000
xor eax, eax
pop ebx
ret 8
mov esi, dword [esp + 0x10]
mov ecx, eax
add edi, ebx
mov ebx, ecx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, ebx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov ecx, dword [edx + 0x1c]
pop edi
add ecx, eax
pop esi
mov dword [edx + 0x1c], ecx
pop ebx
ret 8
mov eax, dword [edx]
test eax, eax
je 0x491198
mov ecx, dword [esp + 0x14]
lea edx, [esp + 0x14]
push 0
push edx
mov edx, dword [esp + 0x18]
push ecx
push edx
push eax
call dword [sym.imp.KERNEL32.dll_WriteFile]
mov eax, dword [esp + 0x14]
pop edi
pop esi
pop ebx
ret 8
pop edi
pop esi
mov dword [edx + 0xc], 0x1000000
xor eax, eax
pop ebx
ret 8

Function at 0x4915c0
Capabilities:
Read file on windows

Disassembly:
push ebx
mov ebx, ecx
push ebp
push esi
mov edx, dword [ebx + 0x58]
test edx, edx
je 0x49162a
mov eax, dword [ebx + 0x60]
mov ebp, dword [ebx + 0x5c]
cmp eax, ebp
jae 0x49167b
mov ecx, dword [esp + 0x14]
sub ebp, eax
cmp ebp, ecx
jbe 0x4915e6
mov ebp, ecx
mov ecx, ebp
lea esi, [eax + edx]
mov eax, dword [esp + 0x10]
mov edx, ecx
push edi
mov edi, eax
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
push ebp
and ecx, 3
push eax
rep movsb byte es:[edi], byte [esi]
mov edx, dword [ebx + 0x60]
mov ecx, dword [ebx + 0x48]
mov eax, dword [ebx + 0x4c]
add edx, ebp
add ecx, ebp
push eax
mov dword [ebx + 0x60], edx
mov dword [ebx + 0x48], ecx
call fcn.00490a50
add esp, 0xc
mov dword [ebx + 0x4c], eax
mov eax, ebp
pop edi
pop esi
pop ebp
pop ebx
ret 8
mov eax, dword [ebx + 0x50]
test eax, eax
je 0x491674
mov edx, dword [esp + 0x14]
mov esi, dword [esp + 0x10]
lea ecx, [esp + 0x14]
push 0
push ecx
push edx
push esi
push eax
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x49167b
mov eax, dword [esp + 0x14]
mov ecx, dword [ebx + 0x48]
add ecx, eax
push eax
mov eax, dword [ebx + 0x4c]
push esi
push eax
mov dword [ebx + 0x48], ecx
call fcn.00490a50
add esp, 0xc
mov dword [ebx + 0x4c], eax
mov eax, dword [esp + 0x14]
pop esi
pop ebp
pop ebx
ret 8
mov dword [ebx + 0xc], 0x1000000
pop esi
pop ebp
xor eax, eax
pop ebx
ret 8
Function at 0x494270
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 8]
test ecx, ecx
jne 0x49427b
xor eax, eax
ret
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
cmp esi, 8
not eax
jb 0x49437e
push edi
mov edi, esi
shr edi, 3
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
mov ebx, eax
shr ebx, 8
mov eax, dword [edx*4 + 0x5b92a4]
sub esi, 8
xor eax, ebx
inc ecx
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x5b92a4]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x5b92a4]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x5b92a4]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x5b92a4]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x5b92a4]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x5b92a4]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x5b92a4]
xor eax, edx
inc ecx
dec edi
jne 0x494296
pop edi
test esi, esi
je 0x4943a0
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x5b92a4]
xor eax, edx
inc ecx
dec esi
jne 0x494382
pop esi
pop ebx
not eax
ret

Function at 0x494d30
Capabilities:
Read file on windows

Disassembly:
push ebx
mov ebx, dword [esp + 0x14]
push ebp
mov ebp, dword [esp + 0x10]
mov cl, byte [ebx]
mov eax, ebp
imul eax, dword [esp + 0x14]
test cl, cl
je 0x494d71
mov edx, dword [esp + 0xc]
lea ecx, [esp + 0xc]
push 0
push ecx
push eax
mov eax, dword [ebx + 4]
push edx
push eax
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
jne 0x494d66
mov byte [ebx + 8], 1
mov eax, dword [esp + 0xc]
xor edx, edx
div ebp
pop ebp
pop ebx
ret
mov edx, dword [ebx + 0x18]
mov ecx, dword [ebx + 0x14]
push esi
push edi
lea esi, [edx + eax]
cmp esi, ecx
jbe 0x494d84
sub ecx, edx
mov eax, ecx
mov esi, dword [ebx + 0x10]
mov edi, dword [esp + 0x14]
mov ecx, eax
add esi, edx
mov edx, ecx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
xor edx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov ecx, dword [ebx + 0x18]
pop edi
add ecx, eax
pop esi
div ebp
mov dword [ebx + 0x18], ecx
pop ebp
pop ebx
ret