joyce8/EMBER2024-capa huggingface dataset:
Function at 0x4d7160
Capabilities:
Create thread

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x5fd3b0
push 0x4b0292
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x28
push ebx
push esi
push edi
xor esi, esi
mov dword [ebp - 0x1c], esi
mov dword [ebp - 4], esi
push str.qsefyjil
push esi
push 1
push esi
call dword [sym.imp.KERNEL32.dll_CreateEventA]
mov dword [0x6c1a64], eax
cmp eax, esi
je 0x4d729d
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0xb7
je 0x4d729d
push 0x638844
mov eax, dword [ebp + 0x10]
push eax
call dword [sym.imp.MSVCRT.dll_fopen]
add esp, 8
mov edi, eax
mov dword [ebp - 0x34], edi
cmp edi, esi
je 0x4d7207
mov dword [ebp - 0x38], esi
mov ebx, dword [sym.imp.MSVCRT.dll_fputc]
cmp esi, dword [0x63dd08]
push edi
jae 0x4d71fc
xor ecx, ecx
mov cl, byte [esi + 0x5f692c]
xor ecx, 0x7d
push ecx
call ebx
add esp, 8
inc esi
mov dword [ebp - 0x38], esi
jmp 0x4d71dc
call dword [sym.imp.MSVCRT.dll_fclose]
add esp, 4
xor esi, esi
cmp dword [ebp + 0x14], esi
je 0x4d7223
mov edx, dword [ebp + 0x10]
push edx
mov eax, dword [ebp + 0xc]
push eax
call fcn.004d7700
add esp, 8
mov dword [ebp - 0x20], eax
cmp eax, esi
je 0x4d729d
push esi
push 0x80
push 3
push esi
push esi
push 0xc0000000
push str..hkSymbolicLink
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov dword [0x6c1a5c], eax
cmp eax, 0xffffffff
je 0x4d729d
mov dword [ebp - 0x24], esi
push esi
push esi
push esi
push 0x4d7150
push esi
push esi
call dword [sym.imp.KERNEL32.dll_CreateThread]
mov dword [ebp - 0x24], eax
cmp eax, esi
je 0x4d729d
mov dword [0x6c1a60], eax
mov ecx, dword [ebp + 8]
mov dword [ebp - 0x28], ecx
push esi
lea edx, [ebp - 0x2c]
push edx
push 4
lea eax, [ebp - 0x30]
push eax
push 8
lea ecx, [ebp - 0x28]
push ecx
push 0x8000201c
mov edx, dword [0x6c1a5c]
push edx
call dword [sym.imp.KERNEL32.dll_DeviceIoControl]
mov dword [ebp - 0x20], eax
cmp eax, esi
je 0x4d729d
mov dword [ebp - 0x1c], 1
mov dword [ebp - 4], 0xffffffff
call fcn.004d72c0
mov eax, edi
mov ecx, dword [ebp - 0x10]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0x10

Function at 0x4d72c0
Capabilities:
Delete file
Terminate thread

Disassembly:
mov edi, dword [ebp - 0x1c]
cmp edi, esi
jne 0x4d7303
mov eax, dword [0x6c1a64]
cmp eax, esi
je 0x4d72dd
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [0x6c1a64], esi
mov eax, dword [0x6c1a5c]
cmp eax, 0xffffffff
je 0x4d72f4
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [0x6c1a5c], esi
mov eax, dword [ebp - 0x24]
cmp eax, esi
je 0x4d7303
push esi
push eax
call dword [sym.imp.KERNEL32.dll_TerminateThread]
mov eax, dword [ebp + 0x10]
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
ret

Function at 0x4d74f0
Capabilities:
Log keystrokes

Disassembly:
mov eax, dword [0x6c1a64]
push 0xffffffffffffffff
push eax
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
test eax, eax
jne 0x4d7515
push 1
push eax
call fcn.004d7540
add esp, 4
push eax
call dword [sym.imp.USER32.dll_MapVirtualKeyA]
ret
xor eax, eax
ret
Function at 0x4d7520
Capabilities:
Log keystrokes

Disassembly:
push 1
push 1
call fcn.004d7540
add esp, 4
push eax
call dword [sym.imp.USER32.dll_MapVirtualKeyA]
ret

Function at 0x4d75b0
Capabilities:
Create service

Disassembly:
mov eax, dword [esp + 0xc]
push 0
push 0
push 0
mov ecx, dword [esp + 0x10]
push 0
push 0
push eax
mov eax, dword [esp + 0x20]
push 1
push 3
push 1
push 0xf01ff
push eax
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_CreateServiceA]
test eax, eax
jne 0x4d7609
push esi
mov esi, dword [sym.imp.KERNEL32.dll_GetLastError]
call esi
cmp eax, 0x431
je 0x4d7605
call esi
push eax
push str.failure:_CreateService__error_code:_u_n
push 0x6c1a68
call dword [sym.imp.MSVCRT.dll_sprintf]
add esp, 0xc
xor eax, eax
pop esi
ret
push eax
call dword [sym.imp.ADVAPI32.dll_CloseServiceHandle]
mov eax, 1
ret

Function at 0x4d76b0
Capabilities:
Stop service

Disassembly:
mov eax, dword [esp + 8]
mov ecx, dword [esp + 4]
sub esp, 0x1c
push esi
push 0xf01ff
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_OpenServiceA]
mov esi, eax
test esi, esi
jne 0x4d76d4
pop esi
add esp, 0x1c
ret
lea edx, [esp + 4]
push edi
push edx
push 1
push esi
call dword [sym.imp.ADVAPI32.dll_ControlService]
push esi
mov edi, eax
call dword [sym.imp.ADVAPI32.dll_CloseServiceHandle]
mov eax, edi
pop edi
pop esi
add esp, 0x1c
ret

Function at 0x4d9050
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 0x4d906b
cmp ebx, 8
jg 0x4d906b
mov eax, 1
jmp 0x4d906d
xor eax, eax
mov esi, dword [esp + 0x14]
push str.bad_pack_level
push eax
push esi
call fcn.004d78b0
mov eax, dword [esi + 0x6af70]
add esp, 0xc
cmp eax, ebp
mov dword [esi + 0x6af78], ebp
jne 0x4d90a4
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 + 0x5fd512]
xor ecx, ecx
mov dword [esi + 0x6af98], eax
mov cx, word [ebx*8 + 0x5fd510]
xor edx, edx
mov dword [esi + 0x6af9c], ecx
mov dx, word [ebx*8 + 0x5fd514]
xor eax, eax
mov dword [esi + 0x6afa0], edx
mov ax, word [ebx*8 + 0x5fd516]
cmp ebx, 2
mov dword [esi + 0x6af94], eax
jg 0x4d9105
mov eax, dword [esp + 0x1c]
or byte [eax], 4
jmp 0x4d9111
cmp ebx, 8
jl 0x4d9111
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 0x4d918a
cmp eax, 0xffffffff
je 0x4d918a
cmp eax, 0x106
mov dword [esi + 0x6af8c], ebp
jae 0x4d9155
push esi
call fcn.004d93a0
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 0x4d915d
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 0x4da420
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 8]
test ecx, ecx
jne 0x4da42b
xor eax, eax
ret
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
cmp esi, 8
not eax
jb 0x4da52e
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
xor eax, edx
inc ecx
dec edi
jne 0x4da446
pop edi
test esi, esi
je 0x4da550
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x5fd560]
xor eax, edx
inc ecx
dec esi
jne 0x4da532
pop esi
pop ebx
not eax
ret

Function at 0x4da560
Capabilities:
Generate random numbers using the delphi lcg
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 4]
push esi
mov esi, dword [esp + 0xc]
mov edx, dword [ecx]
and esi, 0xff
mov eax, edx
and eax, 0xff
xor eax, esi
shr edx, 8
mov eax, dword [eax*4 + 0x5fd560]
xor eax, edx
mov edx, dword [ecx + 4]
mov dword [ecx], eax
and eax, 0xff
add eax, edx
mov edx, dword [ecx + 8]
imul eax, eax, 0x8088405
inc eax
mov esi, edx
mov dword [ecx + 4], eax
and esi, 0xff
shr eax, 0x18
xor eax, esi
pop esi
shr edx, 8
mov eax, dword [eax*4 + 0x5fd560]
xor eax, edx
mov dword [ecx + 8], eax
ret
Function at 0x4da790
Capabilities:
Get file size
Parse pe header
Read file on windows

Disassembly:
sub esp, 0x44
lea eax, [esp + 0x10]
push esi
mov esi, dword [esp + 0x4c]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_GetFileInformationByHandle]
test eax, eax
jne 0x4da7b2
mov eax, 0x200
pop esi
add esp, 0x44
ret
mov eax, dword [esp + 0x14]
push ebp
mov edx, eax
xor ebp, ebp
and edx, 1
je 0x4da7c5
mov ebp, 1
test al, 2
je 0x4da7cc
or ebp, 2
test al, 4
je 0x4da7d3
or ebp, 4
mov ecx, eax
and ecx, 0x10
je 0x4da7dd
or ebp, 0x10
test al, 0x20
je 0x4da7e4
or ebp, 0x20
test ecx, ecx
je 0x4da7f0
or ebp, 0x40000000
jmp 0x4da7f6
or ebp, 0x80000000
or ebp, 0x1000000
test edx, edx
jne 0x4da806
or ebp, 0x800000
push ebx
push edi
push 0
push esi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, 0x28
mov dword [esp + 0x14], eax
jbe 0x4da8b5
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 + 0x60]
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 + 0x20]
push 4
push ecx
push esi
call ebx
cmp word [esp + 0x58], 0x54ad
jne 0x4da8b5
mov eax, dword [esp + 0x18]
mov ecx, dword [esp + 0x14]
lea edx, [eax + 0x34]
cmp ecx, edx
jbe 0x4da8b5
push 0
push 0
push eax
push esi
call edi
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x24]
push 4
push ecx
push esi
call ebx
mov eax, dword [esp + 0x1c]
cmp eax, 0x5a4d
je 0x4da8af
cmp eax, 0x454e
je 0x4da8af
cmp eax, 0x454c
je 0x4da8af
cmp eax, 0x4550
jne 0x4da8b5
or ebp, 0x400000
mov eax, dword [esp + 0x5c]
pop edi
test eax, eax
pop ebx
je 0x4da8c1
mov dword [eax], ebp
mov eax, dword [esp + 0x58]
pop ebp
test eax, eax
je 0x4da8d0
mov edx, dword [esp + 8]
mov dword [eax], edx
mov esi, dword [esp + 0x58]
test esi, esi
je 0x4da919
mov eax, dword [esp + 0x24]
mov ecx, dword [esp + 0x20]
push eax
push ecx
call fcn.004da6f0
mov dword [esi], eax
mov eax, dword [esp + 0x30]
mov dword [esi + 4], edx
mov edx, dword [esp + 0x34]
push edx
push eax
call fcn.004da6f0
mov ecx, dword [esp + 0x2c]
mov dword [esi + 8], eax
mov dword [esi + 0xc], edx
mov edx, dword [esp + 0x28]
push ecx
push edx
call fcn.004da6f0
mov dword [esi + 0x10], eax
add esp, 0x18
mov dword [esi + 0x14], edx
mov esi, dword [esp + 0x5c]
test esi, esi
je 0x4da958
mov edx, dword [esp + 0x2c]
lea eax, [esp + 0x50]
lea ecx, [esp + 0x4c]
push eax
mov eax, dword [esp + 0x2c]
push ecx
push edx
push eax
call fcn.004da720
mov ecx, dword [esp + 0x5c]
mov edx, dword [esp + 0x60]
and ecx, 0xffff
and edx, 0xffff
shl ecx, 0x10
add esp, 0x10
or ecx, edx
mov dword [esi], ecx
xor eax, eax
pop esi
add esp, 0x44
ret
Function at 0x4dab10
Capabilities:
Write file on windows

Disassembly:
push ebx
mov ebx, ecx
push ebp
mov ebp, dword [esp + 0x10]
mov al, byte [ebx + 0x2d]
push esi
mov esi, dword [esp + 0x10]
push edi
test al, al
je 0x4dab95
mov eax, dword [ebx + 0x3c]
test eax, eax
je 0x4dab41
cmp dword [ebx + 0x40], ebp
jae 0x4dab41
push eax
call sub.MFC42.DLL_operatordelete
add esp, 4
mov dword [ebx + 0x3c], 0
mov eax, dword [ebx + 0x3c]
test eax, eax
jne 0x4dab5b
lea eax, [ebp + ebp]
push eax
call sub.MFC42.DLL_operatornew
add esp, 4
mov dword [ebx + 0x3c], eax
mov dword [ebx + 0x40], ebp
mov edi, dword [ebx + 0x3c]
mov ecx, ebp
mov edx, ecx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
xor esi, esi
test ebp, ebp
jbe 0x4dab92
lea edi, [ebx + 0x30]
mov eax, dword [ebx + 0x3c]
mov cl, byte [esi + eax]
push ecx
push edi
call fcn.004da5e0
mov edx, dword [ebx + 0x3c]
add esp, 8
mov byte [esi + edx], al
inc esi
cmp esi, ebp
jb 0x4dab77
mov esi, dword [ebx + 0x3c]
mov edx, dword [ebx + 0x20]
test edx, edx
je 0x4dabdd
mov eax, dword [ebx + 0x24]
mov edi, dword [ebx + 0x28]
lea ecx, [eax + ebp]
cmp ecx, edi
jb 0x4dabb9
pop edi
pop esi
mov dword [ebx + 0x14], 0x30000
pop ebp
xor eax, eax
pop ebx
ret 8
mov ecx, ebp
lea edi, [eax + edx]
mov edx, ecx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov eax, dword [ebx + 0x24]
pop edi
add eax, ebp
pop esi
mov dword [ebx + 0x24], eax
mov eax, ebp
pop ebp
pop ebx
ret 8
mov eax, dword [ebx + 4]
test eax, eax
je 0x4dabff
lea ecx, [esp + 0x14]
push 0
push ecx
push ebp
push esi
push eax
call dword [sym.imp.KERNEL32.dll_WriteFile]
mov eax, dword [esp + 0x14]
pop edi
pop esi
pop ebp
pop ebx
ret 8
pop edi
pop esi
mov dword [ebx + 0x14], 0x1000000
pop ebp
xor eax, eax
pop ebx
ret 8
Function at 0x4db0e0
Capabilities:
Read file on windows

Disassembly:
push ebx
mov ebx, ecx
push ebp
push esi
mov edx, dword [ebx + 0x84]
test edx, edx
je 0x4db159
mov eax, dword [ebx + 0x8c]
mov ebp, dword [ebx + 0x88]
cmp eax, ebp
jae 0x4db1aa
mov ecx, dword [esp + 0x14]
sub ebp, eax
cmp ebp, ecx
jbe 0x4db10f
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 + 0x8c]
mov ecx, dword [ebx + 0x74]
mov eax, dword [ebx + 0x78]
add edx, ebp
add ecx, ebp
push eax
mov dword [ebx + 0x8c], edx
mov dword [ebx + 0x74], ecx
call fcn.004da420
add esp, 0xc
mov dword [ebx + 0x78], eax
mov eax, ebp
pop edi
pop esi
pop ebp
pop ebx
ret 8
mov eax, dword [ebx + 0x7c]
test eax, eax
je 0x4db1a3
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 0x4db1aa
mov eax, dword [esp + 0x14]
mov ecx, dword [ebx + 0x74]
add ecx, eax
push eax
mov eax, dword [ebx + 0x78]
push esi
push eax
mov dword [ebx + 0x74], ecx
call fcn.004da420
add esp, 0xc
mov dword [ebx + 0x78], eax
mov eax, dword [esp + 0x14]
pop esi
pop ebp
pop ebx
ret 8
mov dword [ebx + 0x14], 0x1000000
pop esi
pop ebp
xor eax, eax
pop ebx
ret 8
Function at 0x4de270
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 8]
test ecx, ecx
jne 0x4de27b
xor eax, eax
ret
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
cmp esi, 8
not eax
jb 0x4de37e
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
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 + 0x5fd560]
xor eax, edx
inc ecx
dec edi
jne 0x4de296
pop edi
test esi, esi
je 0x4de3a0
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x5fd560]
xor eax, edx
inc ecx
dec esi
jne 0x4de382
pop esi
pop ebx
not eax
ret

Function at 0x4de3b0
Capabilities:
Generate random numbers using the delphi lcg
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 4]
push esi
mov esi, dword [esp + 0xc]
mov edx, dword [ecx]
and esi, 0xff
mov eax, edx
and eax, 0xff
xor eax, esi
shr edx, 8
mov eax, dword [eax*4 + 0x5fd560]
xor eax, edx
mov edx, dword [ecx + 4]
mov dword [ecx], eax
and eax, 0xff
add eax, edx
mov edx, dword [ecx + 8]
imul eax, eax, 0x8088405
inc eax
mov esi, edx
mov dword [ecx + 4], eax
and esi, 0xff
shr eax, 0x18
xor eax, esi
pop esi
shr edx, 8
mov eax, dword [eax*4 + 0x5fd560]
xor eax, edx
mov dword [ecx + 8], eax
ret
Function at 0x4dee00
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 0x4dee41
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 0x4dee36
mov byte [ebx + 8], 1
mov eax, dword [esp + 0xc]
xor edx, edx
div ebp
pop ebp
pop ebx
ret
mov edx, dword [ebx + 0x1c]
mov ecx, dword [ebx + 0x18]
push esi
push edi
lea esi, [edx + eax]
cmp esi, ecx
jbe 0x4dee54
sub ecx, edx
mov eax, ecx
mov esi, dword [ebx + 0x14]
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 + 0x1c]
pop edi
add ecx, eax
pop esi
div ebp
mov dword [ebx + 0x1c], ecx
pop ebp
pop ebx
ret
Function at 0x4dfb30
Capabilities:
Resolve function by parsing pe exports

Disassembly:
sub esp, 8
push ebx
push esi
push edi
mov edi, dword [esp + 0x18]
xor ebx, ebx
cmp edi, ebx
jne 0x4dfb4c
pop edi
pop esi
mov eax, 0xffffff9a
pop ebx
add esp, 8
ret
cmp dword [edi + 0x18], ebx
jne 0x4dfb5d
pop edi
pop esi
mov eax, 0xffffff9a
pop ebx
add esp, 8
ret
cmp dword [edi + 0x7c], ebx
je 0x4dfb6b
push edi
call fcn.004e0040
add esp, 4
lea eax, [esp + 0xc]
lea ecx, [esp + 0x18]
push eax
lea edx, [esp + 0x14]
push ecx
push edx
push edi
call fcn.004df930
add esp, 0x10
test eax, eax
je 0x4dfb93
pop edi
pop esi
mov eax, 0xffffff99
pop ebx
add esp, 8
ret
push 0x84
call sub.MFC42.DLL_operatornew
mov esi, eax
add esp, 4
cmp esi, ebx
jne 0x4dfbb2
pop edi
pop esi
mov eax, 0xffffff98
pop ebx
add esp, 8
ret
push 0x4000
call sub.MFC42.DLL_operatornew
mov dword [esi], eax
mov ecx, dword [esp + 0x1c]
mov dword [esi + 0x44], ecx
mov edx, dword [esp + 0x10]
add esp, 4
cmp eax, ebx
mov dword [esi + 0x48], edx
mov dword [esi + 0x4c], ebx
jne 0x4dfbeb
push esi
call sub.MFC42.DLL_operatordelete
add esp, 4
mov eax, 0xffffff98
pop edi
pop esi
pop ebx
add esp, 8
ret
mov dword [esi + 0x40], ebx
mov edx, dword [edi + 0x34]
mov ecx, dword [edi + 0x3c]
xor eax, eax
cmp edx, ebx
mov dword [esi + 0x54], ecx
mov dword [esi + 0x50], ebx
mov edx, dword [edi + 0x34]
mov dword [esi + 0x64], edx
mov ecx, dword [edi]
sete al
mov dword [esi + 0x60], ecx
mov edx, dword [edi + 0xc]
cmp eax, ebx
mov dword [esi + 0x68], edx
mov dword [esi + 0x18], ebx
jne 0x4dfc39
lea eax, [esi + 4]
mov dword [esi + 0x24], ebx
push eax
mov dword [esi + 0x28], ebx
mov dword [esi + 0x2c], ebx
call fcn.004de690
add esp, 4
test eax, eax
jne 0x4dfc39
mov dword [esi + 0x40], 1
mov ecx, dword [edi + 0x40]
mov dword [esi + 0x58], ecx
mov edx, dword [edi + 0x44]
mov dword [esi + 0x5c], edx
mov al, byte [edi + 0x30]
and al, 1
mov byte [esi + 0x6c], al
mov ecx, dword [edi + 0x30]
shr ecx, 3
test cl, 1
je 0x4dfc66
mov edx, dword [edi + 0x38]
shr edx, 8
mov byte [esi + 0x80], dl
jmp 0x4dfc72
mov eax, dword [edi + 0x3c]
shr eax, 0x18
mov byte [esi + 0x80], al
mov cl, byte [esi + 0x6c]
push ebp
mov ebp, dword [esp + 0x20]
lea ebx, [esi + 0x70]
neg cl
sbb ecx, ecx
mov dword [ebx], 0x12345678
and ecx, 0xc
mov dword [esi + 0x74], 0x23456789
test ebp, ebp
mov dword [esi + 0x7c], ecx
mov dword [esi + 0x78], 0x34567890
je 0x4dfcb3
mov al, byte [ebp]
test al, al
je 0x4dfcb3
push eax
push ebx
call fcn.004de3b0
add esp, 8
inc ebp
jne 0x4dfc9f
mov edx, dword [edi + 0x78]
mov eax, dword [esp + 0x14]
mov dword [esi + 8], 0
pop ebp
lea ecx, [edx + eax + 0x1e]
xor eax, eax
mov dword [esi + 0x3c], ecx
mov dword [edi + 0x7c], esi
pop edi
pop esi
pop ebx
add esp, 8
ret
Function at 0x4e0210
Capabilities:
Get common file path

Disassembly:
push ecx
push ebp
mov ebp, ecx
push esi
push edi
cmp dword [ebp], 0
jne 0x4e02f2
cmp dword [ebp + 4], 0xffffffff
jne 0x4e02f2
push ebx
lea ebx, [ebp + 0x13c]
push ebx
push 0x104
call dword [sym.imp.KERNEL32.dll_GetCurrentDirectoryA]
mov edi, ebx
or ecx, 0xffffffff
xor eax, eax
repne scasb al, byte es:[edi]
not ecx
dec ecx
mov cl, byte [ecx + ebp + 0x13b]
cmp cl, 0x5c
je 0x4e0282
cmp cl, 0x2f
je 0x4e0282
mov edi, 0x6378b4
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov esi, edi
mov edx, ecx
mov edi, ebx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, edx
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov edi, dword [esp + 0x20]
mov esi, dword [esp + 0x18]
cmp edi, 1
pop ebx
jne 0x4e02ae
push 1
push 0
push 0
push esi
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp eax, 0xffffffff
jne 0x4e02ae
pop edi
pop esi
mov eax, 0x2000000
pop ebp
pop ecx
ret 0xc
mov ecx, dword [esp + 0x18]
lea eax, [esp + 0xc]
push eax
push edi
push ecx
push esi
call fcn.004debb0
add esp, 0x10
test eax, eax
jne 0x4e02d1
mov eax, dword [esp + 0xc]
pop edi
pop esi
pop ebp
pop ecx
ret 0xc
push eax
call fcn.004df180
add esp, 4
mov dword [ebp], eax
neg eax
sbb eax, eax
pop edi
and eax, 0xfffffe00
pop esi
add eax, 0x200
pop ebp
pop ecx
ret 0xc
pop edi
pop esi
mov eax, 0x1000000
pop ebp
pop ecx
ret 0xc

Function at 0x4e08f0
Capabilities:
Create directory

Disassembly:
sub esp, 0x208
push esi
mov esi, dword [esp + 0x214]
mov al, byte [esi]
test al, al
je 0x4e09c2
push ebx
push ebp
push edi
mov ebx, esi
mov ecx, esi
cmp al, 0x2f
je 0x4e0917
cmp al, 0x5c
jne 0x4e0919
mov ebx, ecx
mov al, byte [ecx + 1]
inc ecx
test al, al
jne 0x4e090f
mov ebp, dword [esp + 0x21c]
cmp ebx, esi
mov edx, ebx
je 0x4e095c
mov eax, ebx
lea edi, [esp + 0x10]
sub eax, esi
mov ecx, eax
mov edx, ecx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov byte [esp + eax + 0x10], 0
lea eax, [esp + 0x10]
push eax
push ebp
call fcn.004e08f0
add esp, 8
lea edx, [ebx + 1]
mov edi, ebp
or ecx, 0xffffffff
xor eax, eax
lea ebx, [esp + 0x114]
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov eax, ecx
mov esi, edi
mov edi, ebx
lea ebx, [esp + 0x114]
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
xor eax, eax
and ecx, 3
push eax
rep movsb byte es:[edi], byte [esi]
mov edi, edx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov esi, edi
mov edx, ecx
mov edi, ebx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, edx
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
lea eax, [esp + 0x118]
and ecx, 3
push eax
rep movsb byte es:[edi], byte [esi]
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
pop edi
pop ebp
pop ebx
pop esi
add esp, 0x208
ret