joyce8/EMBER2024-capa huggingface dataset:
Function at 0x456f81
Capabilities:
Check if file exists
Get file attributes

Disassembly:
push dword [esp + 4]
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
jne 0x456fa1
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00458e14
pop ecx
or eax, 0xffffffff
ret
test al, 1
je 0x456fc4
test byte [esp + 8], 2
je 0x456fc4
call fcn.00458e87
mov dword [eax], 0xd
call fcn.00458e90
mov dword [eax], 5
jmp 0x456f9d
xor eax, eax
ret

Function at 0x467f3d
Capabilities:
Get graphical window text

Disassembly:
push esi
mov esi, ecx
mov ecx, dword [esi + 0x38]
test ecx, ecx
jne 0x467f75
push dword [esi + 0x1c]
call dword [sym.imp.USER32.dll_GetWindowTextLengthA]
lea ecx, [eax + 1]
push ecx
mov ecx, dword [esp + 0xc]
push eax
call fcn.00465ff1
push eax
push dword [esi + 0x1c]
call dword [sym.imp.USER32.dll_GetWindowTextA]
mov ecx, dword [esp + 8]
push 0xffffffffffffffff
call fcn.00465fc9
jmp 0x467f81
mov eax, dword [ecx]
push dword [esp + 8]
call dword [eax + 0x88]
pop esi
ret 4

Function at 0x46962f
Capabilities:
Extract resource via kernel32 functions

Disassembly:
push ebx
push esi
push edi
xor edi, edi
cmp dword [esp + 0x10], edi
mov ebx, ecx
je 0x469671
call fcn.0046f0e4
mov esi, dword [eax + 0xc]
push 0xf0
push dword [esp + 0x14]
push esi
call dword [sym.imp.KERNEL32.dll_FindResourceA]
cmp eax, edi
je 0x469671
push eax
push esi
call dword [sym.imp.KERNEL32.dll_LoadResource]
cmp eax, edi
jne 0x469668
xor eax, eax
jmp 0x469679
push eax
call dword [sym.imp.KERNEL32.dll_LockResource]
mov edi, eax
push edi
mov ecx, ebx
call fcn.0046967f
pop edi
pop esi
pop ebx
ret 4

Function at 0x46f614
Capabilities:
Get thread local storage value

Disassembly:
push ebx
push esi
mov esi, ecx
lea ebx, [esi + 0x1c]
push ebx
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
cmp dword [esp + 0x10], 0
jne 0x46f642
push dword [esi]
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
test eax, eax
je 0x46f660
push dword [esp + 0xc]
mov ecx, esi
push eax
call fcn.0046f57a
jmp 0x46f660
mov eax, dword [esi + 0x14]
test eax, eax
je 0x46f660
push edi
push dword [esp + 0x10]
mov edi, dword [eax + 4]
mov ecx, esi
push eax
call fcn.0046f57a
test edi, edi
mov eax, edi
jne 0x46f64a
pop edi
push ebx
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
pop esi
pop ebx
ret 8
Function at 0x405c86
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
cmp dword [0x422a04], 0
push esi
jne 0x405cbd
xor ecx, ecx
push 8
mov eax, ecx
pop esi
mov edx, eax
and dl, 1
neg dl
sbb edx, edx
and edx, 0xedb88320
shr eax, 1
xor eax, edx
dec esi
jne 0x405c97
mov dword [ecx*4 + 0x422a00], eax
inc ecx
cmp ecx, 0x100
jl 0x405c92
mov edx, dword [esp + 0x10]
mov eax, dword [esp + 8]
test edx, edx
not eax
jbe 0x405cee
mov ecx, dword [esp + 0xc]
push edi
movzx edi, byte [ecx]
mov esi, eax
and esi, 0xff
xor esi, edi
shr eax, 8
mov esi, dword [esi*4 + 0x422a00]
xor eax, esi
inc ecx
dec edx
jne 0x405cd0
pop edi
not eax
pop esi
ret 0xc

Function at 0x5d8e55
Capabilities:
Encode data using xor

Disassembly:
mov ecx, 0x5d8b64
mov esi, esi
sub ebx, esi
inc ebx
call fcn.005d8e88
add ebx, 0x3c6933f
xor dword [edx], ecx
sub ebx, 0x9ee1ff6f
mov esi, ebx
add edx, 2
push esi
pop ebx
cmp edx, edi
jl fcn.005d8e55
add ebx, 0x43d5b9f6
ret
Function at 0x10001ccd
Capabilities:
Create thread

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x10
push VariantCopy
push 0
push dword [ebp + 8]
push 1
mov ebx, 0x9dc
call fcn.10034fd0
add esp, 0x10
mov dword [ebp - 4], eax
push dword [ebp + 0x14]
call fcn.10001d4c
mov dword [ebp - 8], eax
mov dword [ebp - 0xc], esp
push dword [ebp - 8]
push 0
push dword [ebp + 0xc]
push dword [ebp - 4]
push 0
push 0
xor eax, eax
call dword [sym.imp.KERNEL32.dll_CreateThread]
nop
nop
cmp dword [ebp - 0xc], esp
je 0x10001d41
push 0x60
push 0x402e1b3
push 6
call fcn.10033fe9
add esp, 0xc
jmp 0x10001d46
mov esp, ebp
pop ebp
ret 0x14
Function at 0x100350b0
Capabilities:
Set registry value

Disassembly:
mov eax, dword [esp + 0x28]
sub esp, 0x18
push ebx
push ebp
xor ebx, ebx
xor ebp, ebp
cmp eax, 0x80000301
ja 0x10035131
je 0x10035122
cmp eax, 0x80000101
ja 0x1003511b
je 0x10035122
cmp eax, 0x80000004
je 0x100350fc
cmp eax, 0x80000005
jne 0x10035146
mov eax, dword [esp + 0x40]
mov dword [esp + 8], 3
test eax, eax
je 0x10035193
mov ebx, dword [eax + 4]
lea ebp, [eax + 8]
jmp 0x10035193
mov eax, dword [esp + 0x40]
mov dword [esp + 8], 1
push eax
call dword [0x10047888]
mov ebp, dword [esp + 0x44]
mov ebx, eax
add esp, 4
inc ebx
jmp 0x10035193
cmp eax, 0x80000201
jne 0x10035146
mov ebx, 4
lea ebp, [esp + 0x40]
mov dword [esp + 8], ebx
jmp 0x10035193
cmp eax, 0x80000401
je 0x1003517e
cmp eax, 0x80000501
je 0x10035166
cmp eax, 0x80000601
je 0x1003514e
pop ebp
xor eax, eax
pop ebx
add esp, 0x18
ret
fld qword [esp + 0x40]
mov ebx, 4
mov dword [esp + 8], ebx
call sub.MSVCRT.dll__ftol
mov dword [esp + 0xc], eax
jmp 0x1003518f
fld dword [esp + 0x40]
mov ebx, 4
mov dword [esp + 8], ebx
call sub.MSVCRT.dll__ftol
mov dword [esp + 0xc], eax
jmp 0x1003518f
mov ecx, dword [esp + 0x40]
mov ebx, 4
mov dword [esp + 8], ebx
mov dword [esp + 0xc], ecx
lea ebp, [esp + 0xc]
mov edx, dword [esp + 0x28]
push esi
push edx
call fcn.10039400
mov esi, eax
mov eax, dword [esp + 0x3c]
push eax
mov dword [esp + 0x28], esi
mov dword [esp + 0x20], 0
call dword [0x10047888]
add esp, 8
test esi, esi
je 0x1003526c
test eax, eax
je 0x1003526c
inc eax
push edi
push eax
call sub.MSVCRT.dll_void____cdecl_operator_new_unsigned_int_
mov edi, dword [esp + 0x40]
mov edx, eax
or ecx, 0xffffffff
xor eax, eax
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
push 0x5c
mov eax, ecx
mov esi, edi
mov edi, edx
push edx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
mov dword [esp + 0x2c], edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
call sub.MSVCRT.dll_strrchr
mov esi, eax
add esp, 0xc
test esi, esi
je 0x1003520e
mov byte [esi], 0
inc esi
mov edi, dword [esp + 0x20]
mov edx, dword [esp + 0x24]
lea ecx, [esp + 0x18]
push 0
push ecx
push 0
push 0x20006
push 0
push 0
push 0
push edi
push edx
call dword [sym.imp.ADVAPI32.dll_RegCreateKeyExA]
test eax, eax
jne 0x10035262
mov eax, dword [esp + 0x10]
mov ecx, dword [esp + 0x18]
push ebx
push ebp
push eax
push 0
push esi
push ecx
call dword [sym.imp.ADVAPI32.dll_RegSetValueExA]
test eax, eax
jne 0x10035257
mov dword [esp + 0x1c], 1
mov edx, dword [esp + 0x18]
push edx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
push edi
call sub.MSVCRT.dll_void___cdecl_operator_delete_void__
add esp, 4
pop edi
mov eax, dword [esp + 0x18]
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
Function at 0x10035310
Capabilities:
Read .ini file

Disassembly:
push ebx
push ebp
push esi
push edi
push 0x400
call sub.MSVCRT.dll_void____cdecl_operator_new_unsigned_int_
mov ebx, dword [esp + 0x1c]
mov ebp, dword [esp + 0x40]
mov ecx, dword [esp + 0x28]
add esp, 4
mov esi, eax
mov eax, dword [esp + 0x30]
push ebx
push 0x400
push esi
push ebp
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_GetPrivateProfileStringA]
cmp eax, 0x3ff
jl 0x1003537a
push esi
lea edi, [eax + 0x400]
call sub.MSVCRT.dll_void___cdecl_operator_delete_void__
push edi
call sub.MSVCRT.dll_void____cdecl_operator_new_unsigned_int_
mov edx, dword [esp + 0x38]
add esp, 8
mov esi, eax
mov eax, dword [esp + 0x24]
push ebx
push edi
push esi
push ebp
push edx
push eax
call dword [sym.imp.KERNEL32.dll_GetPrivateProfileStringA]
dec edi
cmp eax, edi
jge 0x1003534a
push esi
xor edi, edi
call dword [0x10047888]
add esp, 4
test eax, eax
je 0x10035396
push eax
push esi
call fcn.10039450
add esp, 8
mov edi, eax
push esi
call sub.MSVCRT.dll_void___cdecl_operator_delete_void__
add esp, 4
mov eax, edi
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x10038c90
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebx
mov ebx, dword [esp + 8]
push ebp
mov ebp, edx
push esi
push edi
mov esi, ebp
xor edi, edi
and esi, 3
mov eax, ecx
jle 0x10038cb1
mov dl, byte [eax]
inc eax
cmp dl, bl
je 0x10038d0b
inc edi
cmp edi, esi
jl 0x10038ca5
mov edi, ebx
and edi, 0xff
mov esi, edi
shl esi, 8
or esi, edi
shl esi, 8
or esi, edi
shl esi, 8
or esi, edi
lea edi, [ecx + ebp]
cmp eax, edi
jae 0x10038d40
mov edx, dword [eax]
xor edx, esi
lea ebp, [edx - 0x1010101]
not edx
and ebp, edx
test ebp, 0x80808080
je 0x10038cfa
cmp byte [eax], bl
je 0x10038d15
cmp byte [eax + 1], bl
je 0x10038d1e
cmp byte [eax + 2], bl
je 0x10038d28
cmp byte [eax + 3], bl
je 0x10038d34
add eax, 4
cmp eax, edi
jb 0x10038cd1
pop edi
pop esi
pop ebp
or eax, 0xffffffff
pop ebx
ret 4
pop edi
sub eax, ecx
pop esi
pop ebp
dec eax
pop ebx
ret 4
pop edi
pop esi
pop ebp
sub eax, ecx
pop ebx
ret 4
pop edi
sub eax, ecx
pop esi
pop ebp
inc eax
pop ebx
ret 4
pop edi
sub eax, ecx
pop esi
pop ebp
add eax, 2
pop ebx
ret 4
pop edi
sub eax, ecx
pop esi
pop ebp
add eax, 3
pop ebx
ret 4
pop edi
pop esi
pop ebp
or eax, 0xffffffff
pop ebx
ret 4

Function at 0x401219
Capabilities:
Terminate process

Disassembly:
mov eax, dword fs:[0]
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x40301c
push 0x40109a
push eax
mov dword fs:[0], esp
sub esp, 0x10
push ebx
push esi
push edi
mov dword [ebp - 0x18], esp
push eax
fnstcw word [esp]
or word [esp], 0x300
fldcw word [esp]
add esp, 4
push 0
push 0
push 0x403028
push 0x403024
push 0x403020
call sub.CRTDLL.DLL___GetMainArgs
push dword [0x403028]
push dword [0x403024]
push dword [0x403020]
mov dword [0x403014], esp
call fcn.0040129c
add esp, 0x18
xor ecx, ecx
mov dword [ebp - 4], ecx
push eax
call sub.CRTDLL.DLL_exit
leave
ret
Function at 0x480428
Capabilities:
Encode data using xor
Resolve function by parsing pe exports

Disassembly:
pushal
mov ebx, dword [esp + 0x24]
mov ecx, ebx
add ebx, dword [ebx + 0x3c]
mov ebx, dword [ebx + 0x78]
add ebx, ecx
mov edi, dword [ebx + 0x20]
add edi, ecx
xor esi, esi
lea edx, [edi + esi*4]
mov edx, dword [edx]
add edx, ecx
xor eax, eax
rol eax, 7
xor al, byte [edx]
inc edx
cmp byte [edx], 0
jne 0x480447
cmp eax, dword [esp + 0x28]
je 0x48045e
inc esi
cmp esi, dword [ebx + 0x18]
jb 0x48043e
lea edx, [edi + esi*4]
mov edx, dword [edx]
add edx, ecx
mov dword [esp + 0x1c], edx
popal
ret 8
Function at 0x408040
Capabilities:
Enumerate files on windows

Disassembly:
push 0xffffffffffffffff
push 0x46878b
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x180
push ebx
push ebp
mov ebp, ecx
lea ecx, [esp + 8]
lea eax, [ebp + 0x40]
push eax
call fcn.0045d644
mov ecx, dword [esp + 8]
mov dword [esp + 0x190], 0
mov eax, dword [ecx - 8]
test eax, eax
je 0x4080c2
lea edx, [esp + 0x10]
push 1
push edx
lea ecx, [esp + 0x10]
call fcn.0045b017
mov eax, dword [eax]
push 0x4971c0
push eax
call fcn.0044df24
add esp, 8
lea ecx, [esp + 0x10]
test eax, eax
setne bl
call fcn.0045d8cf
test bl, bl
je 0x4080c2
push 0x4971c0
lea ecx, [esp + 0xc]
call fcn.0045dc5f
push 0x49ad18
lea ecx, [esp + 0xc]
call fcn.0045dc5f
mov ecx, dword [esp + 8]
lea eax, [esp + 0x48]
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_FindFirstFileA]
cmp eax, 0xffffffff
mov dword [esp + 0xc], eax
jne 0x4080fe
lea ecx, [esp + 8]
mov dword [esp + 0x190], eax
call fcn.0045d8cf
jmp 0x4081c9
push esi
mov esi, dword [esp + 0x19c]
push edi
mov edi, dword [sym.imp.USER32.dll_SendMessageA]
mov ebx, 0x23
test byte [esp + 0x50], 0x10
je 0x408182
lea edx, [esp + 0x7c]
push 0x49ad14
push edx
call fcn.0044df24
add esp, 8
test eax, eax
je 0x408182
lea eax, [esp + 0x7c]
push 0x49ad10
push eax
call fcn.0044df24
add esp, 8
test eax, eax
je 0x408182
mov eax, dword [ebp + 0x1c]
lea edx, [esp + 0x1c]
push edx
push 0
lea ecx, [esp + 0x84]
push 0x1100
push eax
mov dword [esp + 0x2c], esi
mov dword [esp + 0x30], 0xffff0003
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 1
mov dword [esp + 0x44], ecx
mov dword [esp + 0x34], ebx
call edi
mov edx, dword [esp + 0x14]
lea ecx, [esp + 0x50]
push ecx
push edx
call dword [sym.imp.KERNEL32.dll_FindNextFileA]
test eax, eax
jne 0x408112
mov eax, dword [esp + 0x14]
push eax
call dword [sym.imp.KERNEL32.dll_FindClose]
mov ecx, dword [ebp + 0x1c]
push esi
push 2
push 0x1102
push ecx
call edi
lea ecx, [esp + 0x10]
mov dword [esp + 0x198], 0xffffffff
call fcn.0045d8cf
pop edi
pop esi
mov ecx, dword [esp + 0x188]
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0x18c
ret 4

Function at 0x4089c0
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 0x408a22
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 0x408a30
Capabilities:
Create process on windows

Disassembly:
push 0xffffffffffffffff
push 0x46880b
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x20c
mov eax, dword [0x4a11dc]
push esi
push edi
mov edi, ecx
mov dword [esp + 8], eax
mov eax, dword [edi + 0x44]
mov dword [esp + 0x21c], 0
test eax, eax
jne 0x408b68
mov ecx, dword [edi + 0x48]
lea esi, [edi + 0x48]
mov eax, dword [ecx - 8]
test eax, eax
jne 0x408a96
lea ecx, [esp + 8]
mov dword [esp + 0x21c], 0xffffffff
call fcn.0045d8cf
xor eax, eax
jmp 0x408bdf
push str.mailto:
lea ecx, [esp + 0xc]
call fcn.0045da0c
push esi
lea ecx, [esp + 0xc]
call fcn.0045dc9b
mov ecx, dword [esp + 8]
push ebx
push ebp
mov ebp, dword [esp + 0x22c]
push ebp
push 0
push 0
push ecx
push str.open
push 0
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
mov esi, eax
cmp esi, 0x20
ja 0x408bbd
lea edx, [esp + 0x14]
mov ecx, edi
push edx
push str..htm
push closesocket
call fcn.004089c0
test eax, eax
jne 0x408bbd
mov ebx, dword [sym.imp.KERNEL32.dll_lstrcatA]
lea eax, [esp + 0x14]
push str._shellopencommand
push eax
call ebx
lea ecx, [esp + 0x14]
lea edx, [esp + 0x14]
push ecx
push edx
push closesocket
mov ecx, edi
call fcn.004089c0
test eax, eax
jne 0x408bbd
lea eax, [esp + 0x14]
push 0x49ad2c
push eax
call fcn.0044ef60
mov esi, eax
add esp, 8
test esi, esi
jne 0x408b9c
lea ecx, [esp + 0x14]
push 0x49ad28
push ecx
call fcn.0044eee0
mov esi, eax
add esp, 8
test esi, esi
jne 0x408b9c
lea edx, [esp + 0x14]
push edx
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esp + eax + 0x13]
jmp 0x408b9f
lea edx, [edi + 0x4c]
lea ecx, [esp + 8]
push edx
call fcn.0045d9bc
mov eax, dword [esp + 8]
mov ecx, dword [eax - 8]
test ecx, ecx
jne 0x408aae
lea ecx, [esp + 8]
mov dword [esp + 0x21c], 0xffffffff
call fcn.0045d8cf
xor eax, eax
jmp 0x408bdf
mov byte [esi], 0
push 0x49ad24
push esi
call ebx
mov eax, dword [esp + 0x10]
push eax
push esi
call ebx
lea ecx, [esp + 0x14]
push ebp
push ecx
call dword [sym.imp.KERNEL32.dll_WinExec]
mov esi, eax
xor edx, edx
cmp esi, 0x20
setg dl
lea ecx, [esp + 0x10]
mov esi, edx
mov dword [esp + 0x224], 0xffffffff
call fcn.0045d8cf
pop ebp
mov eax, esi
pop ebx
mov ecx, dword [esp + 0x214]
pop edi
pop esi
mov dword fs:[0], ecx
add esp, 0x218
ret 4

Function at 0x40f836
Capabilities:
Initialize winsock library

Disassembly:
sub esp, 0x190
push esi
mov esi, ecx
mov eax, dword [esi + 0x3ac]
test eax, eax
jne 0x40f85e
lea eax, [esp + 4]
push eax
push 0x101
call dword [sym.imp.WS2_32.dll_WSAStartup]
neg eax
sbb eax, eax
inc eax
mov dword [esi + 0x3ac], eax
pop esi
add esp, 0x190
ret
Function at 0x419940
Capabilities:
Log keystrokes via polling

Disassembly:
mov eax, dword [esp + 4]
push esi
push edi
mov edi, dword [sym.imp.USER32.dll_GetKeyState]
mov cl, byte [eax + 8]
and ecx, 0xff
mov esi, ecx
cmp si, 0x60
jb 0x4199ae
cmp si, 0x69
ja 0x4199ae
add esi, 0xffd0
cmp si, 0x11
je 0x41997e
push 0x11
call edi
test ax, ax
jge 0x41997e
or esi, 0x2000
cmp si, 0x10
je 0x419993
push 0x10
call edi
test ax, ax
jge 0x419993
or esi, 0x4000
cmp si, 0x12
je 0x4199a8
push 0x12
call edi
test ax, ax
jge 0x4199a8
or esi, 0x8000
mov ax, si
pop edi
pop esi
ret
cmp si, 0x6d
jne 0x4199bb
mov esi, 0xbd
jmp 0x41996f
cmp si, 0x6e
jne 0x4199c8
mov esi, 0xbe
jmp 0x41996f
cmp si, 0x6f
jne 0x419969
mov esi, 0xbf
jmp 0x41996f

Function at 0x41b060
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
push ecx
mov eax, dword [0x4b1898]
xor edx, edx
cmp eax, edx
jne 0x41b086
xor eax, eax
mov byte [eax + 0x4b1798], al
inc eax
cmp eax, 0x100
jl 0x41b06e
mov dword [0x4b1898], 1
mov eax, dword [esp + 0xc]
push ebx
mov ebx, dword [esp + 0x14]
push esi
push edi
mov ecx, 0x40
mov esi, 0x4b1798
mov edi, ebx
rep movsd dword es:[edi], dword [esi]
cmp eax, edx
mov byte [ebx + 0x100], dl
mov byte [ebx + 0x101], dl
jle 0x41b117
xor esi, esi
push ebp
mov byte [esp + 0x20], dl
xor ecx, ecx
mov edi, dword [esp + 0x20]
mov ebp, dword [esp + 0x18]
mov al, byte [esi + ebx]
and edi, 0xff
xor edx, edx
mov dl, byte [edi + ebp]
mov ebp, eax
and ebp, 0xff
add ecx, edx
add ecx, ebp
and ecx, 0x800000ff
jns 0x41b0ea
dec ecx
or ecx, 0xffffff00
inc ecx
mov byte [esp + 0x10], cl
mov ecx, dword [esp + 0x10]
and ecx, 0xff
mov dl, byte [ecx + ebx]
mov byte [esi + ebx], dl
mov byte [ecx + ebx], al
lea eax, [edi + 1]
cdq
idiv dword [esp + 0x1c]
inc esi
cmp esi, 0x100
mov byte [esp + 0x20], dl
jl 0x41b0b8
pop ebp
pop edi
pop esi
pop ebx
pop ecx
ret

Function at 0x41b190
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
mov eax, dword [ebp + 0x10]
push ebx
push esi
push edi
mov cl, byte [eax + 0x100]
mov dl, byte [eax + 0x101]
mov dword [ebp - 8], eax
mov byte [ebp - 1], cl
mov byte [ebp - 2], dl
xor ebx, ebx
mov bl, byte [ebp - 1]
xor edx, edx
mov dl, byte [ebp - 2]
mov esi, dword [ebp - 8]
mov edi, dword [ebp + 8]
xor eax, eax
mov ecx, dword [ebp + 0xc]
test ecx, ecx
jle 0x41b1e3
inc bl
mov al, byte [esi + ebx]
add dl, al
xchg byte [esi + edx], al
mov byte [esi + ebx], al
add al, byte [esi + edx]
mov al, byte [esi + eax]
xor byte [edi], al
inc edi
dec ecx
jne 0x41b1ca
mov byte [ebp - 1], bl
mov byte [ebp - 2], dl
mov eax, dword [ebp + 0x10]
mov cl, byte [ebp - 1]
mov dl, byte [ebp - 2]
pop edi
pop esi
mov byte [eax + 0x100], cl
mov byte [eax + 0x101], dl
pop ebx
mov esp, ebp
pop ebp
ret
Function at 0x421c20
Capabilities:
Enumerate pe sections

Disassembly:
sub esp, 0x18
mov eax, dword [esp + 0x1c]
push ebx
push ebp
push esi
xor esi, esi
xor ecx, ecx
mov si, word [eax + 8]
mov cx, word [eax + 4]
xor ebp, ebp
xor edx, edx
mov bp, word [eax + 0xa]
mov dx, word [eax + 6]
sub esi, ecx
sub ebp, edx
inc esi
xor ebx, ebx
inc ebp
cmp esi, ebx
mov dword [esp + 0x14], esi
jle 0x421db8
cmp ebp, ebx
jle 0x421db8
mov eax, esi
push edi
cdq
and edx, 7
add eax, edx
mov edi, eax
mov eax, esi
sar edi, 3
and eax, 0x80000007
mov dword [esp + 0x10], edi
jns 0x421c7e
dec eax
or eax, 0xfffffff8
inc eax
je 0x421c85
inc edi
mov dword [esp + 0x10], edi
mov ecx, edi
and ecx, reloc.WS2_32.dll_accept
jns 0x421c94
dec ecx
or ecx, 0xfffffffe
inc ecx
je 0x421c9b
inc edi
mov dword [esp + 0x10], edi
push 0x18
call fcn.0045d610
add esp, 4
cmp eax, ebx
je 0x421cbc
mov dword [eax], ebx
mov dword [eax + 4], ebx
mov dword [eax + 8], ebx
mov dword [eax + 0xc], ebx
mov dword [eax + 0x10], ebx
mov dword [eax + 0x14], ebx
mov ebx, eax
mov eax, edi
mov dword [esp + 0x14], ebx
imul eax, ebp
push eax
mov dword [ebx], 7
mov dword [ebx + 4], esi
mov dword [ebx + 8], ebp
mov dword [ebx + 0x14], eax
call fcn.0045d610
mov ecx, dword [ebx + 0x14]
mov edi, eax
mov edx, ecx
xor eax, eax
shr ecx, 2
mov dword [ebx + 0x10], edi
add esp, 4
rep stosd dword es:[edi], eax
mov ecx, edx
and ecx, 3
rep stosb byte es:[edi], al
mov eax, dword [esp + 0x2c]
test ebp, ebp
lea edx, [eax + 0x80]
jle 0x421dae
xor eax, eax
mov dword [esp + 0x20], ebp
mov dword [esp + 0x1c], eax
mov ebp, dword [ebx + 0x10]
xor ecx, ecx
add ebp, eax
mov dword [esp + 0x2c], ecx
test esi, esi
jle 0x421d95
mov al, byte [edx]
cmp al, 0xc0
jbe 0x421d81
and eax, 0xff
sub eax, 0xc0
inc edx
mov esi, eax
mov dword [esp + 0x24], edx
cmp esi, 1
jle 0x421d76
xor eax, eax
mov ecx, esi
mov al, byte [edx]
mov edx, ecx
mov bl, al
mov edi, ebp
mov bh, bl
dec esi
mov eax, ebx
shl eax, 0x10
mov ax, bx
mov ebx, dword [esp + 0x14]
shr ecx, 2
rep stosd dword es:[edi], eax
mov ecx, edx
mov edx, dword [esp + 0x24]
and ecx, 3
add ebp, esi
rep stosb byte es:[edi], al
mov eax, dword [esp + 0x2c]
lea ecx, [eax + esi*8]
mov esi, dword [esp + 0x18]
jmp 0x421d84
mov al, byte [edx]
mov esi, dword [esp + 0x18]
mov byte [ebp], al
jmp 0x421d84
mov byte [ebp], al
inc ebp
add ecx, 8
inc edx
cmp ecx, esi
mov dword [esp + 0x2c], ecx
jl 0x421d20
mov eax, dword [esp + 0x1c]
mov edi, dword [esp + 0x10]
mov ecx, dword [esp + 0x20]
add eax, edi
dec ecx
mov dword [esp + 0x1c], eax
mov dword [esp + 0x20], ecx
jne 0x421d11
pop edi
pop esi
mov eax, ebx
pop ebp
pop ebx
add esp, 0x18
ret
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 0x18
ret

Function at 0x423f20
Capabilities:
Initialize winsock library

Disassembly:
sub esp, 0x190
push esi
mov esi, ecx
call fcn.0045ee80
lea eax, [esp + 4]
mov dword [esi], method.CWnd.virtual_0
push eax
push 0x101
call dword [sym.imp.WS2_32.dll_WSAStartup]
neg eax
sbb eax, eax
mov dword [esi + 0x44], 0x4d12
inc eax
mov dword [esi + 0x40], 0xffffffff
mov dword [esi + 0x3c], eax
mov eax, esi
pop esi
add esp, 0x190
ret
Function at 0x4240a0
Capabilities:
Resolve dns

Disassembly:
push ebx
push esi
mov esi, dword [esp + 0x10]
test esi, esi
je 0x424127
cmp byte [esi], 0
je 0x424127
mov ebx, dword [esp + 0xc]
xor eax, eax
mov ecx, ebx
mov edx, dword [esp + 0x14]
push edx
mov dword [ecx], eax
mov dword [ecx + 4], eax
mov dword [ecx + 8], eax
mov dword [ecx + 0xc], eax
call dword [sym.imp.WS2_32.dll_htons]
push esi
mov word [ebx + 2], ax
call dword [sym.imp.WS2_32.dll_inet_addr]
cmp eax, 0xffffffff
jne 0x424115
push esi
call dword [sym.imp.WS2_32.dll_gethostbyname]
test eax, eax
je 0x424127
movsx ecx, word [eax + 0xa]
mov edx, dword [eax + 0xc]
push edi
lea edi, [ebx + 4]
mov esi, dword [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 ax, word [eax + 8]
pop edi
mov word [ebx], ax
pop esi
mov eax, 1
pop ebx
ret 0xc
mov dword [ebx + 4], eax
mov word [ebx], 2
pop esi
mov eax, 1
pop ebx
ret 0xc
pop esi
xor eax, eax
pop ebx
ret 0xc

Function at 0x424303
Capabilities:
Connect socket

Disassembly:
sub esp, 0x10
push esi
mov esi, ecx
mov eax, dword [esi]
call dword [eax + 0xbc]
test eax, eax
je 0x424372
mov ecx, dword [esp + 0x1c]
mov edx, dword [esp + 0x18]
push ecx
lea eax, [esp + 8]
push edx
push eax
mov ecx, esi
call fcn.004240a0
test eax, eax
je 0x424372
mov edx, dword [esi + 0x40]
lea ecx, [esp + 4]
push 0x10
push ecx
push edx
call dword [sym.imp.WS2_32.dll_connect]
cmp eax, 0xffffffff
je 0x42436b
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 0x40]
push 0x21
push 0x8078
push eax
push ecx
call dword [sym.imp.WS2_32.dll_WSAAsyncSelect]
cmp eax, 0xffffffff
je 0x42436b
mov eax, 1
mov dword [esi + 0x48], eax
pop esi
add esp, 0x10
ret 8
mov ecx, esi
call fcn.004242d0
xor eax, eax
pop esi
add esp, 0x10
ret 8

Function at 0x425360
Capabilities:
Access peb ldr_data

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x469d98
push eax
mov dword fs:[0], esp
sub esp, 0x28
push esi
push edi
mov edi, dword [esp + 0x44]
mov esi, ecx
test edi, edi
jne 0x425399
pop edi
xor eax, eax
pop esi
mov ecx, dword [esp + 0x28]
mov dword fs:[0], ecx
add esp, 0x34
ret 0x24
push 0x400
lea ecx, [esp + 0xc]
call fcn.00464fbd
mov eax, dword [esp + 0x40]
push 0
push edi
push eax
lea ecx, [esp + 0x14]
mov dword [esp + 0x44], 0
call fcn.00465009
mov ecx, dword [esp + 0x60]
mov edx, dword [esp + 0x5c]
mov eax, dword [esp + 0x58]
push ecx
mov ecx, dword [esp + 0x58]
push edx
mov edx, dword [esp + 0x58]
push eax
mov eax, dword [esp + 0x58]
push ecx
mov ecx, dword [esp + 0x58]
push edx
push eax
lea edx, [esp + 0x20]
push ecx
push edx
mov ecx, esi
call fcn.00425420
lea ecx, [esp + 8]
mov esi, eax
mov dword [esp + 0x38], 0xffffffff
call fcn.00465046
mov ecx, dword [esp + 0x30]
mov eax, esi
pop edi
pop esi
mov dword fs:[0], ecx
add esp, 0x34
ret 0x24