joyce8/EMBER2024-capa huggingface dataset:
Function at 0x52dd40
Capabilities:
Create process on windows

Disassembly:
push 0xffffffffffffffff
push 0x62264b
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x20c
mov eax, dword [0x12cb3b8]
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 0x52de78
mov ecx, dword [edi + 0x48]
lea esi, [edi + 0x48]
mov eax, dword [ecx - 8]
test eax, eax
jne 0x52dda6
lea ecx, [esp + 8]
mov dword [esp + 0x21c], 0xffffffff
call fcn.00614952
xor eax, eax
jmp 0x52deef
push str.mailto:
lea ecx, [esp + 0xc]
call fcn.00614adb
push esi
lea ecx, [esp + 0xc]
call fcn.00614d6a
mov ecx, dword [esp + 8]
push ebx
push ebp
mov ebp, dword [esp + 0x22c]
push ebp
push 0
push 0
push ecx
push 0x12a8f80
push 0
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
mov esi, eax
cmp esi, 0x20
ja 0x52decd
lea edx, [esp + 0x14]
mov ecx, edi
push edx
push 0x12a8f78
push closesocket
call fcn.0052dcd0
test eax, eax
jne 0x52decd
mov ebx, dword [sym.imp.KERNEL32.dll_lstrcatA]
lea eax, [esp + 0x14]
push 0x12a8f64
push eax
call ebx
lea ecx, [esp + 0x14]
lea edx, [esp + 0x14]
push ecx
push edx
push closesocket
mov ecx, edi
call fcn.0052dcd0
test eax, eax
jne 0x52decd
lea eax, [esp + 0x14]
push 0x12a8f5c
push eax
call fcn.006039a0
mov esi, eax
add esp, 8
test esi, esi
jne 0x52deac
lea ecx, [esp + 0x14]
push 0x12a8f58
push ecx
call fcn.00603920
mov esi, eax
add esp, 8
test esi, esi
jne 0x52deac
lea edx, [esp + 0x14]
push edx
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esp + eax + 0x13]
jmp 0x52deaf
lea edx, [edi + 0x4c]
lea ecx, [esp + 8]
push edx
call fcn.00614a8b
mov eax, dword [esp + 8]
mov ecx, dword [eax - 8]
test ecx, ecx
jne 0x52ddbe
lea ecx, [esp + 8]
mov dword [esp + 0x21c], 0xffffffff
call fcn.00614952
xor eax, eax
jmp 0x52deef
mov byte [esi], 0
push 0x12a8f54
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.00614952
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 0x53c8f6
Capabilities:
Initialize winsock library

Disassembly:
sub esp, 0x190
push esi
mov esi, ecx
mov eax, dword [esi + 0x3a0]
test eax, eax
jne 0x53c91e
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 + 0x3a0], eax
pop esi
add esp, 0x190
ret
Function at 0x547020
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 0x54708e
cmp si, 0x69
ja 0x54708e
add esi, 0xffd0
cmp si, 0x11
je 0x54705e
push 0x11
call edi
test ax, ax
jge 0x54705e
or esi, 0x2000
cmp si, 0x10
je 0x547073
push 0x10
call edi
test ax, ax
jge 0x547073
or esi, 0x4000
cmp si, 0x12
je 0x547088
push 0x12
call edi
test ax, ax
jge 0x547088
or esi, 0x8000
mov ax, si
pop edi
pop esi
ret
cmp si, 0x6d
jne 0x54709b
mov esi, 0xbd
jmp 0x54704f
cmp si, 0x6e
jne 0x5470a8
mov esi, 0xbe
jmp 0x54704f
cmp si, 0x6f
jne 0x547049
mov esi, 0xbf
jmp 0x54704f

Function at 0x548a80
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
push ecx
mov eax, dword [0x12dc8d8]
xor edx, edx
cmp eax, edx
jne 0x548aa6
xor eax, eax
mov byte [eax + 0x12dc7d8], al
inc eax
cmp eax, 0x100
jl 0x548a8e
mov dword [0x12dc8d8], 1
mov eax, dword [esp + 0xc]
push ebx
mov ebx, dword [esp + 0x14]
push esi
push edi
mov ecx, 0x40
mov esi, 0x12dc7d8
mov edi, ebx
rep movsd dword es:[edi], dword [esi]
cmp eax, edx
mov byte [ebx + 0x100], dl
mov byte [ebx + 0x101], dl
jle 0x548b37
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 0x548b0a
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 0x548ad8
pop ebp
pop edi
pop esi
pop ebx
pop ecx
ret

Function at 0x548bb0
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 0x548c03
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 0x548bea
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 0x55b9a0
Capabilities:
Open clipboard
Write clipboard data

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x625358
push eax
mov dword fs:[0], esp
sub esp, 0x14
push ebx
push ebp
push esi
mov esi, ecx
call fcn.005561e0
test eax, eax
je 0x55baa8
lea ecx, [esp + 0xc]
call fcn.005236e0
mov eax, dword [esp + 0x3c]
mov ecx, dword [esp + 0x38]
mov edx, dword [esp + 0x34]
push eax
mov eax, dword [esp + 0x34]
push ecx
push edx
lea ecx, [esp + 0x18]
push eax
push ecx
mov ecx, esi
mov dword [esp + 0x3c], 0
call fcn.005561e0
mov ecx, eax
call fcn.005538d0
test eax, eax
je 0x55ba8f
mov eax, dword [esp + 0x1c]
test eax, eax
mov ebp, eax
je 0x55ba8f
push eax
push 0x42
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov ebx, eax
test ebx, ebx
je 0x55ba8f
mov esi, dword [esp + 0x1c]
mov edx, dword [esp + 0x14]
neg esi
push edi
push ebx
sbb esi, esi
and esi, edx
call dword [sym.imp.KERNEL32.dll_GlobalLock]
mov ecx, ebp
mov edi, 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]
lea ecx, [esp + 0x10]
call fcn.005238e0
push ebx
call dword [sym.imp.KERNEL32.dll_GlobalUnlock]
push 0
call dword [sym.imp.USER32.dll_OpenClipboard]
test eax, eax
pop edi
jne 0x55ba71
push ebx
call dword [sym.imp.KERNEL32.dll_GlobalFree]
jmp 0x55ba8f
call dword [sym.imp.USER32.dll_EmptyClipboard]
mov eax, dword [0x12dcd30]
push ebx
and eax, 0xffff
push eax
call dword [sym.imp.USER32.dll_SetClipboardData]
call dword [sym.imp.USER32.dll_CloseClipboard]
lea ecx, [esp + 0xc]
mov dword [esp + 0x28], 0xffffffff
mov dword [esp + 0xc], 0x1285d90
call fcn.005238e0
mov ecx, dword [esp + 0x20]
pop esi
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0x20
ret 0x10
Function at 0x55bb00
Capabilities:
Open clipboard
Read clipboard data

Disassembly:
sub esp, 0xc
push ebx
push ebp
push esi
push edi
mov edi, ecx
call fcn.005561e0
test eax, eax
je 0x55bbef
mov ecx, edi
call fcn.005561e0
mov ecx, eax
call fcn.00553780
test eax, eax
jne 0x55bbef
push eax
call dword [sym.imp.USER32.dll_OpenClipboard]
test eax, eax
je 0x55bbef
mov eax, dword [0x12dcd30]
and eax, 0xffff
push eax
call dword [sym.imp.USER32.dll_GetClipboardData]
mov esi, eax
test esi, esi
jne 0x55bb62
call dword [sym.imp.USER32.dll_CloseClipboard]
pop edi
pop esi
pop ebp
pop ebx
add esp, 0xc
ret 0xc
lea ecx, [esp + 0x10]
mov ebp, dword [esp + 0x24]
push 1
push ecx
mov ecx, dword [edi + 0x44]
lea edx, [esp + 0x1c]
shr ecx, 4
lea eax, [esp + 0x20]
push edx
mov edx, dword [esp + 0x2c]
and ecx, 1
push eax
push ecx
push ebp
push edx
push esi
call dword [sym.imp.KERNEL32.dll_GlobalSize]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_GlobalLock]
push eax
mov ecx, edi
call fcn.005561e0
mov ecx, eax
call fcn.005539b0
push esi
mov ebx, eax
call dword [sym.imp.KERNEL32.dll_GlobalUnlock]
call dword [sym.imp.USER32.dll_CloseClipboard]
mov ecx, dword [esp + 0x28]
mov eax, 1
cmp ecx, eax
jne 0x55bbef
cmp ebx, eax
jne 0x55bbef
cmp dword [esp + 0x10], eax
jne 0x55bbd5
mov eax, dword [edi]
mov ecx, edi
call dword [eax + 0xcc]
mov eax, dword [esp + 0x14]
mov ecx, dword [esp + 0x18]
mov edx, dword [edi]
push eax
mov eax, dword [esp + 0x24]
push ecx
push ebp
push eax
mov ecx, edi
call dword [edx + 0xc0]
pop edi
pop esi
pop ebp
pop ebx
add esp, 0xc
ret 0xc
Function at 0x55e7c0
Capabilities:
Access peb ldr_data

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x6255e8
push eax
mov dword fs:[0], esp
sub esp, 0x14
push ebx
push ebp
mov ebp, dword [esp + 0x30]
push esi
mov ebx, ecx
push edi
mov esi, dword [ebp]
mov ecx, dword [esi + 0xc]
mov eax, dword [esi + 0x10]
dec ecx
cmp eax, ecx
jge 0x55e7f9
inc eax
mov dword [esi + 0x10], eax
jmp 0x55e90c
mov eax, dword [ebx + 0x3c]
mov ecx, dword [esi + 8]
cmp ecx, eax
jne 0x55e80d
mov eax, 0xffffffc7
jmp 0x55e90e
mov esi, dword [esi]
mov edx, dword [esi + 0x10]
mov ecx, dword [esi + 0xc]
cmp edx, ecx
jl 0x55e81e
cmp dword [esi + 8], eax
jne 0x55e80d
cmp dword [esi + 8], eax
jne 0x55e837
mov eax, dword [esi + 0x10]
mov ecx, dword [esi + 0xc]
cmp eax, ecx
jl 0x55e837
mov eax, 0xffffffc7
jmp 0x55e90e
mov eax, dword [esi + 4]
xor edi, edi
cmp eax, edi
je 0x55e84b
push eax
mov ecx, ebx
call fcn.0055dff0
mov dword [esi + 4], edi
mov dword [ebp], esi
mov ecx, dword [esi + 0x10]
inc ecx
mov dword [esi + 0x10], ecx
lea ecx, [esp + 0x10]
call fcn.005236e0
mov dword [esp + 0x2c], edi
mov edi, dword [esp + 0x3c]
test edi, edi
jne 0x55e87c
mov ecx, dword [ebx + 4]
mov edx, dword [ecx + 8]
lea ecx, [esp + 0x10]
push edx
call fcn.00523700
mov edi, eax
mov eax, dword [esi + 8]
push edi
push eax
mov ecx, ebx
call fcn.0055d760
test eax, eax
mov dword [esp + 0x38], eax
je 0x55e8af
lea ecx, [esp + 0x10]
mov dword [esp + 0x2c], 0xffffffff
mov dword [esp + 0x10], 0x1285dc0
call fcn.005238e0
mov eax, dword [esp + 0x38]
jmp 0x55e90e
mov ecx, dword [esi + 0x10]
push ecx
push edi
mov ecx, ebx
call fcn.0055e620
mov dl, byte [edi]
and dl, 1
cmp dl, 1
jne 0x55e8f3
mov ecx, dword [esp + 0x34]
push ebp
push ecx
push edi
push eax
mov ecx, ebx
call fcn.0055e640
mov esi, eax
test esi, esi
jne 0x55e923
mov edx, dword [ebp]
push eax
push edi
mov ecx, ebx
mov dword [edx + 0x10], eax
call fcn.0055e620
mov cl, byte [edi]
and cl, 1
cmp cl, 1
je 0x55e8c5
lea ecx, [esp + 0x10]
mov dword [esp + 0x2c], 0xffffffff
mov dword [esp + 0x10], 0x1285dc0
call fcn.005238e0
xor eax, eax
mov ecx, dword [esp + 0x24]
pop edi
pop esi
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0x20
ret 0xc
lea ecx, [esp + 0x10]
mov dword [esp + 0x2c], 0xffffffff
mov dword [esp + 0x10], 0x1285dc0
call fcn.005238e0
mov eax, esi
jmp 0x55e90e

Function at 0x563460
Capabilities:
Create thread

Disassembly:
push ecx
cmp dword [ecx + 0xcc], 1
je 0x5634c0
mov eax, dword [ecx + 0x1c]
test eax, eax
je 0x5634c0
mov eax, dword [ecx + 0xb0]
test eax, eax
je 0x5634c0
push esi
mov edx, 5
mov esi, dword [ecx + 0xbc]
cmp esi, edx
pop esi
je 0x5634c0
mov dword [ecx + 0xb4], eax
mov dword [ecx + 0x94], 0
mov dword [ecx + 0xbc], edx
lea eax, [esp]
push eax
push 0
push ecx
push 0x563500
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateThread]
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
pop ecx
ret
Function at 0x5a40e0
Capabilities:
Create process on windows

Disassembly:
sub esp, 0x208
push ebx
push ebp
push esi
push edi
mov esi, ecx
push 0
call fcn.005aa4f0
mov ebp, dword [esp + 0x220]
mov eax, dword [esp + 0x21c]
push ebp
push 0
push 0
push eax
push 0x12b9730
push 0
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
mov edi, eax
cmp edi, 0x20
ja 0x5a41d9
lea ecx, [esp + 0x10]
push ecx
push str..htm
push closesocket
mov ecx, esi
call fcn.0052dcd0
test eax, eax
jne 0x5a41d9
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.0052dcd0
test eax, eax
jne 0x5a41d9
lea edx, [esp + 0x10]
push 0x12b970c
push edx
call fcn.006039a0
mov esi, eax
add esp, 8
test esi, esi
jne 0x5a41aa
lea eax, [esp + 0x10]
push 0x12b9708
push eax
call fcn.006039a0
mov esi, eax
add esp, 8
test esi, esi
jne 0x5a41aa
lea ecx, [esp + 0x10]
push ecx
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esp + eax + 0xf]
jmp 0x5a41ad
mov byte [esi], 0
push 0x12b8ed0
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 0x5aa430
Capabilities:
Get common file path

Disassembly:
push 0xffffffffffffffff
push 0x627958
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 0x5aa4e0
mov eax, dword [0x12cb3b8]
push esi
mov dword [esp + 8], eax
push 0x104
push 0x104
lea ecx, [esp + 0x10]
mov dword [esp + 0x1c], 0
call fcn.00614d82
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push 0xffffffffffffffff
lea ecx, [esp + 0xc]
call fcn.00614dd1
push str.winhlp32.exe
lea ecx, [esp + 0xc]
call fcn.00614d2e
mov ecx, dword [esp + 8]
push ecx
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov esi, eax
test esi, esi
je 0x5aa4c7
push 0x6a
push esi
call dword [sym.imp.USER32.dll_LoadCursorA]
test eax, eax
je 0x5aa4c7
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.00614952
pop esi
mov ecx, dword [esp + 8]
pop edi
mov dword fs:[0], ecx
add esp, 0x10
ret
Function at 0x5ad5e0
Capabilities:
Get number of processors

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x627de0
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 0x5ad787
mov ecx, dword [0x12cb3b8]
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 0x5ad6dc
lea eax, [esp + 0x10]
lea ecx, [esp + 0x14]
push eax
push edi
push ecx
mov ecx, esi
call fcn.005ac300
push eax
lea ecx, [esp + 0x10]
mov byte [esp + 0x2c], 2
call fcn.00614a8b
lea ecx, [esp + 0x14]
mov byte [esp + 0x28], bl
call fcn.00614952
push ecx
mov ecx, esp
mov dword [esp + 0x20], esp
push 0x12b8ed0
call fcn.006149c0
lea edx, [esp + 0x14]
push 0x3d
push edx
lea eax, [esp + 0x24]
push edi
push eax
mov ecx, esi
call fcn.005ac6c0
push eax
lea ecx, [esp + 0x34]
mov byte [esp + 0x2c], 3
call fcn.00614a8b
lea ecx, [esp + 0x18]
mov byte [esp + 0x28], bl
call fcn.00614952
lea ecx, [esp + 0xc]
call fcn.00614e66
mov ecx, dword [esp + 0xc]
push 0x12b990c
push ecx
call fcn.00602724
add esp, 8
test eax, eax
je 0x5ad704
mov edx, dword [edi]
mov ecx, dword [esp + 0x10]
mov eax, dword [edx - 8]
cmp ecx, eax
jl 0x5ad63d
mov esi, dword [esp + 0x34]
lea ecx, [esp + 0x30]
mov byte [esp + 0x28], 0
call fcn.00614952
lea ecx, [esp + 0xc]
mov dword [esp + 0x28], 0xffffffff
call fcn.00614952
jmp 0x5ad78b
lea eax, [esp + 0x30]
mov ecx, esi
push eax
call fcn.005ad380
test eax, eax
push 0
je 0x5ad76f
lea ecx, [esp + 0x34]
push 0x64
push ecx
mov ecx, esi
call fcn.005aba20
mov ecx, dword [esp + 0x3c]
test ecx, ecx
je 0x5ad755
cmp eax, 0x64
jg 0x5ad743
mov edx, dword [esp + 0x38]
push eax
push 0x64
push edx
call dword [sym.imp.KERNEL32.dll_MulDiv]
mov esi, eax
jmp 0x5ad6e0
push 0x64
push eax
mov eax, dword [esp + 0x40]
push eax
call dword [sym.imp.KERNEL32.dll_MulDiv]
mov esi, eax
jmp 0x5ad6e0
cmp eax, 0x64
jge 0x5ad6dc
mov ecx, dword [esp + 0x34]
push 0x64
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_MulDiv]
mov esi, eax
jmp 0x5ad6e0
mov edx, dword [esp + 0x3c]
lea eax, [esp + 0x34]
push edx
push eax
mov ecx, esi
call fcn.005aba20
mov esi, eax
jmp 0x5ad6e0
mov esi, dword [esp + 0x34]
mov eax, dword [esp + 0x38]
cmp esi, eax
jl 0x5ad795
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 0x5b86e0
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 8]
test ecx, ecx
jne 0x5b86eb
xor eax, eax
ret
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
cmp esi, 8
not eax
jb 0x5b87ee
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 + 0x128d224]
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 + 0x128d224]
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 + 0x128d224]
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 + 0x128d224]
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 + 0x128d224]
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 + 0x128d224]
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 + 0x128d224]
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 + 0x128d224]
xor eax, edx
inc ecx
dec edi
jne 0x5b8706
pop edi
test esi, esi
je 0x5b8810
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x128d224]
xor eax, edx
inc ecx
dec esi
jne 0x5b87f2
pop esi
pop ebx
not eax
ret

Function at 0x5b9070
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 0x5b90b1
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 0x5b90a6
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 0x5b90c4
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
Function at 0x5cb1f0
Capabilities:
Get socket status
Send data
Send data on socket

Disassembly:
sub esp, 0x10c
mov ecx, dword [esp + 0x114]
push esi
mov esi, dword [esp + 0x114]
mov dword [esp + 0xc], 1
test ecx, ecx
mov dword [esp + 0x10], esi
jne 0x5cb223
push ecx
lea eax, [esp + 0x10]
push ecx
push eax
push ecx
lea ecx, [esi + 1]
push ecx
jmp 0x5cb27b
cmp ecx, 0xffffffff
jne 0x5cb23a
mov dword [esp + 4], 0
mov dword [esp + 8], 0
jmp 0x5cb269
mov eax, 0x10624dd3
imul ecx
sar edx, 6
mov eax, edx
shr eax, 0x1f
add edx, eax
mov eax, ecx
mov dword [esp + 4], edx
mov ecx, 0x3e8
cdq
idiv ecx
lea eax, [edx + edx*4]
lea eax, [eax + eax*4]
lea edx, [eax + eax*4]
shl edx, 3
mov dword [esp + 8], edx
lea eax, [esp + 4]
lea ecx, [esp + 0xc]
push eax
push 0
push ecx
lea edx, [esi + 1]
push 0
push edx
call sub.WS2_32.dll_select
test eax, eax
jge 0x5cb291
mov eax, 0xfffffffb
pop esi
add esp, 0x10c
ret
jne 0x5cb2a0
mov eax, 0xfffffffa
pop esi
add esp, 0x10c
ret
lea eax, [esp + 0xc]
push eax
push esi
call sub.WS2_32.dll___WSAFDIsSet
test eax, eax
je 0x5cb2f9
mov ecx, dword [esp + 0x11c]
mov edx, dword [esp + 0x120]
push 0
push ecx
push edx
push esi
call sub.WS2_32.dll_send
test eax, eax
jg 0x5cb2e1
call fcn.005ca7d0
push eax
call fcn.005cade0
add esp, 4
pop esi
add esp, 0x10c
ret
mov ecx, dword [0x1320778]
test ecx, ecx
je 0x5cb2fe
mov edx, dword [ecx]
pop esi
add edx, eax
mov dword [ecx], edx
add esp, 0x10c
ret
mov eax, 0xfffffff7
pop esi
add esp, 0x10c
ret

Function at 0x5cb310
Capabilities:
Resolve dns

Disassembly:
mov eax, dword [esp + 4]
push eax
call sub.WS2_32.dll_gethostbyname
test eax, eax
jne 0x5cb31f
ret
mov ecx, dword [eax + 0xc]
push esi
push edi
mov edx, dword [ecx]
mov eax, dword [edx]
push eax
call sub.WS2_32.dll_inet_ntoa
mov edi, eax
or ecx, 0xffffffff
xor eax, eax
repne scasb al, byte es:[edi]
mov eax, dword [esp + 0x10]
not ecx
sub edi, ecx
mov edx, ecx
mov esi, edi
mov edi, eax
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
pop edi
pop esi
ret

Function at 0x5cb4b0
Capabilities:
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x14
mov edx, dword [esp + 0x18]
lea eax, [esp]
lea ecx, [esp + 4]
push eax
push ecx
push edx
mov dword [esp + 0xc], 0x10
call sub.WS2_32.dll_getsockname
test eax, eax
jne 0x5cb4e6
mov eax, dword [esp + 6]
push eax
call sub.WS2_32.dll_ntohs
and eax, 0xffff
add esp, 0x14
ret
or eax, 0xffffffff
add esp, 0x14
ret

Function at 0x5cb4f0
Capabilities:
Get hostname
Resolve dns

Disassembly:
sub esp, 0x64
lea eax, [esp]
push esi
push 0x64
push eax
xor esi, esi
call sub.WS2_32.dll_gethostname
lea ecx, [esp + 4]
push ecx
call sub.WS2_32.dll_gethostbyname
test eax, eax
jne 0x5cb515
pop esi
add esp, 0x64
ret
mov edx, dword [eax + 0xc]
mov eax, dword [edx]
test eax, eax
je 0x5cb528
mov eax, dword [eax]
push eax
call sub.WS2_32.dll_inet_ntoa
mov esi, eax
mov eax, esi
pop esi
add esp, 0x64
ret
Function at 0x5cb850
Capabilities:
Terminate thread

Disassembly:
mov eax, dword [esp + 4]
push esi
mov esi, dword [esp + 0xc]
push esi
push eax
call fcn.005cb980
add esp, 8
test eax, eax
jne 0x5cb869
pop esi
ret
mov eax, dword [esi + 0x8c]
test eax, eax
jne 0x5cb875
pop esi
ret
push 0
push eax
call dword [sym.imp.KERNEL32.dll_TerminateThread]
mov dword [esi + 0x8c], 0
pop esi
ret

Function at 0x5cb890
Capabilities:
Terminate thread

Disassembly:
push esi
push edi
mov edi, dword [esp + 0x10]
mov eax, dword [edi + 0x38c]
mov esi, dword [edi]
push eax
call fcn.005dc9b0
add esp, 4
test esi, esi
je 0x5cb91a
mov edi, dword [esp + 0xc]
push ebp
mov ebp, dword [sym.imp.KERNEL32.dll_TerminateThread]
mov eax, dword [esi + 0x8c]
test eax, eax
je 0x5cb90e
cmp dword [esi + 8], 0xffffffff
je 0x5cb90e
push 0
push eax
call ebp
mov dword [esi + 0x8c], 0
mov ecx, dword [edi + 0xa0]
test ecx, ecx
je 0x5cb8fc
mov eax, dword [esi + 0x1c]
push 0
lea edx, [eax*8]
sub edx, eax
lea eax, [ecx + edx*4]
mov ecx, dword [ecx + edx*4 + 0x14]
mov edx, dword [eax + 0xc]
add ecx, edx
push ecx
jmp 0x5cb900
push 0
push 0
push esi
push 8
push 0x15
push edi
call fcn.005c7500
add esp, 0x18
mov esi, dword [esi + 0x48]
test esi, esi
jne 0x5cb8b6
mov edi, dword [esp + 0x14]
pop ebp
mov edx, dword [edi + 0x38c]
push edx
call fcn.005dc9c0
add esp, 4
pop edi
pop esi
ret

Function at 0x5ccd40
Capabilities:
Encode data using xor

Disassembly:
mov eax, dword [esp + 8]
mov ecx, dword [esp + 4]
mov edx, eax
dec eax
test edx, edx
je 0x5ccd7c
push ebx
push esi
lea esi, [eax + 1]
mov eax, dword [esp + 0x14]
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, ah
mov ax, word [edx*2 + 0x128d698]
xor ax, bx
inc ecx
dec esi
jne 0x5ccd58
pop esi
pop ebx
ret
mov ax, word [esp + 0xc]
ret