joyce8/EMBER2024-capa huggingface dataset:
Function at 0x4876b0
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
xor eax, eax
mov edx, eax
mov ecx, eax
and edx, 1
shr ecx, 1
dec edx
not edx
and edx, 0xedb88320
xor edx, ecx
mov ecx, edx
shr edx, 1
and ecx, 1
dec ecx
not ecx
and ecx, 0xedb88320
xor ecx, edx
mov edx, ecx
shr ecx, 1
and edx, 1
dec edx
not edx
and edx, 0xedb88320
xor edx, ecx
mov ecx, edx
shr edx, 1
and ecx, 1
dec ecx
not ecx
and ecx, 0xedb88320
xor ecx, edx
mov edx, ecx
shr ecx, 1
and edx, 1
dec edx
not edx
and edx, 0xedb88320
xor edx, ecx
mov ecx, edx
shr edx, 1
and ecx, 1
dec ecx
not ecx
and ecx, 0xedb88320
xor ecx, edx
mov edx, ecx
shr ecx, 1
and edx, 1
dec edx
not edx
and edx, 0xedb88320
xor edx, ecx
mov ecx, edx
shr edx, 1
and ecx, 1
dec ecx
not ecx
and ecx, 0xedb88320
xor ecx, edx
mov dword [eax*4 + 0x594300], ecx
inc eax
cmp eax, 0x100
jb 0x4876b2
cmp eax, 0x800
jae 0x487783
nop
mov edx, dword [eax*4 + 0x593f00]
movzx ecx, dl
shr edx, 8
xor edx, dword [ecx*4 + 0x594300]
mov dword [eax*4 + 0x594300], edx
inc eax
cmp eax, 0x800
jb 0x487760
mov dword [0x58f908], 0x49f470
call fcn.0049f2a0
mov ecx, dword [0x58f908]
test eax, eax
mov edx, 0x49f510
cmove ecx, edx
mov dword [0x58f908], ecx
ret

Function at 0x487840
Capabilities:
Read file on windows

Disassembly:
push ebp
mov ebp, esp
push esi
push edi
mov edi, dword [ebp + 0x10]
mov esi, dword [edi]
test esi, esi
jne 0x487854
pop edi
xor eax, eax
pop esi
pop ebp
ret
push ebx
mov ebx, dword [ebp + 0xc]
mov ecx, 0x400000
mov dword [edi], 0
push 0
lea eax, [ebp + 0x10]
mov dword [ebp + 0x10], 0
push eax
cmp esi, 0x400000
mov eax, esi
cmova eax, ecx
push eax
mov eax, dword [ebp + 8]
push ebx
push dword [eax]
call dword [sym.imp.KERNEL32.dll_ReadFile]
mov ecx, dword [ebp + 0x10]
add ebx, ecx
add dword [edi], ecx
sub esi, ecx
test eax, eax
je 0x4878a9
test ecx, ecx
je 0x4878a2
mov ecx, 0x400000
test esi, esi
jne 0x487863
pop ebx
pop edi
xor eax, eax
pop esi
pop ebp
ret
pop ebx
pop edi
pop esi
pop ebp
jmp dword [sym.imp.KERNEL32.dll_GetLastError]
Function at 0x497ea0
Capabilities:
Hide graphical window

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x53accb
mov eax, dword fs:[0]
push eax
sub esp, 0x98
mov eax, dword [0x58b464]
xor eax, ebp
mov dword [ebp - 0x10], eax
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edi, ecx
mov esi, dword [ebp + 8]
lea eax, [ebp - 0xa4]
push eax
mov dword [edi + 0x10], esi
call fcn.00497540
mov esi, dword [esi + 0x6f0]
mov ecx, dword [edi + 0x10]
or esi, 0x40000080
call fcn.00450b80
test al, 1
je 0x497efe
or esi, 1
jmp 0x497f05
test al, 2
je 0x497f05
or esi, 2
movups xmm0, xmmword [ebp - 0xa4]
mov ecx, dword [edi + 0x10]
push 0
sub esp, 0x10
mov eax, esp
push 0
movups xmmword [eax], xmm0
mov eax, esi
or eax, 0x20
cmp byte [ecx + 0x6e1], 0
cmove eax, esi
push eax
mov eax, dword [ecx]
push 0
call dword [eax + 0x24]
mov ecx, eax
call fcn.00454000
push eax
mov ecx, edi
call fcn.00464430
mov ecx, dword [edi + 0x10]
call fcn.00450a00
cmp eax, 0xffffffff
je 0x497f62
mov ecx, dword [edi + 0x10]
push eax
mov eax, dword [ecx]
call dword [eax + 0x24]
mov ecx, eax
call fcn.00453a00
test eax, eax
jne 0x497f73
mov ecx, dword [edi + 0x10]
mov eax, dword [ecx]
call dword [eax + 0x24]
mov ecx, eax
call fcn.00453920
mov eax, dword [eax]
mov esi, dword [sym.imp.USER32.dll_SendMessageW]
push 1
push eax
push 0x30
push dword [edi + 4]
call esi
mov eax, dword [edi + 0x10]
push 0
push dword [eax + 0x6dc]
push 0xc5
push dword [edi + 4]
call esi
mov ecx, dword [edi + 0x10]
mov al, byte [ecx + 0x6e1]
test al, al
je 0x497fb9
movzx eax, word [ecx + 0x6e4]
push 0
push eax
push 0xcc
push dword [edi + 4]
call esi
mov ecx, dword [edi + 0x10]
lea edx, [ebp - 0x94]
push edx
mov eax, dword [ecx]
call dword [eax + 0x38]
mov ecx, eax
mov dword [ebp - 4], 0
call fcn.0044e420
push eax
push dword [edi + 4]
call dword [sym.imp.USER32.dll_SetWindowTextW]
lea ecx, [ebp - 0x94]
mov dword [ebp - 4], 0xffffffff
call fcn.0044db80
push 0
push 0
push 0xb9
push dword [edi + 4]
call esi
push 0
push 3
push 0xd3
mov ecx, edi
call fcn.00464a30
mov ecx, dword [edi + 0x10]
mov eax, dword [ecx]
mov eax, dword [eax + 0xe8]
call eax
xor ecx, ecx
cmp al, 1
sete cl
push ecx
push dword [edi + 4]
call dword [sym.imp.USER32.dll_EnableWindow]
mov eax, dword [edi + 0x10]
xor ecx, ecx
push 0
cmp byte [eax + 0x6e0], 1
sete cl
push ecx
push 0xcf
push dword [edi + 4]
call esi
push 4
push dword [edi + 4]
call dword [sym.imp.USER32.dll_ShowWindow]
push dword [edi + 4]
call dword [sym.imp.USER32.dll_SetFocus]
mov eax, dword [edi + 0x10]
push dword [edi + 4]
cmp byte [eax + 0x6e2], 0
je 0x498082
call dword [sym.imp.USER32.dll_GetWindowTextLengthW]
test eax, eax
mov ecx, 1
cmove eax, ecx
push eax
push 0
jmp 0x49808a
call dword [sym.imp.USER32.dll_GetWindowTextLengthW]
push eax
push eax
push 0xb1
push dword [edi + 4]
call esi
mov byte [edi + 0x18], 1
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 4
Function at 0x4980c0
Capabilities:
Hide graphical window

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x14
mov eax, dword [0x58b464]
xor eax, ebp
mov dword [ebp - 4], eax
push esi
push dword [ebp + 0x10]
mov esi, ecx
push dword [ebp + 0xc]
push dword [ebp + 8]
call fcn.00459e90
mov ecx, dword [esi + 0x6d8]
test ecx, ecx
je 0x498151
lea eax, [ebp - 0x14]
push eax
call fcn.00497540
lea eax, [ebp - 0x14]
push eax
call dword [sym.imp.USER32.dll_IsRectEmpty]
test eax, eax
je 0x498127
mov ecx, dword [esi + 0x6d8]
push 0
call fcn.0048dda0
push eax
call dword [sym.imp.USER32.dll_ShowWindow]
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0xc
mov eax, dword [ebp - 8]
mov edx, dword [ebp - 0x10]
sub eax, edx
mov ecx, dword [ebp - 0x14]
push 0x54
push eax
mov eax, dword [ebp - 0xc]
sub eax, ecx
push eax
push edx
push ecx
mov ecx, dword [esi + 0x6d8]
push 0
call fcn.0048dda0
push eax
call dword [sym.imp.USER32.dll_SetWindowPos]
mov ecx, dword [ebp - 4]
xor ecx, ebp
pop esi
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0xc

Function at 0x498170
Capabilities:
Get graphical window text

Disassembly:
push ebp
mov ebp, esp
push ecx
mov eax, dword [0x58b464]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
push esi
mov esi, ecx
push edi
cmp byte [esi + 0x18], 0
je 0x4981fb
cmp dword [esi + 0x10], 0
je 0x4981fb
push dword [esi + 4]
call dword [sym.imp.USER32.dll_GetWindowTextLengthW]
lea edi, [eax + 1]
lea eax, [edi + edi]
call fcn.004f1f50
mov ebx, esp
test ebx, ebx
je 0x4981fb
push edi
push ebx
push dword [esi + 4]
call dword [sym.imp.USER32.dll_GetWindowTextW]
mov ecx, dword [esi + 0x10]
push ebx
add ecx, 0x1e4
call fcn.0044dc40
mov ecx, dword [esi + 0x10]
push 1
push 0
push 0
mov eax, dword [ecx]
push 0
push str.textchanged
push ecx
call dword [eax + 0x24]
mov ecx, eax
call fcn.00457bd0
mov ecx, dword [esi + 0x10]
mov eax, dword [ecx]
call dword [eax + 0x24]
mov ecx, eax
call fcn.004542d0
test al, al
je 0x4981fb
mov ecx, dword [esi + 0x10]
call fcn.00459d60
xor eax, eax
lea esp, [ebp - 0x10]
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0x10
Function at 0x498d10
Capabilities:
Hide graphical window

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x14
mov eax, dword [0x58b464]
xor eax, ebp
mov dword [ebp - 4], eax
movups xmm0, xmmword [ebp + 8]
push esi
push dword [ebp + 0x18]
mov esi, ecx
sub esp, 0x10
mov eax, esp
movups xmmword [eax], xmm0
call fcn.0045c090
mov ecx, dword [esi + 0x6d8]
test ecx, ecx
je 0x498da7
lea eax, [ebp - 0x14]
push eax
call fcn.00497540
lea eax, [ebp - 0x14]
push eax
call dword [sym.imp.USER32.dll_IsRectEmpty]
test eax, eax
je 0x498d7d
mov ecx, dword [esi + 0x6d8]
push 0
call fcn.0048dda0
push eax
call dword [sym.imp.USER32.dll_ShowWindow]
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0x14
mov eax, dword [ebp - 8]
mov edx, dword [ebp - 0x10]
sub eax, edx
mov ecx, dword [ebp - 0x14]
push 0x54
push eax
mov eax, dword [ebp - 0xc]
sub eax, ecx
push eax
push edx
push ecx
mov ecx, dword [esi + 0x6d8]
push 0
call fcn.0048dda0
push eax
call dword [sym.imp.USER32.dll_SetWindowPos]
mov ecx, dword [ebp - 4]
xor ecx, ebp
pop esi
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0x14

Function at 0x49a150
Capabilities:
Hide graphical window

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x53bdab
mov eax, dword fs:[0]
push eax
sub esp, 0x98
mov eax, dword [0x58b464]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edi, ecx
mov eax, dword [ebp + 8]
mov dword [edi + 0x10], eax
mov dword [eax + 0x6e8], 0
cmp dword [edi + 4], 0
jne 0x49a1fb
lea eax, [ebp - 0xa4]
push eax
call fcn.00499ca0
mov ecx, dword [edi + 0x10]
movups xmm0, xmmword [ebp - 0xa4]
push 0
sub esp, 0x10
mov eax, esp
push 0
movups xmmword [eax], xmm0
mov eax, dword [ecx]
push 0x40000000
push 0
call dword [eax + 0x24]
mov ecx, eax
call fcn.00454000
push eax
mov ecx, edi
call fcn.00464430
mov esi, dword [edi + 0x10]
mov ecx, esi
call fcn.00450a00
push eax
mov eax, dword [esi]
mov ecx, esi
call dword [eax + 0x24]
mov ecx, eax
call fcn.00453ba0
push 1
push dword [eax]
push 0x30
push dword [edi + 4]
call dword [sym.imp.USER32.dll_SendMessageW]
mov ecx, dword [edi + 0x10]
lea edx, [ebp - 0x94]
push edx
mov eax, dword [ecx]
call dword [eax + 0x38]
mov ecx, eax
mov dword [ebp - 4], 0
call fcn.0044e680
lea ecx, [ebp - 0x94]
mov bl, al
call fcn.0044db80
test bl, bl
je 0x49a238
mov eax, dword [edi + 0x10]
add eax, 0x6d8
push eax
call dword [sym.imp.KERNEL32.dll_GetLocalTime]
mov eax, dword [edi + 0x10]
add eax, 0x6d8
push eax
push 0
push 0x1002
push dword [edi + 4]
call dword [sym.imp.USER32.dll_SendMessageW]
push 4
push dword [edi + 4]
call dword [sym.imp.USER32.dll_ShowWindow]
push dword [edi + 4]
call dword [sym.imp.USER32.dll_SetFocus]
mov byte [edi + 0x18], 1
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 4
Function at 0x49a290
Capabilities:
Hide graphical window

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x14
mov eax, dword [0x58b464]
xor eax, ebp
mov dword [ebp - 4], eax
push esi
push dword [ebp + 0x10]
mov esi, ecx
push dword [ebp + 0xc]
push dword [ebp + 8]
call fcn.00459e90
mov ecx, dword [esi + 0x6f0]
test ecx, ecx
je 0x49a321
lea eax, [ebp - 0x14]
push eax
call fcn.00499ca0
lea eax, [ebp - 0x14]
push eax
call dword [sym.imp.USER32.dll_IsRectEmpty]
test eax, eax
je 0x49a2f7
mov ecx, dword [esi + 0x6f0]
push 0
call fcn.0048dda0
push eax
call dword [sym.imp.USER32.dll_ShowWindow]
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0xc
mov eax, dword [ebp - 8]
mov edx, dword [ebp - 0x10]
sub eax, edx
mov ecx, dword [ebp - 0x14]
push 0x54
push eax
mov eax, dword [ebp - 0xc]
sub eax, ecx
push eax
push edx
push ecx
mov ecx, dword [esi + 0x6f0]
push 0
call fcn.0048dda0
push eax
call dword [sym.imp.USER32.dll_SetWindowPos]
mov ecx, dword [ebp - 4]
xor ecx, ebp
pop esi
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0xc

Function at 0x49a430
Capabilities:
Hide graphical window

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x14
mov eax, dword [0x58b464]
xor eax, ebp
mov dword [ebp - 4], eax
movups xmm0, xmmword [ebp + 8]
push esi
push dword [ebp + 0x18]
mov esi, ecx
sub esp, 0x10
mov eax, esp
movups xmmword [eax], xmm0
call fcn.0045c090
mov ecx, dword [esi + 0x6f0]
test ecx, ecx
je 0x49a4c7
lea eax, [ebp - 0x14]
push eax
call fcn.00499ca0
lea eax, [ebp - 0x14]
push eax
call dword [sym.imp.USER32.dll_IsRectEmpty]
test eax, eax
je 0x49a49d
mov ecx, dword [esi + 0x6f0]
push 0
call fcn.0048dda0
push eax
call dword [sym.imp.USER32.dll_ShowWindow]
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0x14
mov eax, dword [ebp - 8]
mov edx, dword [ebp - 0x10]
sub eax, edx
mov ecx, dword [ebp - 0x14]
push 0x54
push eax
mov eax, dword [ebp - 0xc]
sub eax, ecx
push eax
push edx
push ecx
mov ecx, dword [esi + 0x6f0]
push 0
call fcn.0048dda0
push eax
call dword [sym.imp.USER32.dll_SetWindowPos]
mov ecx, dword [ebp - 4]
xor ecx, ebp
pop esi
call fcn.004f16f8
mov esp, ebp
pop ebp
ret 0x14
Function at 0x49f7f0
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [ebp + 0x14]
sub esp, 0x10
mov ecx, dword [ebp + 0xc]
mov eax, dword [eax]
push ebx
xor ebx, ebx
and eax, 7
cmp ecx, 5
jae 0x49f810
xor eax, eax
pop ebx
mov esp, ebp
pop ebp
ret
add dword [ebp + 0x10], 5
lea edx, [ecx - 4]
push esi
mov esi, dword [ebp + 8]
push edi
or edi, 0xffffffff
add edx, esi
mov dword [ebp - 4], edx
add esi, ebx
mov dword [ebp + 0xc], esi
cmp esi, edx
jae 0x49f842
nop dword [eax]
mov cl, byte [esi]
and cl, 0xfe
cmp cl, 0xe8
je 0x49f83f
inc esi
cmp esi, edx
jb 0x49f830
mov dword [ebp + 0xc], esi
mov ebx, esi
sub ebx, dword [ebp + 8]
mov ecx, ebx
sub ecx, edi
cmp esi, edx
jae 0x49f96c
cmp ecx, 3
jbe 0x49f882
xor eax, eax
mov cl, byte [esi + 4]
mov edi, ebx
mov dword [ebp - 0x10], edi
test cl, cl
je 0x49f8c0
cmp cl, 0xff
je 0x49f8c0
mov edx, dword [ebp - 4]
and eax, 3
mov esi, dword [ebp + 8]
add eax, eax
mov ecx, 1
or eax, 1
add ebx, ecx
jmp 0x49f824
dec ecx
shl eax, cl
and eax, 7
je 0x49f85a
movzx ecx, byte [eax + 0x54dc6c]
mov edx, esi
sub edx, ecx
cmp byte [eax + 0x54dc64], 0
mov cl, byte [edx + 4]
je 0x49f8aa
test cl, cl
je 0x49f8aa
cmp cl, 0xff
jne 0x49f85a
mov edx, dword [ebp - 4]
and eax, 3
mov esi, dword [ebp + 8]
add eax, eax
mov edi, ebx
or eax, 1
inc ebx
jmp 0x49f824
movzx edi, cl
movzx ecx, byte [esi + 3]
shl edi, 8
or edi, ecx
movzx ecx, byte [esi + 2]
shl edi, 8
or edi, ecx
movzx ecx, byte [esi + 1]
mov esi, dword [ebp + 0x10]
shl edi, 8
or edi, ecx
cmp dword [ebp + 0x18], 0
je 0x49f8ee
lea edx, [edi + ebx]
add edx, esi
jmp 0x49f8f4
mov edx, edi
sub edx, ebx
sub edx, esi
test eax, eax
je 0x49f932
movzx edi, byte [eax + 0x54dc6c]
mov ecx, 0x18
shl edi, 3
sub ecx, edi
mov dword [ebp - 0xc], edi
mov edi, edx
shr edi, cl
mov ecx, edi
mov dword [ebp - 8], edi
test cl, cl
je 0x49f91e
cmp cl, 0xff
jne 0x49f932
mov ecx, 0x20
mov edi, 1
sub ecx, dword [ebp - 0xc]
shl edi, cl
dec edi
xor edi, edx
jmp 0x49f8e1
mov esi, dword [ebp + 0xc]
mov ecx, edx
mov edi, dword [ebp - 0x10]
shr ecx, 0x18
and cl, 1
dec cl
mov byte [esi + 1], dl
not cl
mov byte [esi + 4], cl
mov ecx, edx
shr ecx, 0x10
mov byte [esi + 3], cl
mov ecx, edx
mov edx, dword [ebp - 4]
shr ecx, 8
mov byte [esi + 2], cl
mov ecx, 5
mov esi, dword [ebp + 8]
add ebx, ecx
jmp 0x49f824
pop edi
pop esi
cmp ecx, 3
jbe 0x49f981
mov ecx, dword [ebp + 0x14]
xor eax, eax
mov dword [ecx], eax
mov eax, ebx
pop ebx
mov esp, ebp
pop ebp
ret
dec ecx
shl eax, cl
mov ecx, dword [ebp + 0x14]
and eax, 7
mov dword [ecx], eax
mov eax, ebx
pop ebx
mov esp, ebp
pop ebp
ret

Function at 0x4afdb0
Capabilities:
Initialize winsock library

Disassembly:
sub esp, 0x194
mov eax, dword [0x58b464]
xor eax, esp
mov dword [esp + 0x190], eax
lea eax, [esp]
push eax
push 0x202
call dword [sym.imp.WS2_32.dll_WSAStartup]
test eax, eax
jne 0x4afe05
mov eax, dword [esp]
cmp al, 2
jne 0x4afdff
shr eax, 8
cmp al, 2
jne 0x4afdff
call fcn.004b7330
mov ecx, dword [esp + 0x190]
xor ecx, esp
call fcn.004f16f8
add esp, 0x194
ret
call dword [sym.imp.WS2_32.dll_WSACleanup]
mov ecx, dword [esp + 0x190]
mov eax, 2
xor ecx, esp
call fcn.004f16f8
add esp, 0x194
ret
Function at 0x4b7cd0
Capabilities:
Terminate process

Disassembly:
push esi
mov esi, dword [esp + 8]
test esi, esi
je 0x4b7cec
cmp dword [esi + 0x48], 0
je 0x4b7cec
push 2
push 3
push esi
call fcn.004cebe0
add esp, 0xc
push dword [esp + 0xc]
call fcn.004c8110
add esp, 4
test esi, esi
je 0x4b7d0d
cmp dword [esi + 0x48], 0
je 0x4b7d0d
push 3
push esi
call fcn.004cec20
add esp, 8
pop esi
ret
Function at 0x4c0f40
Capabilities:
Write file on windows

Disassembly:
push ebx
push edi
mov edi, dword [esp + 0xc]
lea eax, [esp + 0x14]
push eax
push dword [esp + 0x14]
lea ebx, [edi + 0x5ac]
push 0x4000
push ebx
call fcn.004c3120
mov eax, dword [edi + 0x160]
add esp, 0x10
test eax, eax
je 0x4c0f91
cmp byte [edi + 0x85dc], 0
jne 0x4c0f91
push ebx
push 0x551dec
push 0x100
push eax
call fcn.004c3030
add esp, 0x10
mov byte [edi + 0x85dc], 1
cmp byte [edi + 0x318], 0
je 0x4c1006
push esi
mov esi, ebx
lea ecx, [esi + 1]
mov al, byte [esi]
inc esi
test al, al
jne 0x4c0fa0
sub esi, ecx
cmp esi, 0x3fff
jae 0x4c0fc1
mov byte [edi + esi + 0x5ac], 0xa
inc esi
mov byte [edi + esi + 0x5ac], al
mov eax, dword [edi + 0x1d0]
test eax, eax
je 0x4c0fdf
push dword [edi + 0x15c]
push esi
push ebx
push 0
push edi
call eax
add esp, 0x14
pop esi
pop edi
pop ebx
ret
push dword [edi + 0x158]
push 1
push 2
push 0x551dd4
call fcn.0050ef3a
push dword [edi + 0x158]
push 1
push esi
push ebx
call fcn.0050ef3a
add esp, 0x20
pop esi
pop edi
pop ebx
ret

Function at 0x4c1010
Capabilities:
Write file on windows

Disassembly:
sub esp, 0x808
mov eax, dword [0x58b464]
xor eax, esp
mov dword [esp + 0x804], eax
push edi
mov edi, dword [esp + 0x810]
test edi, edi
je 0x4c10d9
cmp byte [edi + 0x318], 0
je 0x4c10d9
push esi
lea eax, [esp + 0x81c]
push eax
push dword [esp + 0x81c]
lea eax, [esp + 0x10]
push 0x801
push eax
call fcn.004c3120
lea esi, [esp + 0x18]
add esp, 0x10
lea ecx, [esi + 1]
nop word [eax + eax]
mov al, byte [esi]
inc esi
test al, al
jne 0x4c1070
mov eax, dword [edi + 0x1d0]
sub esi, ecx
test eax, eax
je 0x4c10ae
push dword [edi + 0x15c]
lea ecx, [esp + 0xc]
push esi
push ecx
push 0
push edi
call eax
add esp, 0x14
pop esi
pop edi
mov ecx, dword [esp + 0x804]
xor ecx, esp
call fcn.004f16f8
add esp, 0x808
ret
push dword [edi + 0x158]
push 1
push 2
push 0x551dd4
call fcn.0050ef3a
push dword [edi + 0x158]
lea eax, [esp + 0x1c]
push 1
push esi
push eax
call fcn.0050ef3a
add esp, 0x20
pop esi
mov ecx, dword [esp + 0x808]
pop edi
xor ecx, esp
call fcn.004f16f8
add esp, 0x808
ret

Function at 0x4c1300
Capabilities:
Send data
Send data on socket

Disassembly:
mov eax, dword [esp + 8]
push ebx
push ebp
push esi
push edi
mov edi, dword [esp + 0x14]
push eax
push edi
mov esi, dword [edi + eax*4 + 0x168]
call fcn.004c16b0
add esp, 8
push 0
push dword [esp + 0x24]
push dword [esp + 0x24]
push esi
call dword [sym.imp.WS2_32.dll_send]
mov ebp, dword [esp + 0x24]
mov ebx, eax
mov dword [ebp], 0
cmp ebx, 0xffffffff
jne 0x4c1386
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov esi, eax
cmp esi, 0x2733
jne 0x4c135e
pop edi
pop esi
mov dword [ebp], 0x51
xor eax, eax
pop ebp
pop ebx
ret
push esi
push edi
call fcn.004b05a0
push eax
push str.Send_failure:__s
push dword [edi]
call fcn.004c0f40
mov eax, dword [edi]
add esp, 0x14
mov dword [eax + 0x85e0], esi
mov eax, ebx
mov dword [ebp], 0x37
pop edi
pop esi
pop ebp
pop ebx
ret
Function at 0x4c16b0
Capabilities:
Receive data
Receive data on socket

Disassembly:
mov ecx, dword [esp + 4]
mov edx, dword [esp + 8]
mov eax, edx
push ebx
push esi
shl eax, 4
lea esi, [ecx + 0x18c]
mov ebx, dword [ecx + edx*4 + 0x168]
add esi, eax
mov eax, dword [ecx + 0x2b8]
push edi
mov edi, dword [esi + 4]
sub edi, dword [esi + 8]
test byte [eax + 0x3c], 3
je 0x4c175e
cmp dword [ecx + edx*4 + 0x17c], 0x4c1260
jne 0x4c175e
cmp dword [esi], 0
je 0x4c16f7
test edi, edi
je 0x4c175e
push 0
push 0xffffffffffffffff
push 0xffffffffffffffff
push ebx
call fcn.004c08a0
add esp, 0x10
cmp eax, 0xffffffff
je 0x4c175e
test al, 1
je 0x4c175e
cmp dword [esi], 0
jne 0x4c1747
push 0x8000
mov dword [esi + 4], 0x8000
call dword [0x58b360]
mov edi, dword [esi + 4]
add esp, 4
mov dword [esi], eax
mov dword [esi + 8], 0
mov dword [esi + 0xc], 0
test eax, eax
jne 0x4c1747
pop edi
mov dword [esi + 4], eax
pop esi
pop ebx
ret
mov eax, dword [esi]
add eax, dword [esi + 8]
push 0
push edi
push eax
push ebx
call dword [sym.imp.WS2_32.dll_recv]
test eax, eax
jle 0x4c175e
add dword [esi + 8], eax
pop edi
pop esi
pop ebx
ret

Function at 0x4c1770
Capabilities:
Write file on windows

Disassembly:
push esi
mov esi, dword [esp + 8]
mov eax, dword [esi + 0x1d0]
test eax, eax
je 0x4c1799
push dword [esi + 0x15c]
push dword [esp + 0x18]
push dword [esp + 0x18]
push dword [esp + 0x18]
push esi
call eax
add esp, 0x14
pop esi
ret
mov eax, dword [esp + 0xc]
cmp eax, 2
ja 0x4c17d2
push dword [esi + 0x158]
lea eax, [eax + eax*2]
push 1
add eax, 0x551dd4
push 2
push eax
call fcn.0050ef3a
push dword [esi + 0x158]
push 1
push dword [esp + 0x2c]
push dword [esp + 0x2c]
call fcn.0050ef3a
add esp, 0x20
xor eax, eax
pop esi
ret

Function at 0x4c1990
Capabilities:
Receive data
Receive data on socket

Disassembly:
sub esp, 8
push esi
push edi
mov edi, dword [esp + 0x14]
mov esi, dword [edi + 0x5a0]
test esi, esi
je 0x4c19e6
mov eax, dword [edi + 0x44]
test eax, eax
jne 0x4c19af
cmp dword [edi + 0x40], eax
je 0x4c19e6
mov dword [esp + 8], esi
mov byte [esp + 0xc], 0
test eax, eax
jne 0x4c19bf
mov eax, dword [edi + 0x40]
push 0x4c2820
lea ecx, [esp + 0xc]
add eax, 0x68
push ecx
push eax
call fcn.004ccb80
add esp, 0xc
cmp byte [esp + 0xc], 0
jne 0x4c19ef
mov dword [edi + 0x5a0], 0
pop edi
or eax, 0xffffffff
pop esi
add esp, 8
ret
mov eax, dword [esp + 0x18]
test eax, eax
je 0x4c19f9
mov dword [eax], esi
cmp byte [esi + 0x1ac], 0
mov edi, dword [esi + 0x168]
je 0x4c1a1e
push esi
call fcn.0040bef0
add esp, 4
test eax, eax
jne 0x4c1a37
pop edi
or eax, 0xffffffff
pop esi
add esp, 8
ret
cmp edi, 0xffffffff
je 0x4c1a37
push 2
push 1
lea eax, [esp + 0x1c]
push eax
push edi
call dword [sym.imp.WS2_32.dll_recv]
test eax, eax
je 0x4c19e6
mov eax, edi
pop edi
pop esi
add esp, 8
ret
Function at 0x4c20a0
Capabilities:
Set socket configuration

Disassembly:
push esi
push edi
mov edi, dword [esp + 0xc]
lea eax, [esp + 0xc]
push 4
push eax
push 1
mov esi, dword [edi]
push 6
push dword [esp + 0x20]
mov dword [esp + 0x20], 1
call dword [sym.imp.WS2_32.dll_setsockopt]
test eax, eax
jns 0x4c20e8
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push edi
call fcn.004b05a0
push eax
push str.Could_not_set_TCP_NODELAY:__s_n
push esi
call fcn.004c1010
add esp, 0x14
pop edi
pop esi
ret
push str.TCP_NODELAY_set_n
push esi
call fcn.004c1010
add esp, 8
pop edi
pop esi
ret