joyce8/EMBER2024-capa huggingface dataset:
Function at 0x4ead30
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
xor edx, edx
mov ecx, edx
mov eax, edx
and ecx, 1
shr eax, 1
neg ecx
and ecx, 0xedb88320
xor ecx, eax
mov eax, ecx
shr ecx, 1
and eax, 1
neg eax
and eax, 0xedb88320
xor eax, ecx
mov ecx, eax
shr eax, 1
and ecx, 1
neg ecx
and ecx, 0xedb88320
xor ecx, eax
mov eax, ecx
shr ecx, 1
and eax, 1
neg eax
and eax, 0xedb88320
xor eax, ecx
mov ecx, eax
shr eax, 1
and ecx, 1
neg ecx
and ecx, 0xedb88320
xor ecx, eax
mov eax, ecx
shr ecx, 1
and eax, 1
neg eax
and eax, 0xedb88320
xor eax, ecx
mov ecx, eax
shr eax, 1
and ecx, 1
neg ecx
and ecx, 0xedb88320
xor ecx, eax
mov eax, ecx
shr ecx, 1
and eax, 1
neg eax
and eax, 0xedb88320
xor eax, ecx
mov dword [edx*4 + 0x72b840], eax
inc edx
cmp edx, 0x100
jb 0x4ead32
push esi
mov eax, 0x72b844
mov esi, 0x1c0
mov edx, dword [eax - 4]
lea eax, [eax + 0x10]
movzx ecx, dl
shr edx, 8
xor edx, dword [ecx*4 + 0x72b840]
mov dword [eax + 0x3ec], edx
mov edx, dword [eax - 0x10]
movzx ecx, dl
shr edx, 8
xor edx, dword [ecx*4 + 0x72b840]
mov dword [eax + 0x3f0], edx
mov edx, dword [eax - 0xc]
movzx ecx, dl
shr edx, 8
xor edx, dword [ecx*4 + 0x72b840]
mov dword [eax + 0x3f4], edx
mov edx, dword [eax - 8]
movzx ecx, dl
shr edx, 8
xor edx, dword [ecx*4 + 0x72b840]
mov dword [eax + 0x3f8], edx
sub esi, 1
jne 0x4eadd7
mov dword [0x72b830], 0x4ec390
mov dword [0x72b828], 0x4ec390
mov dword [0x72b82c], 0x4ec430
call fcn.004ec1a0
mov ecx, dword [0x72b828]
test eax, eax
mov edx, 0x4ec430
cmove ecx, edx
mov dword [0x72b828], ecx
pop esi
ret

Function at 0x4eaf90
Capabilities:
Read file on windows

Disassembly:
push ebp
mov ebp, esp
push ebx
push esi
push edi
mov edi, dword [ebp + 0x10]
mov esi, dword [edi]
test esi, esi
je 0x4eafe3
mov ebx, dword [ebp + 0xc]
mov dword [edi], 0
push 0
mov ecx, 0x400000
mov dword [ebp + 0x10], 0
lea eax, [ebp + 0x10]
cmp esi, ecx
push eax
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 0x4eafea
test ecx, ecx
je 0x4eafe3
test esi, esi
jne 0x4eafa8
pop edi
pop esi
xor eax, eax
pop ebx
pop ebp
ret
pop edi
pop esi
pop ebx
pop ebp
jmp dword [sym.imp.KERNEL32.dll_GetLastError]

Function at 0x4eb000
Capabilities:
Write file on windows

Disassembly:
push ebp
mov ebp, esp
push ebx
push esi
push edi
mov edi, dword [ebp + 0x10]
mov esi, dword [edi]
test esi, esi
je 0x4eb053
mov ebx, dword [ebp + 0xc]
mov dword [edi], 0
push 0
mov ecx, 0x400000
mov dword [ebp + 0x10], 0
lea eax, [ebp + 0x10]
cmp esi, ecx
push eax
mov eax, esi
cmova eax, ecx
push eax
mov eax, dword [ebp + 8]
push ebx
push dword [eax]
call dword [sym.imp.KERNEL32.dll_WriteFile]
mov ecx, dword [ebp + 0x10]
add ebx, ecx
add dword [edi], ecx
sub esi, ecx
test eax, eax
je 0x4eb05a
test ecx, ecx
je 0x4eb053
test esi, esi
jne 0x4eb018
pop edi
pop esi
xor eax, eax
pop ebx
pop ebp
ret
pop edi
pop esi
pop ebx
pop ebp
jmp dword [sym.imp.KERNEL32.dll_GetLastError]
Function at 0x4ec860
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
push ecx
mov eax, dword [ebp + 0xc]
push esi
mov esi, dword [ebp + 0x14]
push edi
xor edi, edi
mov esi, dword [esi]
and esi, 7
cmp eax, 5
jae 0x4ec880
pop edi
xor eax, eax
pop esi
mov esp, ebp
pop ebp
ret
add dword [ebp + 0x10], 5
mov ecx, dword [ebp + 8]
push ebx
lea ebx, [eax - 4]
add ebx, ecx
mov dword [ebp - 4], ebx
lea eax, [edi + ecx]
cmp eax, ebx
jae 0x4ec8a9
mov cl, byte [eax]
and cl, 0xfe
cmp cl, 0xe8
je 0x4ec8a6
inc eax
cmp eax, ebx
jb 0x4ec897
mov ecx, dword [ebp + 8]
mov edx, eax
sub edx, edi
mov edi, eax
sub edx, ecx
sub edi, ecx
cmp eax, ebx
jae 0x4ec9ad
cmp edx, 2
jbe 0x4ec932
xor esi, esi
movzx edx, byte [eax + 4]
lea ecx, [edx + 1]
test cl, 0xfe
jne 0x4ec999
movzx ecx, byte [eax + 3]
mov ebx, dword [ebp + 0x10]
shl edx, 8
add ebx, edi
or edx, ecx
movzx ecx, byte [eax + 2]
shl edx, 8
or edx, ecx
movzx ecx, byte [eax + 1]
shl edx, 8
or edx, ecx
mov ecx, edx
add edx, ebx
sub ecx, ebx
cmp dword [ebp + 0x18], 0
cmove edx, ecx
mov dword [ebp + 0xc], edx
mov ebx, edx
test esi, esi
je 0x4ec969
and esi, 6
shl esi, 2
mov ecx, esi
shr edx, cl
inc edx
test dl, 0xfe
jne 0x4ec967
mov ebx, 0x100
shl ebx, cl
mov ecx, dword [ebp + 0x10]
dec ebx
xor ebx, dword [ebp + 0xc]
add ecx, edi
cmp dword [ebp + 0x18], 0
je 0x4ec965
add ebx, ecx
jmp 0x4ec967
mov ecx, edx
shr esi, cl
test esi, esi
je 0x4ec8c2
cmp esi, 4
ja 0x4ec957
cmp esi, 3
je 0x4ec957
mov ecx, esi
shr ecx, 1
movzx ecx, byte [ecx + eax + 1]
inc ecx
test cl, 0xfe
jne 0x4ec8c2
mov ecx, dword [ebp + 8]
or esi, 8
shr esi, 1
inc edi
jmp 0x4ec890
sub ebx, ecx
xor esi, esi
mov ecx, ebx
mov byte [eax + 1], bl
shr ecx, 8
mov byte [eax + 2], cl
mov ecx, ebx
shr ebx, 0x18
and bl, 1
shr ecx, 0x10
neg bl
mov byte [eax + 3], cl
mov ecx, dword [ebp + 8]
mov byte [eax + 4], bl
mov eax, 5
mov ebx, dword [ebp - 4]
add edi, eax
jmp 0x4ec890
mov ecx, dword [ebp + 8]
or esi, 8
mov eax, 1
shr esi, 1
add edi, eax
jmp 0x4ec890
mov eax, dword [ebp + 0x14]
mov ecx, edx
shr esi, cl
xor ecx, ecx
cmp edx, 2
pop ebx
cmovbe ecx, esi
mov dword [eax], ecx
mov eax, edi
pop edi
pop esi
mov esp, ebp
pop ebp
ret

Function at 0x4f135c
Capabilities:
Create thread

Disassembly:
push ebp
mov ebp, esp
push dword [ebp + 0x1c]
push dword [ebp + 0x18]
push dword [ebp + 0x14]
push dword [ebp + 0x10]
push dword [ebp + 0xc]
push dword [ebp + 8]
call dword [sym.imp.KERNEL32.dll_CreateThread]
pop ebp
ret

Function at 0x5283d7
Capabilities:
Read file on windows

Disassembly:
mov edi, edi
push ebp
mov ebp, esp
pop ebp
jmp fcn.0052809a

Function at 0x5283e2
Capabilities:
Read file on windows

Disassembly:
mov edi, edi
push ebp
mov ebp, esp
pop ebp
jmp fcn.0052821b

Function at 0x52c304
Capabilities:
Set environment variable

Disassembly:
mov edi, edi
push ebp
mov ebp, esp
pop ebp
jmp fcn.0052bfc4
Function at 0x53bdf0
Capabilities:
Encode data using xor
Hash data using djb2

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [ebp + 0xc]
xor edx, edx
push ebx
push esi
mov esi, dword [ebp + 8]
mov ebx, 0x1505
add eax, esi
mov ecx, eax
sub ecx, esi
push edi
xor edi, edi
cmp esi, eax
cmova ecx, edx
mov dword [ebp + 8], ecx
test ecx, ecx
je 0x53be39
mov al, byte [esi]
push eax
call fcn.0054b1b0
movsx ecx, al
lea esi, [esi + 1]
mov eax, ebx
inc edi
shl eax, 5
add esp, 4
add eax, ebx
xor ecx, eax
mov ebx, ecx
cmp edi, dword [ebp + 8]
jb 0x53be17
pop edi
pop esi
movzx eax, bl
pop ebx
pop ebp
ret
Function at 0x546350
Capabilities:
Write file on windows

Disassembly:
push ebp
mov ebp, esp
push edi
mov edi, dword [ebp + 8]
cmp byte [edi + 0x6f2], 0
je 0x5463d3
cmp dword [edi + 0x1b0], 0
je 0x54639d
push esi
push 1
push edi
call fcn.005380c0
push dword [edi + 0x14c]
mov eax, dword [edi + 0x1b0]
push dword [ebp + 0x14]
push dword [ebp + 0x10]
push dword [ebp + 0xc]
push edi
call eax
push 0
push edi
mov esi, eax
call fcn.005380c0
add esp, 0x24
mov eax, esi
pop esi
pop edi
pop ebp
ret
mov eax, dword [ebp + 0xc]
cmp eax, 2
ja 0x5463d3
push dword [edi + 0x148]
lea eax, [eax + eax*2]
push 1
add eax, 0x6a4950
push 2
push eax
call fcn.00510ef7
push dword [edi + 0x148]
push 1
push dword [ebp + 0x14]
push dword [ebp + 0x10]
call fcn.00510ef7
add esp, 0x20
xor eax, eax
pop edi
pop ebp
ret

Function at 0x546750
Capabilities:
Send data
Send data on socket

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x108
mov eax, dword [0x71906c]
xor eax, ebp
mov dword [ebp - 4], eax
mov edx, dword [ebp + 8]
mov ecx, dword [ebp + 0xc]
push ebx
push esi
mov eax, dword [edx + 0xc]
mov esi, dword [ebp + 0x18]
push edi
mov edi, dword [ebp + 0x10]
mov ebx, dword [eax + ecx*4 + 0x148]
push ecx
push eax
push edx
mov dword [ebp - 0x108], edx
call fcn.00546bd0
add esp, 0xc
test eax, eax
je 0x5467ab
pop edi
mov dword [esi], 0x1b
or eax, 0xffffffff
pop esi
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.0042d755
mov esp, ebp
pop ebp
ret
push 0
push dword [ebp + 0x14]
push edi
push ebx
call dword [sym.imp.WS2_32.dll_send]
mov edi, eax
mov dword [esi], 0
cmp edi, 0xffffffff
jne 0x546828
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov ebx, eax
cmp ebx, 0x2733
jne 0x5467f0
xor edi, edi
mov dword [esi], 0x51
mov eax, edi
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.0042d755
mov esp, ebp
pop ebp
ret
push 0x100
lea eax, [ebp - 0x104]
push eax
push ebx
call fcn.00534020
push eax
push str.Send_failure:__s
push dword [ebp - 0x108]
call fcn.005463e0
mov eax, dword [ebp - 0x108]
add esp, 0x18
mov dword [eax + 0x93c], ebx
mov dword [esi], 0x37
mov ecx, dword [ebp - 4]
mov eax, edi
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.0042d755
mov esp, ebp
pop ebp
ret
Function at 0x546bd0
Capabilities:
Receive data
Receive data on socket

Disassembly:
push ebp
mov ebp, esp
mov edx, dword [ebp + 0x10]
mov ecx, dword [ebp + 0xc]
push ebx
push esi
lea esi, [edx + 0x17]
mov eax, dword [ecx + 0x288]
shl esi, 4
add esi, ecx
push edi
mov edi, dword [esi + 4]
sub edi, dword [esi + 8]
test byte [eax + 0x40], 3
je 0x546ca1
cmp dword [ecx + edx*4 + 0x160], 0x546650
jne 0x546ca1
cmp dword [esi], 0
je 0x546c18
test edi, edi
je 0x546ca1
mov ebx, dword [ecx + edx*4 + 0x148]
push 0
push 0
push 0xffffffffffffffff
push 0xffffffffffffffff
push ebx
call fcn.00555650
add esp, 0x14
cmp eax, 0xffffffff
je 0x546ca1
test al, 1
je 0x546ca1
mov ecx, dword [esi]
test ecx, ecx
jne 0x546c7c
mov eax, dword [ebp + 8]
mov eax, dword [eax + 0x4c8]
add eax, eax
push eax
mov dword [esi + 4], eax
call dword [0x719dec]
mov ecx, eax
add esp, 4
mov dword [esi], ecx
test ecx, ecx
jne 0x546c67
pop edi
pop esi
lea eax, [ecx + 0x1b]
pop ebx
pop ebp
ret
mov edi, dword [esi + 4]
mov dword [esi + 8], 0
mov dword [esi + 0xc], 0
test ecx, ecx
je 0x546c9a
mov eax, dword [esi + 8]
push 0
push edi
add eax, ecx
push eax
push ebx
call dword [sym.imp.WS2_32.dll_recv]
test eax, eax
jle 0x546ca1
add dword [esi + 8], eax
xor eax, eax
pop edi
pop esi
pop ebx
pop ebp
ret
mov dword [esi + 4], 0
pop edi
pop esi
xor eax, eax
pop ebx
pop ebp
ret

Function at 0x546e30
Capabilities:
Receive data
Receive data on socket

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [ebp + 8]
cmp byte [eax + 0x19c], 0
je 0x546e50
push eax
call fcn.00540340
add esp, 4
test eax, eax
jne 0x546e6e
xor al, al
pop ebp
ret
mov eax, dword [eax + 0x148]
cmp eax, 0xffffffff
je 0x546e4c
push 2
push 1
lea ecx, [ebp + 0xb]
push ecx
push eax
call dword [sym.imp.WS2_32.dll_recv]
test eax, eax
je 0x546e4c
mov al, 1
pop ebp
ret

Function at 0x547060
Capabilities:
Get local ipv4 addresses
Get socket information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x188
mov eax, dword [0x71906c]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
mov ebx, dword [ebp + 8]
lea eax, [ebp - 0x184]
push esi
mov esi, dword [ebp + 0x10]
push edi
mov edi, dword [ebp + 0x14]
push 0x80
push 0
push eax
mov dword [ebp - 0x188], 0x80
call fcn.00506fc0
add esp, 0xc
lea eax, [ebp - 0x188]
push eax
lea eax, [ebp - 0x184]
push eax
push dword [ebp + 0xc]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x5470dd
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov esi, eax
lea eax, [ebp - 0x104]
push 0x100
push eax
push esi
call fcn.00534020
push eax
push esi
push str.getsockname___failed_with_errno__d:__s
jmp 0x547120
push edi
push esi
push dword [ebp - 0x188]
lea eax, [ebp - 0x184]
push eax
call fcn.00546cb0
add esp, 0x10
test al, al
jne 0x547129
call fcn.0050cbc7
mov esi, dword [eax]
call fcn.0050cbc7
mov edi, eax
lea eax, [ebp - 0x104]
push 0x100
push eax
push esi
call fcn.00534020
push eax
push dword [edi]
push str.ssloc_inet_ntop___failed_with_errno__d:__s
push ebx
call fcn.005463e0
add esp, 0x1c
mov ecx, dword [ebp - 4]
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.0042d755
mov esp, ebp
pop ebp
ret
Function at 0x5478b0
Capabilities:
Set socket configuration

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xc
mov eax, dword [0x7277dc]
mov dword [ebp - 8], 0x4020
mov dword [ebp - 4], 0
mov dword [ebp - 0xc], 4
test eax, eax
jne 0x547901
push 3
push 2
push eax
push 6
call fcn.00572660
add esp, 0x10
test al, al
je 0x5478f5
mov dword [0x7277dc], 2
mov esp, ebp
pop ebp
ret
mov dword [0x7277dc], 1
jmp 0x547906
cmp eax, 2
je 0x547946
lea eax, [ebp - 0xc]
push eax
lea eax, [ebp - 4]
push eax
push 0x1001
push 0xffff
push dword [ebp + 8]
call dword [sym.imp.WS2_32.dll_getsockopt]
test eax, eax
jne 0x54792d
mov eax, dword [ebp - 4]
cmp eax, dword [ebp - 8]
jg 0x547946
push 4
lea eax, [ebp - 8]
push eax
push 0x1001
push 0xffff
push dword [ebp + 8]
call dword [sym.imp.WS2_32.dll_setsockopt]
mov esp, ebp
pop ebp
ret
Function at 0x5487b0
Capabilities:
Set socket configuration

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x18
mov eax, dword [0x71906c]
xor eax, ebp
mov dword [ebp - 4], eax
push esi
mov esi, dword [ebp + 8]
xor eax, eax
push edi
mov edi, dword [ebp + 0xc]
push 4
cmp byte [esi + 0x6ff], al
setne al
mov dword [ebp - 0x14], eax
lea eax, [ebp - 0x14]
push eax
push 8
push 0xffff
push edi
call dword [sym.imp.WS2_32.dll_setsockopt]
test eax, eax
jns 0x54880d
push edi
push str.Failed_to_set_SO_KEEPALIVE_on_fd__d_n
push esi
call fcn.005464a0
add esp, 0xc
pop edi
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.0042d755
mov esp, ebp
pop ebp
ret
push dword [esi + 0x698]
mov dword [ebp - 0x10], 1
call fcn.00548a20
push dword [esi + 0x69c]
imul eax, eax, 0x3e8
mov dword [ebp - 0x14], eax
mov dword [ebp - 0xc], eax
call fcn.00548a20
add esp, 8
imul eax, eax, 0x3e8
push 0
push 0
mov dword [ebp - 0x14], eax
mov dword [ebp - 8], eax
lea eax, [ebp - 0x18]
push eax
push 0
push 0
push 0xc
lea eax, [ebp - 0x10]
push eax
push 0x98000004
push edi
call dword [sym.imp.WS2_32.dll_WSAIoctl]
test eax, eax
je 0x54887d
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push edi
push str.Failed_to_set_SIO_KEEPALIVE_VALS_on_fd__d:__d_n
push esi
call fcn.005464a0
add esp, 0x10
mov ecx, dword [ebp - 4]
pop edi
xor ecx, ebp
pop esi
call fcn.0042d755
mov esp, ebp
pop ebp
ret

Function at 0x548890
Capabilities:
Set socket configuration

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x108
mov eax, dword [0x71906c]
xor eax, ebp
mov dword [ebp - 4], eax
push esi
mov esi, dword [ebp + 8]
lea eax, [ebp - 0x108]
push 4
push eax
push 1
push 6
push dword [ebp + 0xc]
mov dword [ebp - 0x108], 1
call dword [sym.imp.WS2_32.dll_setsockopt]
test eax, eax
jns 0x5488f2
push 0x100
lea eax, [ebp - 0x104]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.00534020
push eax
push str.Could_not_set_TCP_NODELAY:__s_n
push esi
call fcn.005464a0
add esp, 0x18
mov ecx, dword [ebp - 4]
xor ecx, ebp
pop esi
call fcn.0042d755
mov esp, ebp
pop ebp
ret

Function at 0x548a00
Capabilities:
Read file on windows

Disassembly:
push ebp
mov ebp, esp
push dword [ebp + 0x10]
call fcn.00403480
add esp, 4
mov dword [ebp + 0x10], eax
pop ebp
jmp fcn.00528932
Function at 0x548c80
Capabilities:
Get common file path

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
push edi
push 0x696e0c
xor edi, edi
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
mov dword [ebp - 4], eax
test eax, eax
jne 0x548ca0
pop edi
mov esp, ebp
pop ebp
ret
push ebx
push esi
push 0x6a4dac
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov esi, dword [ebp + 8]
mov ebx, eax
push 0x6a4dbc
push esi
mov dword [ebp - 8], ebx
call fcn.0052d3d3
add esp, 8
test eax, eax
je 0x548cec
test ebx, ebx
je 0x548cdc
push 8
push 0
push esi
call ebx
pop esi
mov edi, eax
pop ebx
pop edi
mov esp, ebp
pop ebp
ret
push esi
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
pop esi
mov edi, eax
pop ebx
pop edi
mov esp, ebp
pop ebp
ret
test ebx, ebx
je 0x548d15
push str.AddDllDirectory
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x548d15
push 0x800
push 0
push esi
call ebx
pop esi
mov edi, eax
pop ebx
pop edi
mov esp, ebp
pop ebp
ret
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryW]
mov edx, eax
mov dword [ebp - 4], edx
test edx, edx
je 0x548dd8
mov ecx, esi
lea ebx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x548d31
sub ecx, ebx
sar ecx, 1
lea eax, [ecx + edx]
lea eax, [eax*2 + 2]
push eax
call dword [0x719dec]
mov ebx, eax
add esp, 4
test ebx, ebx
je 0x548dce
push dword [ebp - 4]
push ebx
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryW]
test eax, eax
je 0x548dce
mov ecx, ebx
lea edx, [ecx + 2]
nop dword [eax]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x548d70
sub ecx, edx
sar ecx, 1
mov dword [ebx + ecx*2], 0x5c
mov ecx, ebx
lea edx, [ecx + 2]
nop dword [eax + eax]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x548d90
sub ecx, edx
sar ecx, 1
add ecx, ecx
sub ecx, esi
add ecx, ebx
movzx eax, word [esi]
lea esi, [esi + 2]
mov word [ecx + esi - 2], ax
test ax, ax
jne 0x548da5
mov eax, dword [ebp - 8]
test eax, eax
je 0x548dc5
push 8
push 0
push ebx
call eax
jmp 0x548dcc
push ebx
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
mov edi, eax
push ebx
call dword [0x719df0]
add esp, 4
pop esi
pop ebx
mov eax, edi
pop edi
mov esp, ebp
pop ebp
ret
Function at 0x548df0
Capabilities:
Initialize winsock library

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x194
mov eax, dword [0x71906c]
xor eax, ebp
mov dword [ebp - 4], eax
test byte [ebp + 8], 2
je 0x548e49
lea eax, [ebp - 0x194]
push eax
push 0x202
call dword [sym.imp.WS2_32.dll_WSAStartup]
test eax, eax
jne 0x548e36
mov eax, dword [ebp - 0x194]
cmp al, 2
jne 0x548e30
shr eax, 8
cmp al, 2
je 0x548e49
call dword [sym.imp.WS2_32.dll_WSACleanup]
mov eax, 2
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.0042d755
mov esp, ebp
pop ebp
ret
push str.iphlpapi.dll
call fcn.00548c80
add esp, 4
mov dword [0x7277e4], eax
test eax, eax
je 0x548e7c
push str.if_nametoindex
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov ecx, dword [0x7277e0]
test eax, eax
cmovne ecx, eax
mov dword [0x7277e0], ecx
push 3
push 2
push 0
push 6
call fcn.00572660
add esp, 0x10
test al, al
setne byte [0x72b48c]
push 0x72b490
call dword [sym.imp.KERNEL32.dll_QueryPerformanceFrequency]
mov ecx, dword [ebp - 4]
xor eax, eax
xor ecx, ebp
call fcn.0042d755
mov esp, ebp
pop ebp
ret

Function at 0x54c720
Capabilities:
Create udp socket

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [ebp + 8]
test eax, eax
je 0x54c735
mov eax, dword [eax + 0x70]
mov al, byte [eax + 0xe7]
pop ebp
ret
push 0
push 2
push 0x17
call dword [sym.imp.WS2_32.dll_socket]
cmp eax, 0xffffffff
jne 0x54c74a
xor al, al
pop ebp
ret
push eax
call dword [sym.imp.WS2_32.dll_closesocket]
mov al, 1
pop ebp
ret

Function at 0x54c8e0
Capabilities:
Terminate process

Disassembly:
push ebp
mov ebp, esp
push esi
mov esi, dword [ebp + 8]
test esi, esi
je 0x54c8fe
cmp dword [esi + 0x78], 0
je 0x54c8fe
push 2
push 3
push esi
call fcn.0054bea0
add esp, 0xc
push dword [ebp + 0xc]
call fcn.0054c2d0
add esp, 4
test esi, esi
je 0x54c91e
cmp dword [esi + 0x78], 0
je 0x54c91e
push 3
push esi
call fcn.0054bee0
add esp, 8
pop esi
pop ebp
ret
Function at 0x552120
Capabilities:
Act as tcp client
Connect socket
Connect tcp socket
Connect udp socket
Create tcp socket
Create udp socket
Get local ipv4 addresses
Get socket information
Receive data
Receive data on socket
Send data
Send data on socket
Set socket configuration
Start tcp server

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x34
mov eax, dword [0x71906c]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
mov ebx, dword [ebp + 0x14]
push esi
mov esi, dword [sym.imp.WS2_32.dll_socket]
push edi
push 6
push 1
push 2
mov dword [ebp - 0x34], 0x10
mov dword [ebp - 0x30], 1
call esi
mov edi, eax
cmp edi, 0xffffffff
je 0x5522f1
xorps xmm0, xmm0
mov eax, 2
push 0x7f000001
movlpd qword [ebp - 0x24], xmm0
mov word [ebp - 0x2c], ax
call dword [sym.imp.WS2_32.dll_htonl]
mov dword [ebp - 0x28], eax
xor eax, eax
push 4
mov word [ebp - 0x2a], ax
lea eax, [ebp - 0x30]
push eax
push 4
push 0xffff
push edi
mov dword [ebx + 4], 0xffffffff
mov dword [ebx], 0xffffffff
call dword [sym.imp.WS2_32.dll_setsockopt]
cmp eax, 0xffffffff
je 0x5522df
push 0x10
lea eax, [ebp - 0x2c]
push eax
push edi
call dword [sym.imp.WS2_32.dll_bind]
cmp eax, 0xffffffff
je 0x5522df
lea eax, [ebp - 0x34]
push eax
lea eax, [ebp - 0x2c]
push eax
push edi
call dword [sym.imp.WS2_32.dll_getsockname]
cmp eax, 0xffffffff
je 0x5522df
push 1
push edi
call dword [sym.imp.WS2_32.dll_listen]
cmp eax, 0xffffffff
je 0x5522df
push 0
push 1
push 2
call esi
mov dword [ebx], eax
cmp eax, 0xffffffff
je 0x5522df
push 0x10
lea ecx, [ebp - 0x2c]
push ecx
push eax
call dword [sym.imp.WS2_32.dll_connect]
cmp eax, 0xffffffff
je 0x5522df
push 0
push 0
push edi
call dword [sym.imp.WS2_32.dll_accept]
mov dword [ebx + 4], eax
cmp eax, 0xffffffff
je 0x5522df
push ebx
push 0x700d3c
lea eax, [ebp - 0x1c]
push 0xc
push eax
call fcn.00549cb0
lea esi, [ebp - 0x1c]
add esp, 0x10
lea ecx, [esi + 1]
mov al, byte [esi]
inc esi
test al, al
jne 0x552246
push 0
sub esi, ecx
lea eax, [ebp - 0x1c]
push esi
push eax
push dword [ebx]
call dword [sym.imp.WS2_32.dll_send]
cmp eax, esi
jne 0x5522df
push 0
push 0xc
lea eax, [ebp - 0x10]
push eax
push dword [ebx + 4]
call dword [sym.imp.WS2_32.dll_recv]
cmp eax, esi
jne 0x5522df
lea ecx, [ebp - 0x1c]
lea edx, [ebp - 0x10]
sub esi, 4
jb 0x552293
mov eax, dword [ecx]
cmp eax, dword [edx]
jne 0x552298
add ecx, 4
add edx, 4
sub esi, 4
jae 0x552282
cmp esi, 0xfffffffc
je 0x5522c5
mov al, byte [ecx]
cmp al, byte [edx]
jne 0x5522df
cmp esi, 0xfffffffd
je 0x5522c5
mov al, byte [ecx + 1]
cmp al, byte [edx + 1]
jne 0x5522df
cmp esi, 0xfffffffe
je 0x5522c5
mov al, byte [ecx + 2]
cmp al, byte [edx + 2]
jne 0x5522df
cmp esi, 0xffffffff
je 0x5522c5
mov al, byte [ecx + 3]
cmp al, byte [edx + 3]
jne 0x5522df
push edi
call dword [sym.imp.WS2_32.dll_closesocket]
pop edi
pop esi
xor eax, eax
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.0042d755
mov esp, ebp
pop ebp
ret
mov esi, dword [sym.imp.WS2_32.dll_closesocket]
push edi
call esi
push dword [ebx]
call esi
push dword [ebx + 4]
call esi
mov ecx, dword [ebp - 4]
or eax, 0xffffffff
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.0042d755
mov esp, ebp
pop ebp
ret
Function at 0x5557c0
Capabilities:
Get socket status

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [ebp + 0xc]
sub esp, 0x10
push ebx
mov ebx, dword [ebp + 0x10]
push edi
mov edi, dword [ebp + 0x14]
test eax, eax
je 0x5557da
cmp dword [eax], 0
jne 0x5557f4
test ebx, ebx
je 0x5557e3
cmp dword [ebx], 0
jne 0x5557f4
test edi, edi
je 0x5558d4
cmp dword [edi], 0
je 0x5558d4
mov edx, dword [ebp + 0x1c]
mov ecx, dword [ebp + 0x18]
push esi
lea esi, [ebp - 8]
test edx, edx
jg 0x555819
jl 0x555808
test ecx, ecx
jae 0x55580f
xor esi, esi
jmp 0x55589d
test edx, edx
jl 0x55588f
jg 0x555819
test ecx, ecx
je 0x55588f
push 0
push 0x3e8
push edx
push ecx
call fcn.0057d7f0
push 0
push 0x3e8
mov esi, edx
mov dword [ebp - 4], eax
push esi
push eax
call fcn.0042e400
mov ecx, dword [ebp + 0x18]
sub ecx, eax
mov eax, dword [ebp + 0x1c]
push 0
push 0x3e8
sbb eax, edx
push eax
push ecx
call fcn.0042e400
mov ecx, eax
test esi, esi
jl 0x55587e
jg 0x555864
mov eax, dword [ebp - 4]
cmp eax, 0x7fffffff
jbe 0x555881
mov eax, SysReAllocString
mov dword [ebp - 0xc], 0
mov dword [ebp - 8], eax
lea esi, [ebp - 8]
mov eax, dword [ebp + 0xc]
mov dword [ebp - 4], ecx
jmp 0x55589d
mov eax, dword [ebp - 4]
mov dword [ebp - 8], eax
lea esi, [ebp - 8]
mov eax, dword [ebp + 0xc]
mov dword [ebp - 4], ecx
jmp 0x55589d
mov dword [ebp - 8], 0
mov dword [ebp - 4], 0
test edi, edi
je 0x5558a6
cmp dword [edi], 0
jne 0x5558a8
xor edi, edi
test ebx, ebx
je 0x5558b1
cmp dword [ebx], 0
jne 0x5558b3
xor ebx, ebx
test eax, eax
je 0x5558bc
cmp dword [eax], 0
jne 0x5558be
xor eax, eax
push esi
push edi
push ebx
push eax
mov eax, dword [ebp + 8]
inc eax
push eax
call dword [sym.imp.WS2_32.dll_select]
pop esi
pop edi
pop ebx
mov esp, ebp
pop ebp
ret
push dword [ebp + 0x1c]
push dword [ebp + 0x18]
call fcn.00555770
add esp, 8
pop edi
pop ebx
mov esp, ebp
pop ebp
ret