joyce8/EMBER2024-capa huggingface dataset:
Function at 0x4c29f0
Capabilities:
Encode data using base64

Disassembly:
push ebx
push esi
mov esi, dword [esp + 0x14]
xor ebx, ebx
test esi, esi
jle 0x4c2adc
mov edx, dword [esp + 0xc]
push edi
mov edi, dword [esp + 0x14]
inc edi
nop word [eax + eax]
cmp esi, 3
jl 0x4c2a6d
movzx ecx, byte [edi - 1]
movzx eax, byte [edi]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 1]
shl ecx, 8
or ecx, eax
mov eax, ecx
shr eax, 0x12
movzx eax, byte [eax + 0x5ac228]
mov byte [edx], al
mov eax, ecx
shr eax, 0xc
and eax, 0x3f
movzx eax, byte [eax + 0x5ac228]
mov byte [edx + 1], al
mov eax, ecx
shr eax, 6
and eax, 0x3f
movzx eax, byte [eax + 0x5ac228]
mov byte [edx + 2], al
add edx, 3
and ecx, 0x3f
movzx eax, byte [ecx + 0x5ac228]
mov byte [edx], al
jmp 0x4c2ac1
movzx eax, byte [edi - 1]
shl eax, 0x10
cmp esi, 2
jne 0x4c2a81
movzx ecx, byte [edi]
shl ecx, 8
or eax, ecx
mov ecx, eax
shr ecx, 0x12
movzx ecx, byte [ecx + 0x5ac228]
mov byte [edx], cl
mov ecx, eax
shr ecx, 0xc
and ecx, 0x3f
movzx ecx, byte [ecx + 0x5ac228]
mov byte [edx + 1], cl
cmp esi, 1
jne 0x4c2aab
lea eax, [esi + 0x3c]
jmp 0x4c2ab8
shr eax, 6
and eax, 0x3f
movzx eax, byte [eax + 0x5ac228]
mov byte [edx + 2], al
add edx, 3
mov byte [edx], 0x3d
sub esi, 3
add ebx, 4
add edi, 3
inc edx
test esi, esi
jg 0x4c2a10
pop edi
pop esi
mov eax, ebx
mov byte [edx], 0
pop ebx
ret
mov eax, dword [esp + 0xc]
pop esi
mov byte [eax], bl
mov eax, ebx
pop ebx
ret
Function at 0x4e4f60
Capabilities:
Encode data using xor
Hash data using djb2

Disassembly:
sub esp, 0x18
mov eax, dword [0x5db100]
xor eax, esp
mov dword [esp + 0x14], eax
push esi
mov esi, dword [esp + 0x20]
test esi, esi
je 0x4e502b
lea eax, [esp + 4]
push eax
push esi
push 2
call fcn.004fe930
add esp, 0xc
test eax, eax
jne 0x4e502b
lea eax, [esp + 8]
push eax
push esi
push 0x17
call fcn.004fe930
add esp, 0xc
test eax, eax
jne 0x4e502b
push ebx
push edi
mov edi, esi
xor ebx, ebx
lea ecx, [edi + 1]
mov al, byte [edi]
inc edi
test al, al
jne 0x4e4fb4
sub edi, ecx
push edi
push 0x2e
push esi
call fcn.004fe900
add esp, 0xc
test eax, eax
je 0x4e4fe8
sub eax, esi
push eax
push 0x2e
push esi
call fcn.004fe900
mov ebx, eax
add esp, 0xc
test ebx, ebx
je 0x4e4fea
inc ebx
mov ecx, esi
sub ecx, ebx
add edi, ecx
test ebx, ebx
cmovne esi, ebx
mov ebx, 0x1505
add edi, esi
cmp esi, edi
jae 0x4e5016
mov al, byte [esi]
push eax
call fcn.004f1e80
movsx ecx, al
inc esi
mov eax, ebx
add esp, 4
shl eax, 5
add eax, ebx
xor ecx, eax
mov ebx, ecx
cmp esi, edi
jb 0x4e4ff8
pop edi
movzx eax, bl
pop ebx
pop esi
mov ecx, dword [esp + 0x14]
xor ecx, esp
call fcn.00448b50
add esp, 0x18
ret
mov ecx, dword [esp + 0x18]
xor eax, eax
pop esi
xor ecx, esp
call fcn.00448b50
add esp, 0x18
ret

Function at 0x4e5b50
Capabilities:
Create udp socket

Disassembly:
mov eax, dword [0x5df8c4]
cmp eax, 0xffffffff
jne 0x4e5b92
push 0
push 2
push 0x17
call dword [sym.imp.WS2_32.dll_socket]
cmp eax, 0xffffffff
jne 0x4e5b78
xor eax, eax
test eax, eax
mov dword [0x5df8c4], eax
setg al
ret
push eax
push 0
mov dword [0x5df8c4], 1
call fcn.004ef2f0
mov eax, dword [0x5df8c4]
add esp, 8
test eax, eax
setg al
ret

Function at 0x4e5ba0
Capabilities:
Create udp socket

Disassembly:
mov eax, dword [esp + 4]
cmp dword [eax + 0x2f0], 2
jne 0x4e5bf5
mov eax, dword [0x5df8c4]
cmp eax, 0xffffffff
jne 0x4e5bef
push 0
push 2
push 0x17
call dword [sym.imp.WS2_32.dll_socket]
cmp eax, 0xffffffff
jne 0x4e5bd5
xor eax, eax
test eax, eax
mov dword [0x5df8c4], eax
setg al
ret
push eax
push 0
mov dword [0x5df8c4], 1
call fcn.004ef2f0
mov eax, dword [0x5df8c4]
add esp, 8
test eax, eax
setg al
ret
mov al, 1
ret
Function at 0x4ee6a0
Capabilities:
Write file on windows

Disassembly:
push edi
mov edi, dword [esp + 8]
cmp dword [edi + 0x608], 0
je 0x4ee6e4
push esi
push 1
push edi
call fcn.004e0f20
push dword [edi + 0x59c]
mov eax, dword [edi + 0x608]
push dword [esp + 0x24]
push dword [esp + 0x24]
push dword [esp + 0x24]
push edi
call eax
push 0
push edi
mov esi, eax
call fcn.004e0f20
add esp, 0x24
mov eax, esi
pop esi
pop edi
ret
mov eax, dword [esp + 0xc]
cmp eax, 2
ja 0x4ee71d
push dword [edi + 0x598]
lea eax, [eax + eax*2]
push 1
add eax, 0x5b5448
push 2
push eax
call fcn.00543b93
push dword [edi + 0x598]
push 1
push dword [esp + 0x2c]
push dword [esp + 0x2c]
call fcn.00543b93
add esp, 0x20
xor eax, eax
pop edi
ret

Function at 0x4eee20
Capabilities:
Receive data
Receive data on socket
Send data
Send data on socket

Disassembly:
sub esp, 0x8c
mov eax, dword [0x5db100]
xor eax, esp
mov dword [esp + 0x88], eax
mov eax, dword [esp + 0x98]
mov edx, dword [esp + 0x94]
push ebx
mov ebx, dword [esp + 0x94]
mov dword [esp + 8], eax
xor eax, eax
push ebp
mov ebp, dword [esp + 0xa8]
mov ecx, dword [ebx + 0x1c4]
cmp edx, ecx
push esi
sete al
mov esi, 0x1e4
push edi
lea eax, [eax*4 + 0x1c0]
mov eax, dword [eax + ebx]
mov dword [esp + 0x10], eax
mov eax, 0x1f4
cmove esi, eax
mov eax, dword [ebx + 0x2e8]
add esi, ebx
mov edi, dword [esi + 4]
sub edi, dword [esi + 8]
test byte [eax + 0x40], 3
je 0x4eef2e
xor eax, eax
cmp edx, ecx
sete al
lea eax, [eax*4 + 0x1d4]
cmp dword [eax + ebx], 0x4ee9e0
jne 0x4eef2e
cmp dword [esi], 0
je 0x4eeeb8
test edi, edi
je 0x4eef2e
push 0
push 0
push 0xffffffffffffffff
push 0xffffffffffffffff
push dword [esp + 0x20]
call fcn.004f1a70
add esp, 0x14
cmp eax, 0xffffffff
je 0x4eef2e
test al, 1
je 0x4eef2e
mov ecx, dword [esi]
test ecx, ecx
jne 0x4eef0b
mov eax, dword [ebx]
mov eax, dword [eax + 0x8f4]
add eax, eax
push eax
mov dword [esi + 4], eax
call dword [0x5df8b0]
mov edi, dword [esi + 4]
mov ecx, eax
add esp, 4
mov dword [esi], ecx
mov dword [esi + 8], 0
mov dword [esi + 0xc], 0
test ecx, ecx
je 0x4eef27
mov eax, dword [esi + 8]
push 0
push edi
add eax, ecx
push eax
push dword [esp + 0x1c]
call dword [sym.imp.WS2_32.dll_recv]
test eax, eax
jle 0x4eef2e
add dword [esi + 8], eax
jmp 0x4eef2e
mov dword [esi + 4], 0
push 0
push dword [esp + 0xb0]
push dword [esp + 0x1c]
push dword [esp + 0x1c]
call dword [sym.imp.WS2_32.dll_send]
mov edi, eax
cmp edi, 0xffffffff
jne 0x4eef97
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov esi, eax
cmp esi, 0x2733
jne 0x4eef68
mov dword [ebp], 0
lea eax, [edi + 0x52]
jmp 0x4eef9c
push 0x80
lea eax, [esp + 0x1c]
push eax
push esi
call fcn.00515f00
push eax
push str.Send_failure:__s
push dword [ebx]
call fcn.004ee730
mov eax, dword [ebx]
add esp, 0x18
mov dword [eax + 0xcfc], esi
mov eax, 0x37
jmp 0x4eef99
xor eax, eax
mov dword [ebp], edi
mov ecx, dword [esp + 0x98]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.00448b50
add esp, 0x8c
ret
Function at 0x4ef3b0
Capabilities:
Receive data
Receive data on socket

Disassembly:
mov eax, dword [esp + 4]
cmp byte [eax + 0x210], 0
je 0x4ef3cd
push eax
call fcn.004e8f10
add esp, 4
test eax, eax
jne 0x4ef3ec
xor al, al
ret
mov eax, dword [eax + 0x1c0]
cmp eax, 0xffffffff
je 0x4ef3ca
push 2
push 1
lea ecx, [esp + 0xc]
push ecx
push eax
call dword [sym.imp.WS2_32.dll_recv]
test eax, eax
je 0x4ef3ca
mov al, 1
ret
Function at 0x4f1060
Capabilities:
Get common file path

Disassembly:
push ecx
push ebx
push edi
push 0x5b58c0
xor edi, edi
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov ebx, eax
test ebx, ebx
jne 0x4f107a
pop edi
pop ebx
pop ecx
ret
push ebp
push esi
push str.LoadLibraryExA
push ebx
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov esi, dword [esp + 0x18]
mov ebp, eax
push 0x5b58dc
push esi
call fcn.005511f0
add esp, 8
test eax, eax
je 0x4f10c2
test ebp, ebp
je 0x4f10b3
push 8
push 0
push esi
call ebp
pop esi
pop ebp
mov edi, eax
pop edi
pop ebx
pop ecx
ret
push esi
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
pop esi
pop ebp
mov edi, eax
pop edi
pop ebx
pop ecx
ret
test ebp, ebp
je 0x4f10e8
push str.AddDllDirectory
push ebx
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x4f10e8
push 0x800
push 0
push esi
call ebp
pop esi
pop ebp
mov edi, eax
pop edi
pop ebx
pop ecx
ret
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
mov edx, eax
mov dword [esp + 0x10], edx
test edx, edx
je 0x4f119f
mov ecx, esi
lea ebx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x4f1105
sub ecx, ebx
lea eax, [edx + 1]
add eax, ecx
push eax
call dword [0x5df8b0]
mov ebx, eax
add esp, 4
test ebx, ebx
je 0x4f1195
push dword [esp + 0x10]
push ebx
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
test eax, eax
je 0x4f1195
mov ecx, ebx
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x4f1137
sub ecx, edx
mov eax, 0x5c
mov word [ecx + ebx], ax
mov ecx, ebx
lea edx, [ecx + 1]
nop
mov al, byte [ecx]
inc ecx
test al, al
jne 0x4f1150
sub ecx, edx
sub ecx, esi
add ecx, ebx
nop dword [eax]
mov al, byte [esi]
lea esi, [esi + 1]
mov byte [ecx + esi - 1], al
test al, al
jne 0x4f1160
test ebp, ebp
je 0x4f118c
push 8
push 0
push ebx
call ebp
push ebx
mov edi, eax
call dword [0x5df8b4]
add esp, 4
mov eax, edi
pop esi
pop ebp
pop edi
pop ebx
pop ecx
ret
push ebx
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov edi, eax
push ebx
call dword [0x5df8b4]
add esp, 4
pop esi
pop ebp
mov eax, edi
pop edi
pop ebx
pop ecx
ret
Function at 0x4fec20
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:
sub esp, 0x34
mov eax, dword [0x5db100]
xor eax, esp
mov dword [esp + 0x30], eax
push ebx
mov ebx, dword [esp + 0x48]
push esi
mov esi, dword [sym.imp.WS2_32.dll_socket]
push edi
push 6
push 1
push 2
mov dword [esp + 0x1c], 0x10
mov dword [esp + 0x18], 1
call esi
mov edi, eax
cmp edi, 0xffffffff
je 0x4fee06
xorps xmm0, xmm0
mov eax, 2
push 0x7f000001
movlpd qword [esp + 0x20], xmm0
mov word [esp + 0x18], ax
call dword [sym.imp.WS2_32.dll_htonl]
mov dword [esp + 0x18], eax
xor eax, eax
push 4
mov word [esp + 0x1a], ax
lea eax, [esp + 0x10]
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 0x4fedf4
push 0x10
lea eax, [esp + 0x18]
push eax
push edi
call dword [sym.imp.WS2_32.dll_bind]
cmp eax, 0xffffffff
je 0x4fedf4
lea eax, [esp + 0x10]
push eax
lea eax, [esp + 0x18]
push eax
push edi
call dword [sym.imp.WS2_32.dll_getsockname]
cmp eax, 0xffffffff
je 0x4fedf4
push 1
push edi
call dword [sym.imp.WS2_32.dll_listen]
cmp eax, 0xffffffff
je 0x4fedf4
push 0
push 1
push 2
call esi
mov dword [ebx], eax
cmp eax, 0xffffffff
je 0x4fedf4
push 0x10
lea ecx, [esp + 0x18]
push ecx
push eax
call dword [sym.imp.WS2_32.dll_connect]
cmp eax, 0xffffffff
je 0x4fedf4
push 0
push 0
push edi
call dword [sym.imp.WS2_32.dll_accept]
mov dword [ebx + 4], eax
cmp eax, 0xffffffff
je 0x4fedf4
push ebx
push 0x5b7994
lea eax, [esp + 0x2c]
push 0xc
push eax
call fcn.004fcd40
lea esi, [esp + 0x34]
add esp, 0x10
lea ecx, [esi + 1]
mov al, byte [esi]
inc esi
test al, al
jne 0x4fed52
push 0
sub esi, ecx
lea eax, [esp + 0x28]
push esi
push eax
push dword [ebx]
call dword [sym.imp.WS2_32.dll_send]
cmp eax, esi
jne 0x4fedf4
push 0
push 0xc
lea eax, [esp + 0x38]
push eax
push dword [ebx + 4]
call dword [sym.imp.WS2_32.dll_recv]
cmp eax, esi
jne 0x4fedf4
lea ecx, [esp + 0x24]
lea edx, [esp + 0x30]
sub esi, 4
jb 0x4feda7
mov eax, dword [ecx]
cmp eax, dword [edx]
jne 0x4fedac
add ecx, 4
add edx, 4
sub esi, 4
jae 0x4fed96
cmp esi, 0xfffffffc
je 0x4fedd9
mov al, byte [ecx]
cmp al, byte [edx]
jne 0x4fedf4
cmp esi, 0xfffffffd
je 0x4fedd9
mov al, byte [ecx + 1]
cmp al, byte [edx + 1]
jne 0x4fedf4
cmp esi, 0xfffffffe
je 0x4fedd9
mov al, byte [ecx + 2]
cmp al, byte [edx + 2]
jne 0x4fedf4
cmp esi, 0xffffffff
je 0x4fedd9
mov al, byte [ecx + 3]
cmp al, byte [edx + 3]
jne 0x4fedf4
push edi
call dword [sym.imp.WS2_32.dll_closesocket]
pop edi
pop esi
xor eax, eax
pop ebx
mov ecx, dword [esp + 0x30]
xor ecx, esp
call fcn.00448b50
add esp, 0x34
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 [esp + 0x3c]
or eax, 0xffffffff
pop edi
pop esi
pop ebx
xor ecx, esp
call fcn.00448b50
add esp, 0x34
ret
Function at 0x4fee60
Capabilities:
Resolve dns

Disassembly:
sub esp, 0xc
mov eax, dword [esp + 0x1c]
push ebx
xor ebx, ebx
mov dword [esp + 4], ebx
mov dword [eax], ebx
lea eax, [esp + 8]
push eax
push dword [esp + 0x20]
push dword [esp + 0x20]
push dword [esp + 0x20]
call dword [sym.imp.WS2_32.dll_getaddrinfo]
mov dword [esp + 0xc], eax
test eax, eax
jne 0x4feff2
push ebp
push edi
mov edi, dword [esp + 0x10]
test edi, edi
je 0x4fefdc
push esi
mov eax, dword [edi + 4]
cmp eax, 2
jne 0x4feeaf
lea ebp, [eax + 0xe]
jmp 0x4feebb
cmp eax, 0x17
jne 0x4fef69
lea ebp, [eax + 5]
cmp dword [edi + 0x18], 0
je 0x4fef69
mov eax, dword [edi + 0x10]
test eax, eax
je 0x4fef69
cmp eax, ebp
jb 0x4fef69
push 0x20
call dword [0x5df8b0]
mov esi, eax
add esp, 4
test esi, esi
je 0x4fefd1
mov eax, dword [edi]
mov dword [esi], eax
mov eax, dword [edi + 4]
mov dword [esi + 4], eax
mov eax, dword [edi + 8]
mov dword [esi + 8], eax
mov eax, dword [edi + 0xc]
push ebp
mov dword [esi + 0xc], eax
mov dword [esi + 0x10], ebp
mov dword [esi + 0x18], 0
mov dword [esi + 0x14], 0
mov dword [esi + 0x1c], 0
call dword [0x5df8b0]
add esp, 4
mov dword [esi + 0x18], eax
test eax, eax
je 0x4fefc0
push ebp
push dword [edi + 0x18]
push eax
call fcn.0053a830
mov eax, dword [edi + 0x14]
add esp, 0xc
test eax, eax
je 0x4fef55
push eax
call dword [0x5df8bc]
add esp, 4
mov dword [esi + 0x14], eax
test eax, eax
je 0x4fefa6
mov eax, dword [esp + 0x10]
test ebx, ebx
cmove ebx, esi
test eax, eax
je 0x4fef65
mov dword [eax + 0x1c], esi
mov dword [esp + 0x10], esi
mov edi, dword [edi + 0x1c]
test edi, edi
jne 0x4feea2
mov ebp, dword [esp + 0x18]
mov eax, dword [esp + 0x14]
pop esi
test eax, eax
je 0x4fef88
push eax
call dword [sym.imp.WS2_32.dll_freeaddrinfo]
test ebp, ebp
je 0x4fefd8
push ebx
call fcn.004fee20
mov eax, dword [esp + 0x2c]
add esp, 4
xor ebx, ebx
mov dword [eax], ebx
mov eax, ebp
pop edi
pop ebp
pop ebx
add esp, 0xc
ret
push dword [esi + 0x18]
mov ebp, 8
call dword [0x5df8b4]
push esi
call dword [0x5df8b4]
add esp, 8
jmp 0x4fef78
push esi
mov ebp, 8
call dword [0x5df8b4]
add esp, 4
jmp 0x4fef78
mov ebp, 8
jmp 0x4fef78
test ebx, ebx
jne 0x4fefe8
mov ebp, 0x2af9
push ebp
call dword [sym.imp.WS2_32.dll_WSASetLastError]
mov eax, dword [esp + 0x28]
pop edi
mov dword [eax], ebx
mov eax, ebp
pop ebp
pop ebx
add esp, 0xc
ret
Function at 0x502cf0
Capabilities:
Query environment variable

Disassembly:
mov eax, 0x1004
call fcn.00449370
mov eax, dword [0x5db100]
xor eax, esp
mov dword [esp + 0x1000], eax
mov eax, dword [esp + 0x1008]
push eax
call fcn.0054deb9
add esp, 4
mov byte [esp], 0
test eax, eax
je 0x502d59
push 0x1000
lea ecx, [esp + 4]
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_ExpandEnvironmentStringsA]
cmp byte [esp], 0
je 0x502d59
lea eax, [esp]
push eax
call dword [0x5df8bc]
add esp, 4
mov ecx, dword [esp + 0x1000]
xor ecx, esp
call fcn.00448b50
add esp, 0x1004
ret
mov ecx, dword [esp + 0x1000]
xor eax, eax
xor ecx, esp
call fcn.00448b50
add esp, 0x1004
ret

Function at 0x508290
Capabilities:
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x88
mov eax, dword [0x5db100]
xor eax, esp
mov dword [esp + 0x84], eax
push ebx
push ebp
push esi
push edi
mov edi, dword [esp + 0x9c]
lea eax, [esp + 0x10]
push eax
lea eax, [esp + 0x18]
mov dword [esp + 0x14], 0x80
push eax
mov ebp, dword [edi + 0x1c4]
or esi, 0xffffffff
mov ebx, dword [edi]
push ebp
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x5082f2
lea eax, [esp + 0x10]
mov dword [esp + 0x10], 0x80
push eax
lea eax, [esp + 0x18]
push eax
push ebp
call dword [sym.imp.WS2_32.dll_accept]
mov esi, eax
push ebp
push edi
call fcn.004ef2f0
add esp, 8
cmp esi, 0xffffffff
jne 0x508316
push str.Error_accept__ing_server_connect
push ebx
call fcn.004ee730
add esp, 8
mov eax, 0x1e
jmp 0x508385
push str.Connection_accepted_from_server_n
push ebx
call fcn.004ee810
push 1
push esi
mov byte [edi + 0x2b0], 0
mov dword [edi + 0x1c4], esi
call fcn.005167b0
add esp, 0x10
mov byte [edi + 0x1d1], 1
cmp dword [ebx + 0x610], 0
je 0x508383
push 1
push ebx
call fcn.004e0f20
mov eax, dword [ebx + 0x610]
push 1
push esi
push dword [ebx + 0x614]
call eax
push 0
push ebx
mov esi, eax
call fcn.004e0f20
add esp, 0x1c
test esi, esi
je 0x508383
push edi
call fcn.00508820
add esp, 4
mov eax, 0x2a
jmp 0x508385
xor eax, eax
mov ecx, dword [esp + 0x94]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.00448b50
add esp, 0x88
ret
Function at 0x50f720
Capabilities:
Send data
Send data on socket

Disassembly:
mov eax, dword [esp + 0xc]
push ebx
mov ebx, dword [esp + 0xc]
push esi
mov esi, dword [esp + 0xc]
push edi
push 0
mov byte [esp + 0x16], al
lea eax, [esp + 0x14]
mov edi, dword [esi]
push 3
push eax
push dword [esi + 0x1c0]
mov byte [esp + 0x20], 0xff
mov byte [esp + 0x21], bl
call dword [sym.imp.WS2_32.dll_send]
test eax, eax
jns 0x50f76c
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push str.Sending_data_failed___d_
push edi
call fcn.004ee730
add esp, 0xc
push dword [esp + 0x18]
push ebx
push str.SENT
push dword [esi]
call fcn.0050f330
add esp, 0x10
pop edi
pop esi
pop ebx
ret

Function at 0x50f8a0
Capabilities:
Send data
Send data on socket

Disassembly:
push ecx
cmp dword [esp + 0xc], 0x1f
mov eax, dword [esp + 8]
push ebp
mov eax, dword [eax]
mov dword [esp + 4], eax
mov ebp, dword [eax + 0x14c]
jne 0x50f9f1
push ebx
push esi
push edi
lea ebx, [ebp + 0x1cb0]
lea edi, [ebp + 0x1eb0]
mov dword [edi], ebx
cmp ebx, edi
jae 0x50f8dc
lea eax, [ebx + 1]
mov byte [ebx], 0xff
mov dword [edi], eax
jmp 0x50f8de
mov eax, ebx
cmp eax, edi
jae 0x50f8f2
mov byte [eax], 0xfa
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x50f8f2
mov byte [eax], 0x1f
inc dword [edi]
movzx eax, word [ebp + 0x1ca8]
mov esi, dword [sym.imp.WS2_32.dll_htons]
push eax
call esi
movzx eax, ax
mov dword [esp + 0x1c], eax
movzx eax, word [ebp + 0x1caa]
push eax
call esi
mov edx, dword [esp + 0x1c]
movzx ecx, ax
mov eax, dword [edi]
cmp eax, edi
jae 0x50f95c
mov byte [eax], dl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x50f95c
mov byte [eax], dh
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x50f95c
mov byte [eax], cl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x50f95c
shr ecx, 8
mov byte [eax], cl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x50f95c
mov byte [eax], 0xff
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x50f95c
mov byte [eax], 0xf0
mov eax, dword [edi]
inc eax
mov esi, dword [esp + 0x10]
mov dword [ebp + 0x1eb4], eax
sub eax, ebx
sub eax, 2
mov dword [edi], ebx
push eax
lea eax, [ebp + 0x1cb2]
push eax
push 0x3e
push esi
call fcn.0050f430
add esp, 0x10
push 0
push 3
push ebx
mov ebx, dword [esp + 0x24]
push dword [ebx + 0x1c0]
call dword [sym.imp.WS2_32.dll_send]
mov edi, dword [sym.imp.WS2_32.dll_WSAGetLastError]
test eax, eax
jns 0x50f9b0
call edi
push eax
push str.Sending_data_failed___d_
push esi
call fcn.004ee730
add esp, 0xc
push 4
lea eax, [ebp + 0x1cb3]
push eax
push ebx
call fcn.0050f790
add esp, 0xc
lea eax, [ebp + 0x1cb7]
push 0
push 2
push eax
push dword [ebx + 0x1c0]
call dword [sym.imp.WS2_32.dll_send]
test eax, eax
jns 0x50f9ee
call edi
push eax
push str.Sending_data_failed___d_
push esi
call fcn.004ee730
add esp, 0xc
pop edi
pop esi
pop ebx
pop ebp
pop ecx
ret
Function at 0x510ea0
Capabilities:
Receive data
Receive data on socket

Disassembly:
sub esp, 0x8c
mov eax, dword [0x5db100]
xor eax, esp
mov dword [esp + 0x88], eax
push ebx
push ebp
mov ebp, dword [esp + 0x98]
lea eax, [esp + 8]
push esi
push edi
push eax
mov edi, dword [ebp + 0x4c8]
lea eax, [esp + 0x1c]
mov ebx, dword [ebp]
push eax
mov dword [esp + 0x18], 0x80
mov eax, dword [edi + 0x154]
push 0
add eax, 4
push eax
push dword [edi + 0x15c]
push dword [edi + 0x14]
call dword [sym.imp.WS2_32.dll_recvfrom]
cmp dword [edi + 0x148], 0
mov dword [edi + 0x14c], eax
jne 0x510f26
push dword [esp + 0x10]
lea eax, [esp + 0x1c]
push eax
lea eax, [edi + 0xc8]
push eax
call fcn.0053a830
mov eax, dword [esp + 0x1c]
add esp, 0xc
mov dword [edi + 0x148], eax
mov esi, dword [edi + 0x14c]
cmp esi, 4
jge 0x510f61
push str.Received_too_short_packet
push ebx
call fcn.004ee730
add esp, 8
mov dword [edi + 0xc], 7
xor eax, eax
mov ecx, dword [esp + 0x98]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.00448b50
add esp, 0x8c
ret
mov edx, dword [edi + 0x15c]
movzx ecx, byte [edx]
movzx eax, byte [edx + 1]
shl ecx, 8
or ecx, eax
mov dword [edi + 0xc], ecx
add ecx, 0xfffffffd
cmp ecx, 3
ja case.default.0x510f82
jmp dword [ecx*4 + 0x511094]
cmp esi, 4
jle case.0x510f82.4
movzx ecx, byte [edx + 2]
movzx eax, byte [edx + 3]
shl ecx, 8
or ecx, eax
movzx eax, word [edi + 0x40]
inc eax
movzx eax, ax
cmp eax, ecx
jne case.0x510f82.4
lea eax, [esi - 4]
push eax
lea eax, [edx + 4]
push eax
push 1
push ebp
call fcn.004ee670
mov esi, eax
add esp, 0x10
test esi, esi
je 0x510fda
push 5
push edi
call fcn.00511a20
add esp, 8
mov eax, esi
jmp 0x510f48
mov eax, dword [edi + 0x14c]
sub eax, 4
cdq
add dword [ebx + 0x98], eax
adc dword [ebx + 0x9c], edx
push dword [ebx + 0x9c]
push dword [ebx + 0x98]
push ebx
call fcn.004fb950
jmp 0x51106a
movzx ecx, byte [edx + 2]
lea eax, [edx + 4]
mov dword [esp + 0x14], eax
add esi, 0xfffffffc
movzx eax, byte [edx + 3]
shl ecx, 8
or ecx, eax
lea eax, [edx + 4]
push esi
push eax
mov dword [edi + 8], ecx
call fcn.00510b80
add esp, 8
cmp eax, esi
jae case.0x510f82.4
push dword [esp + 0x14]
push str.TFTP_error:__s_n
push ebx
call fcn.004ee810
jmp 0x51106a
lea eax, [esi - 2]
push eax
lea eax, [edx + 2]
push eax
push edi
call fcn.00510c30
add esp, 0xc
test eax, eax
je case.0x510f82.4
jmp 0x510f48
push str.Internal_error:_Unexpected_packet
push 0x5b8b2c
push ebx
call fcn.004ee730
add esp, 0xc
push ebp
call fcn.004fbd20
add esp, 4
test eax, eax
je 0x510f46
push 5
push edi
call fcn.00511a20
add esp, 8
mov eax, 0x2a
jmp 0x510f48
Function at 0x520880
Capabilities:
Create new key via cryptacquirecontext
Encrypt data using des via winapi
Encrypt or decrypt via wincrypt

Disassembly:
sub esp, 0x24
mov eax, dword [0x5db100]
xor eax, esp
mov dword [esp + 0x20], eax
push edi
mov edi, dword [esp + 0x30]
lea eax, [esp + 4]
push 0xf0000000
push 1
push 0
push 0
push eax
mov dword [esp + 0x1c], 8
call dword [sym.imp.ADVAPI32.dll_CryptAcquireContextA]
test eax, eax
je 0x520980
push esi
mov esi, dword [esp + 0x38]
push 8
mov dword [esp + 0x18], 0x208
mov dword [esp + 0x1c], 0x6601
mov dl, byte [esi + 1]
mov cl, byte [esi]
mov al, dl
shr al, 1
mov byte [esp + 0x24], cl
shl cl, 7
or al, cl
shl dl, 6
mov cl, byte [esi + 2]
mov byte [esp + 0x25], al
mov al, cl
shr al, 2
or al, dl
shl cl, 5
mov dl, byte [esi + 3]
mov byte [esp + 0x26], al
mov al, dl
shr al, 3
or al, cl
shl dl, 4
mov cl, byte [esi + 4]
mov byte [esp + 0x27], al
mov al, cl
shr al, 4
or al, dl
shl cl, 3
mov dl, byte [esi + 5]
mov byte [esp + 0x28], al
mov al, dl
shr al, 5
or al, cl
shl dl, 2
mov cl, byte [esi + 6]
mov byte [esp + 0x29], al
mov al, cl
shr al, 6
add cl, cl
or al, dl
mov dword [esp + 0x20], 8
mov byte [esp + 0x2a], al
lea eax, [esp + 0x24]
push eax
mov byte [esp + 0x2f], cl
call fcn.00523470
add esp, 8
lea eax, [esp + 0x10]
push eax
push 0
push 0
push 0x14
lea eax, [esp + 0x24]
push eax
push dword [esp + 0x1c]
call dword [sym.imp.ADVAPI32.dll_CryptImportKey]
pop esi
test eax, eax
jne 0x520992
push eax
push dword [esp + 8]
call dword [sym.imp.ADVAPI32.dll_CryptReleaseContext]
xor al, al
pop edi
mov ecx, dword [esp + 0x20]
xor ecx, esp
call fcn.00448b50
add esp, 0x24
ret
mov ecx, dword [esp + 0x2c]
push dword [esp + 8]
mov eax, dword [ecx]
mov dword [edi], eax
mov eax, dword [ecx + 4]
mov dword [edi + 4], eax
lea eax, [esp + 0xc]
push eax
push edi
push 0
push 0
push 0
push dword [esp + 0x24]
call dword [sym.imp.ADVAPI32.dll_CryptEncrypt]
push dword [esp + 0xc]
call dword [sym.imp.ADVAPI32.dll_CryptDestroyKey]
push 0
push dword [esp + 8]
call dword [sym.imp.ADVAPI32.dll_CryptReleaseContext]
mov ecx, dword [esp + 0x24]
mov al, 1
pop edi
xor ecx, esp
call fcn.00448b50
add esp, 0x24
ret