joyce8/EMBER2024-capa huggingface dataset:
Function at 0x41bab0
Capabilities:
Resolve function by parsing pe exports

Disassembly:
sub esp, 0x10
mov ecx, dword [esp + 0x14]
push ebx
push ebp
mov ebp, dword [esp + 0x20]
mov ebx, 0x180
mov eax, dword [ecx]
cmp eax, 0x657050
mov edx, dword [ecx + 8]
push esi
mov esi, 0x140
mov dword [esp + 0x10], edx
cmovne ebx, esi
mov byte [esp + 0xf], 1
add ebx, dword [ecx + 0xc]
mov esi, 0x3cc
cmp eax, 0x657050
mov dword [esp + 0x18], ebx
mov eax, dword [esp + 0x28]
mov ecx, 0x434
cmovne ecx, esi
mov dword [eax], 0
add ecx, ebp
je 0x41bc4d
cmp byte [ecx + 0x3c], 0
je 0x41bc4d
cmp dword [ebp + 0x8d8], 0
je 0x41bc4d
mov eax, dword [ebp + 0x78]
test eax, eax
je 0x41bb32
test byte [eax + 4], 0x10
je 0x41bb32
add eax, 0x78
jmp 0x41bb38
lea eax, [ebp + 0x8dc]
push edi
xor edi, edi
mov dword [esp + 0x18], eax
cmp dword [ebp + 0x4a4], edi
jbe 0x41bc16
xor ebx, ebx
nop dword [eax]
mov esi, dword [ebp + 0x8d8]
add esi, ebx
cmp dword [esi + 0xc], 0
je 0x41bc06
push dword [esi]
push dword [edx + 8]
call fcn.004204a0
add esp, 8
test eax, eax
je 0x41bc02
mov eax, dword [esp + 0x24]
mov ecx, dword [eax + 0xc]
mov eax, dword [esi + 4]
cmp byte [ecx + 0x1c9], 0
jne 0x41bb90
test eax, eax
je 0x41bba4
jmp 0x41bc02
test eax, eax
je 0x41bc02
push eax
push dword [ecx + 0x64]
call fcn.004204a0
add esp, 8
test eax, eax
je 0x41bc02
mov eax, dword [esp + 0x24]
mov ecx, dword [eax + 0xc]
mov eax, dword [esi + 0x1c]
cmp byte [ecx + 0x1ca], 0
jne 0x41bbbe
cmp eax, 0xffffffff
je 0x41bbcb
jmp 0x41bc02
cmp eax, 0xffffffff
je 0x41bc02
cmp dword [ecx + 0x43c], eax
jne 0x41bc02
mov edx, dword [esp + 0x14]
mov eax, dword [edx + 0x10]
cmp eax, dword [esi + 0x18]
jne 0x41bc06
mov eax, dword [ecx + 0x1e0]
push dword [esi + 8]
push dword [eax]
call fcn.004204a0
add esp, 8
test eax, eax
je 0x41bc02
lea eax, [esi + 0x20]
push eax
push dword [esp + 0x20]
call fcn.0041b6e0
add esp, 8
test al, al
jne 0x41bc22
mov edx, dword [esp + 0x14]
inc edi
add ebx, 0x60
cmp edi, dword [ebp + 0x4a4]
jb 0x41bb50
mov al, byte [esp + 0x13]
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
mov eax, dword [esp + 0x18]
mov ecx, dword [esp + 0x2c]
inc dword [eax]
mov eax, dword [eax]
mov dword [esi + 0x14], eax
mov eax, dword [esi + 0xc]
mov dword [ecx], eax
mov ecx, dword [esp + 0x30]
test ecx, ecx
je 0x41bc43
mov eax, dword [esi + 0x10]
mov dword [ecx], eax
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
pop esi
pop ebp
mov al, 1
pop ebx
add esp, 0x10
ret
Function at 0x41dbb0
Capabilities:
Write file on windows

Disassembly:
push esi
mov esi, dword [esp + 8]
cmp byte [esi + 0x6cf], 0
je 0x41dc4d
cmp dword [esi + 0x1a4], 0
je 0x41dc07
push esi
call fcn.00413c30
push 1
push esi
mov byte [esp + 0x14], al
call fcn.00413d70
push dword [esi + 0x154]
mov eax, dword [esi + 0x1a4]
push dword [esp + 0x24]
push dword [esp + 0x24]
push dword [esp + 0x24]
push esi
call eax
push dword [esp + 0x28]
push esi
call fcn.00413d70
add esp, 0x28
pop esi
ret
mov ecx, dword [esp + 0xc]
mov eax, ecx
sub eax, 0
je 0x41dc1c
sub eax, 1
je 0x41dc1c
sub eax, 1
jne 0x41dc4d
push dword [esi + 0x150]
lea eax, [ecx*2 + 0x45ae28]
push 1
add eax, ecx
push 2
push eax
call sub.api_ms_win_crt_stdio_l1_1_0.dll_fwrite
push dword [esi + 0x150]
push 1
push dword [esp + 0x2c]
push dword [esp + 0x2c]
call sub.api_ms_win_crt_stdio_l1_1_0.dll_fwrite
add esp, 0x20
pop esi
ret

Function at 0x41f8a0
Capabilities:
Get common file path

Disassembly:
push ecx
push ebx
push edi
push str.kernel32
xor edi, edi
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov ebx, eax
test ebx, ebx
jne 0x41f8ba
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 0x45b028
push esi
call sub.api_ms_win_crt_string_l1_1_0.dll_strpbrk
add esp, 8
test eax, eax
je 0x41f902
test ebp, ebp
je 0x41f8f3
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 0x41f928
push str.AddDllDirectory
push ebx
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x41f928
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 0x41f9df
mov ecx, esi
lea ebx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x41f945
sub ecx, ebx
lea eax, [edx + 1]
add eax, ecx
push eax
call dword [section..data]
mov ebx, eax
add esp, 4
test ebx, ebx
je 0x41f9d5
push dword [esp + 0x10]
push ebx
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
test eax, eax
je 0x41f9d5
mov ecx, ebx
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x41f977
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 0x41f990
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 0x41f9a0
test ebp, ebp
je 0x41f9cc
push 8
push 0
push ebx
call ebp
push ebx
mov edi, eax
call dword [0x657004]
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 [0x657004]
add esp, 4
pop esi
pop ebp
mov eax, edi
pop edi
pop ebx
pop ecx
ret
Function at 0x422f80
Capabilities:
Create udp socket

Disassembly:
push esi
mov esi, dword [esp + 8]
test esi, esi
je 0x422fbe
mov eax, dword [esi + 0x70]
cmp byte [eax + 0xe8], 0
jne 0x422faf
push 0
call fcn.00422f80
add esp, 4
test al, al
mov eax, dword [esi + 0x70]
setne cl
inc cl
mov byte [eax + 0xe8], cl
mov eax, dword [esi + 0x70]
pop esi
cmp byte [eax + 0xe8], 2
sete al
ret
push 0
push 2
push 0x17
call dword [sym.imp.WS2_32.dll_socket]
cmp eax, 0xffffffff
jne 0x422fd3
xor al, al
pop esi
ret
push eax
call dword [sym.imp.WS2_32.dll_closesocket]
mov al, 1
pop esi
ret
Function at 0x429560
Capabilities:
Move file

Disassembly:
sub esp, 0x20
push ebx
push ebp
push esi
lea eax, [esp + 0xc]
push edi
push eax
call fcn.00416eb0
push dword [esp + 0x38]
movups xmm0, xmmword [eax]
movups xmmword [esp + 0x18], xmm0
call sub.api_ms_win_crt_string_l1_1_0.dll__strdup
push dword [esp + 0x40]
mov edi, eax
call sub.api_ms_win_crt_string_l1_1_0.dll__strdup
mov ebx, dword [sym.imp.KERNEL32.dll_MoveFileExA]
add esp, 0xc
mov esi, eax
push 1
push esi
push edi
call ebx
test eax, eax
jne 0x4295f5
mov ebp, dword [sym.imp.KERNEL32.dll_Sleep]
nop dword [eax + eax]
lea eax, [esp + 0x20]
push eax
call fcn.00416eb0
movups xmm0, xmmword [esp + 0x14]
sub esp, 0xc
mov ecx, esp
sub esp, 0x10
movups xmmword [ecx], xmm0
mov ecx, esp
movups xmm0, xmmword [eax]
movups xmmword [ecx], xmm0
call fcn.00416f60
add esp, 0x20
test edx, edx
ja 0x429619
jb 0x4295e7
cmp eax, 0x3e8
ja 0x429619
push 1
call ebp
push 1
push esi
push edi
call ebx
test eax, eax
je 0x4295b0
test edi, edi
je 0x429602
push edi
call fcn.004568ae
add esp, 4
test esi, esi
je 0x42960f
push esi
call fcn.004568ae
add esp, 4
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x20
ret
test edi, edi
je 0x429626
push edi
call fcn.004568ae
add esp, 4
test esi, esi
je 0x429633
push esi
call fcn.004568ae
add esp, 4
pop edi
pop esi
pop ebp
mov eax, 1
pop ebx
add esp, 0x20
ret
Function at 0x429780
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, 0x54
mov eax, dword [0x657340]
xor eax, esp
mov dword [esp + 0x50], eax
push ebx
mov ebx, dword [esp + 0x68]
push esi
push edi
mov edi, dword [sym.imp.WS2_32.dll_socket]
push 6
push 1
push 2
mov dword [esp + 0x18], 0x10
mov dword [esp + 0x1c], 1
call edi
mov esi, eax
cmp esi, 0xffffffff
je 0x42995e
xorps xmm0, xmm0
mov eax, 2
push 0x7f000001
movlpd qword [esp + 0x38], xmm0
mov word [esp + 0x30], ax
call dword [sym.imp.WS2_32.dll_htonl]
mov dword [esp + 0x30], eax
xor eax, eax
push 4
mov word [esp + 0x32], ax
lea eax, [esp + 0x14]
push eax
push 4
push 0xffff
push esi
mov dword [ebx + 4], 0xffffffff
mov dword [ebx], 0xffffffff
call dword [sym.imp.WS2_32.dll_setsockopt]
cmp eax, 0xffffffff
je 0x42994c
push 0x10
lea eax, [esp + 0x30]
push eax
push esi
call dword [sym.imp.WS2_32.dll_bind]
cmp eax, 0xffffffff
je 0x42994c
lea eax, [esp + 0xc]
push eax
lea eax, [esp + 0x30]
push eax
push esi
call dword [sym.imp.WS2_32.dll_getsockname]
cmp eax, 0xffffffff
je 0x42994c
cmp dword [esp + 0xc], 0x10
jl 0x42994c
push 1
push esi
call dword [sym.imp.WS2_32.dll_listen]
cmp eax, 0xffffffff
je 0x42994c
push 0
push 1
push 2
call edi
mov dword [ebx], eax
cmp eax, 0xffffffff
je 0x42994c
push 0x10
lea ecx, [esp + 0x30]
push ecx
push eax
call dword [sym.imp.WS2_32.dll_connect]
cmp eax, 0xffffffff
je 0x42994c
push 1
push esi
call fcn.0044b9a0
add esp, 8
test eax, eax
js 0x42994c
push 0
push 0x3e8
lea eax, [esp + 0x1c]
mov dword [esp + 0x1c], esi
push 1
push eax
mov dword [esp + 0x28], 0x300
call fcn.00428510
add esp, 0x10
push 0
push 0
push esi
call dword [sym.imp.WS2_32.dll_accept]
mov dword [ebx + 4], eax
cmp eax, 0xffffffff
je 0x42994c
lea eax, [esp + 0x1c]
push eax
call fcn.00416eb0
add esp, 4
movups xmm0, xmmword [eax]
push 0
push 0x10
lea eax, [esp + 0x44]
push eax
push dword [ebx]
movups xmmword [esp + 0x4c], xmm0
call dword [sym.imp.WS2_32.dll_send]
push 0
push 0x10
lea eax, [esp + 0x54]
push eax
push dword [ebx + 4]
call dword [sym.imp.WS2_32.dll_recv]
cmp eax, 0x10
jne 0x42994c
lea ecx, [esp + 0x3c]
lea edx, [esp + 0x4c]
lea edi, [eax - 4]
nop word [eax + eax]
mov eax, dword [ecx]
cmp eax, dword [edx]
jne 0x42994c
add ecx, 4
add edx, 4
sub edi, 4
jae 0x429920
push esi
call dword [sym.imp.WS2_32.dll_closesocket]
pop edi
pop esi
xor eax, eax
pop ebx
mov ecx, dword [esp + 0x50]
xor ecx, esp
call fcn.004554d0
add esp, 0x54
ret
push esi
mov esi, dword [sym.imp.WS2_32.dll_closesocket]
call esi
push dword [ebx]
call esi
push dword [ebx + 4]
call esi
mov ecx, dword [esp + 0x5c]
or eax, 0xffffffff
pop edi
pop esi
pop ebx
xor ecx, esp
call fcn.004554d0
add esp, 0x54
ret
Function at 0x4299b0
Capabilities:
Resolve dns

Disassembly:
sub esp, 0x10
mov eax, dword [esp + 0x20]
push edi
xor edi, edi
mov dword [esp + 0xc], edi
mov dword [eax], edi
lea eax, [esp + 0x10]
push eax
push dword [esp + 0x24]
push dword [esp + 0x24]
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_getaddrinfo]
mov dword [esp + 4], eax
test eax, eax
jne 0x429b3f
push esi
mov esi, dword [esp + 0x14]
test esi, esi
je 0x429b2a
push ebx
push ebp
mov eax, dword [esi + 0x14]
test eax, eax
je 0x429a0c
lea edx, [eax + 1]
nop dword [eax]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x429a00
sub eax, edx
inc eax
jmp 0x429a0e
xor eax, eax
mov ecx, dword [esi + 4]
mov dword [esp + 0x14], eax
cmp ecx, 2
jne 0x429a1f
lea ebp, [ecx + 0xe]
jmp 0x429a2b
cmp ecx, 0x17
jne 0x429acc
lea ebp, [ecx + 5]
cmp dword [esi + 0x18], 0
je 0x429acc
mov ecx, dword [esi + 0x10]
test ecx, ecx
je 0x429acc
cmp ecx, ebp
jb 0x429acc
add eax, 0x20
add eax, ebp
push eax
call dword [section..data]
mov ebx, eax
add esp, 4
test ebx, ebx
je 0x429b1b
mov ecx, dword [esi]
mov dword [ebx], ecx
mov ecx, dword [esi + 4]
mov dword [ebx + 4], ecx
mov ecx, dword [esi + 8]
mov dword [ebx + 8], ecx
mov eax, dword [esi + 0xc]
mov dword [ebx + 0xc], eax
lea eax, [ebx + 0x20]
push ebp
mov dword [ebx + 0x10], ebp
mov dword [ebx + 0x14], 0
mov dword [ebx + 0x1c], 0
mov dword [ebx + 0x18], eax
push dword [esi + 0x18]
push eax
call sub.VCRUNTIME140.dll_memcpy
mov ecx, dword [esp + 0x20]
add esp, 0xc
test ecx, ecx
je 0x429ab8
mov eax, dword [ebx + 0x18]
add eax, ebp
push ecx
mov dword [ebx + 0x14], eax
push dword [esi + 0x14]
push eax
call sub.VCRUNTIME140.dll_memcpy
add esp, 0xc
mov eax, dword [esp + 0x18]
test edi, edi
cmove edi, ebx
test eax, eax
je 0x429ac8
mov dword [eax + 0x1c], ebx
mov dword [esp + 0x18], ebx
mov esi, dword [esi + 0x1c]
test esi, esi
jne 0x4299f2
mov esi, dword [esp + 0x10]
mov eax, dword [esp + 0x1c]
pop ebp
pop ebx
test eax, eax
je 0x429aec
push eax
call dword [sym.imp.WS2_32.dll_freeaddrinfo]
test esi, esi
je 0x429b26
test edi, edi
je 0x429b0b
mov esi, dword [edi + 0x1c]
push edi
call dword [0x657004]
add esp, 4
mov edi, esi
test esi, esi
jne 0x429af4
mov esi, dword [esp + 8]
mov eax, dword [esp + 0x28]
xor edi, edi
mov dword [eax], edi
mov eax, esi
pop esi
pop edi
add esp, 0x10
ret
mov esi, 8
mov dword [esp + 0x10], esi
jmp 0x429adb
test edi, edi
jne 0x429b36
mov esi, 0x2af9
push esi
call dword [sym.imp.WS2_32.dll_WSASetLastError]
mov eax, dword [esp + 0x28]
mov dword [eax], edi
mov eax, esi
pop esi
pop edi
add esp, 0x10
ret

Function at 0x429df0
Capabilities:
Create thread

Disassembly:
push 0
push 0
push dword [esp + 0x10]
push dword [esp + 0x10]
push 0
push 0
call sub.api_ms_win_crt_runtime_l1_1_0.dll__beginthreadex
mov ecx, eax
add esp, 0x18
xor eax, eax
test ecx, ecx
je 0x429e16
cmp ecx, 0xffffffff
cmovne eax, ecx
ret
Function at 0x429e60
Capabilities:
Generate random numbers via winapi

Disassembly:
push ebx
push ebp
push esi
push edi
mov edi, dword [esp + 0x1c]
mov ecx, 0x2b
test edi, edi
je 0x429f0b
mov ebp, dword [esp + 0x14]
mov esi, dword [esp + 0x18]
nop dword [eax]
mov ebx, 4
lea eax, [esp + 0x1c]
push 4
push eax
cmp edi, ebx
push ebp
cmovb ebx, edi
call fcn.0041be30
add esp, 0xc
cmp eax, 4
jne 0x429ec6
cmp byte [0x6584a0], 0
jne 0x429ed2
push 2
push eax
lea eax, [esp + 0x24]
mov dword [esp + 0x24], 0
push eax
push 0
call sub.bcrypt.dll_BCryptGenRandom
neg eax
sbb eax, eax
and eax, 2
mov ecx, eax
test eax, eax
jne 0x429f0d
mov eax, dword [esp + 0x1c]
jmp 0x429eef
imul eax, dword [0x65849c], 0x41c64e6d
add eax, 0x3039
mov dword [0x65849c], eax
rol eax, 0x10
xor ecx, ecx
mov dword [esp + 0x1c], eax
test ebx, ebx
je 0x429f03
mov byte [esi], al
dec edi
inc esi
shr eax, 8
sub ebx, 1
jne 0x429ef3
mov dword [esp + 0x1c], eax
test edi, edi
jne 0x429e80
mov eax, ecx
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x429f20
Capabilities:
Generate random numbers via winapi

Disassembly:
sub esp, 0x8c
mov eax, dword [0x657340]
xor eax, esp
mov dword [esp + 0x88], eax
mov eax, dword [esp + 0x90]
mov edx, dword [esp + 0x98]
mov dword [esp + 4], eax
mov eax, edx
push ebx
and eax, 0xfffffffe
lea ebx, [esp + 0xc]
push ebp
mov ebp, dword [esp + 0x9c]
cmp eax, 0x100
jae 0x42a089
test dl, 1
je 0x42a089
push esi
dec edx
mov esi, ebx
push edi
mov edi, edx
mov dword [esp + 0xa8], edx
shr edi, 1
mov ecx, 0x2b
je 0x42a033
nop word [eax + eax]
push 4
lea eax, [esp + 0x14]
mov ebx, 4
push eax
push dword [esp + 0x1c]
cmp edi, ebx
cmovb ebx, edi
call fcn.0041be30
add esp, 0xc
cmp eax, 4
jne 0x429fd9
cmp byte [0x6584a0], 0
jne 0x429fe9
push 2
push eax
lea eax, [esp + 0x18]
mov dword [esp + 0x18], 0
push eax
push 0
call sub.bcrypt.dll_BCryptGenRandom
neg eax
sbb eax, eax
and eax, 2
mov ecx, eax
test eax, eax
jne 0x42a070
mov eax, dword [esp + 0x10]
jmp 0x42a006
imul eax, dword [0x65849c], 0x41c64e6d
add eax, 0x3039
mov dword [0x65849c], eax
rol eax, 0x10
xor ecx, ecx
mov dword [esp + 0x10], eax
test ebx, ebx
je 0x42a020
nop word [eax + eax]
mov byte [esi], al
dec edi
inc esi
shr eax, 8
sub ebx, 1
jne 0x42a010
mov dword [esp + 0x10], eax
test edi, edi
jne 0x429f90
mov edx, dword [esp + 0xa8]
lea ebx, [esp + 0x18]
mov eax, ecx
test eax, eax
jne 0x42a070
test edx, edx
je 0x42a06a
nop dword [eax]
movzx ecx, byte [ebx]
lea ebx, [ebx + 1]
mov eax, ecx
and ecx, 0xf
shr eax, 4
movzx eax, byte [eax + 0x45c788]
mov byte [ebp], al
movzx eax, byte [ecx + 0x45c788]
mov byte [ebp + 1], al
add ebp, 2
sub edx, 2
jne 0x42a040
mov byte [ebp], 0
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
mov ecx, dword [esp + 0x88]
xor ecx, esp
call fcn.004554d0
add esp, 0x8c
ret
mov ecx, dword [esp + 0x90]
mov eax, 0x2b
pop ebp
pop ebx
xor ecx, esp
call fcn.004554d0
add esp, 0x8c
ret

Function at 0x42a0b0
Capabilities:
Generate random numbers via winapi

Disassembly:
push dword [esp + 8]
push 0
push dword [esp + 0xc]
call sub.VCRUNTIME140.dll_memset
add esp, 0xc
push 2
push dword [esp + 0xc]
push dword [esp + 0xc]
push 0
call sub.bcrypt.dll_BCryptGenRandom
neg eax
sbb eax, eax
and eax, 2
ret
Function at 0x42db70
Capabilities:
Query environment variable

Disassembly:
push ebx
push ebp
xor ebp, ebp
push esi
push edi
lea esi, [ebp + 1]
push esi
push ebp
call dword [0x657008]
mov edi, eax
add esp, 8
test edi, edi
je 0x42dbc7
nop word [eax + eax]
push esi
push edi
push dword [esp + 0x1c]
mov ebp, edi
mov ebx, esi
call dword [sym.imp.KERNEL32.dll_GetEnvironmentVariableA]
mov esi, eax
test esi, esi
je 0x42dbdf
cmp esi, ebx
je 0x42dbdf
cmp esi, 0x8000
ja 0x42dbdf
cmp esi, ebx
jb 0x42dbd8
push esi
push edi
call dword [0x657008]
mov edi, eax
add esp, 8
test edi, edi
jne 0x42db90
push ebp
call dword [0x657004]
add esp, 4
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret
mov eax, edi
pop edi
pop esi
pop ebp
pop ebx
ret
push edi
call dword [0x657004]
add esp, 4
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x42f020
Capabilities:
Send data
Send data on socket

Disassembly:
mov ecx, dword [esp + 0xc]
push ebx
mov ebx, dword [esp + 0xc]
push esi
mov esi, dword [esp + 0xc]
push 0
mov byte [esp + 0x12], cl
lea ecx, [esp + 0x10]
push 3
mov eax, dword [esi + 0xc]
push ecx
mov byte [esp + 0x18], 0xff
mov byte [esp + 0x19], bl
push dword [eax + 0x120]
call dword [sym.imp.WS2_32.dll_send]
test eax, eax
jns 0x42f06c
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push str.Sending_data_failed___d_
push esi
call fcn.0041dc50
add esp, 0xc
push dword [esp + 0x14]
push ebx
push str.SENT
push esi
call fcn.0042ec40
add esp, 0x10
pop esi
pop ebx
ret
Function at 0x42f1c0
Capabilities:
Send data
Send data on socket

Disassembly:
push ecx
cmp dword [esp + 0xc], 0x1f
push ebx
mov ebx, dword [esp + 0xc]
push ebp
mov eax, dword [ebx + 0xc]
mov ebp, dword [ebx + 0x134]
mov dword [esp + 8], eax
jne 0x42f313
push esi
lea ecx, [ebp + 0x1cb4]
push edi
lea edi, [ebp + 0x1eb4]
mov eax, ecx
mov dword [edi], ecx
cmp ecx, edi
jae 0x42f1fd
lea eax, [ecx + 1]
mov byte [ecx], 0xff
mov dword [edi], eax
cmp eax, edi
jae 0x42f211
mov byte [eax], 0xfa
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x42f211
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 + 0x18], eax
movzx eax, word [ebp + 0x1caa]
push eax
call esi
mov edx, dword [esp + 0x18]
movzx ecx, ax
mov eax, dword [edi]
cmp eax, edi
jae 0x42f27b
mov byte [eax], dl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x42f27b
mov byte [eax], dh
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x42f27b
mov byte [eax], cl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x42f27b
shr ecx, 8
mov byte [eax], cl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x42f27b
mov byte [eax], 0xff
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x42f27b
mov byte [eax], 0xf0
mov eax, dword [edi]
inc eax
mov dword [ebp + 0x1eb8], eax
lea esi, [ebp + 0x1cb4]
sub eax, esi
mov dword [edi], esi
sub eax, 2
push eax
lea eax, [ebp + 0x1cb6]
push eax
push 0x3e
push ebx
call fcn.0042ed40
mov eax, dword [esp + 0x20]
add esp, 0x10
mov edi, dword [sym.imp.WS2_32.dll_send]
push 0
push 3
push esi
push dword [eax + 0x120]
call edi
mov esi, dword [sym.imp.WS2_32.dll_WSAGetLastError]
test eax, eax
jns 0x42f2d3
call esi
push eax
push str.Sending_data_failed___d_
push ebx
call fcn.0041dc50
add esp, 0xc
push 4
lea eax, [ebp + 0x1cb7]
push eax
push ebx
call fcn.0042f090
add esp, 0xc
lea eax, [ebp + 0x1cbb]
push 0
push 2
push eax
mov eax, dword [esp + 0x1c]
push dword [eax + 0x120]
call edi
test eax, eax
jns 0x42f311
call esi
push eax
push str.Sending_data_failed___d_
push ebx
call fcn.0041dc50
add esp, 0xc
pop edi
pop esi
pop ebp
pop ebx
pop ecx
ret
Function at 0x4307b0
Capabilities:
Receive data
Receive data on socket

Disassembly:
sub esp, 0x88
mov eax, dword [0x657340]
xor eax, esp
mov dword [esp + 0x84], eax
push ebx
mov ebx, dword [esp + 0x90]
push ebp
push esi
push edi
mov eax, dword [ebx + 0xc]
mov edi, dword [eax + 0x378]
lea eax, [esp + 0x10]
push eax
mov dword [esp + 0x14], 0x80
lea eax, [esp + 0x18]
push eax
mov eax, dword [edi + 0x13c]
push 0
add eax, 4
push eax
push dword [edi + 0x148]
push dword [edi + 0x14]
call dword [sym.imp.WS2_32.dll_recvfrom]
cmp dword [edi + 0x130], 0
mov dword [edi + 0x134], eax
jne 0x430836
push dword [esp + 0x10]
lea eax, [esp + 0x18]
push eax
lea eax, [edi + 0xb0]
push eax
call sub.VCRUNTIME140.dll_memcpy
mov eax, dword [esp + 0x1c]
add esp, 0xc
mov dword [edi + 0x130], eax
mov esi, dword [edi + 0x134]
cmp esi, 4
jge 0x430871
push str.Received_too_short_packet
push ebx
call fcn.0041dc50
add esp, 8
mov dword [edi + 0xc], 7
xor eax, eax
mov ecx, dword [esp + 0x94]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.004554d0
add esp, 0x88
ret
mov edx, dword [edi + 0x148]
movzx eax, byte [edx]
movzx ecx, byte [edx + 1]
shl eax, 8
or ecx, eax
mov dword [edi + 0xc], ecx
dec ecx
cmp ecx, 5
ja case.0x430890.1
jmp dword [ecx*4 + 0x43099c]
cmp esi, 4
jle case.0x430890.4
movzx ecx, byte [edx + 2]
movzx eax, byte [edx + 3]
shl ecx, 8
or ecx, eax
movzx eax, word [edi + 0x144]
inc eax
movzx eax, ax
cmp eax, ecx
jne case.0x430890.4
lea eax, [esi - 4]
push eax
lea eax, [edx + 4]
push eax
push 1
push ebx
call fcn.0041ddb0
mov esi, eax
add esp, 0x10
test esi, esi
je 0x4308eb
push 5
push edi
call fcn.004312c0
add esp, 8
mov eax, esi
jmp 0x430858
mov eax, dword [edi + 0x134]
sub eax, 4
cdq
add dword [ebx + 0x90], eax
adc dword [ebx + 0x94], edx
push dword [ebx + 0x94]
push dword [ebx + 0x90]
push ebx
call fcn.00427230
jmp 0x430971
movzx ecx, byte [edx + 2]
lea ebp, [edx + 4]
movzx eax, byte [edx + 3]
add esi, 0xfffffffc
shl ecx, 8
or ecx, eax
push esi
push ebp
mov dword [edi + 8], ecx
call fcn.00431330
add esp, 8
cmp eax, esi
jae case.0x430890.4
push ebp
push str.TFTP_error:__s
push ebx
call fcn.0041dd20
jmp 0x430971
lea eax, [esi - 2]
push eax
lea eax, [edx + 2]
push eax
push edi
call fcn.00430560
add esp, 0xc
test eax, eax
je case.0x430890.4
jmp 0x430858
push str.Internal_error:_Unexpected_packet
push 0x45a1a8
push ebx
call fcn.0041dc50
add esp, 0xc
push ebx
call fcn.00427790
add esp, 4
test eax, eax
je 0x430856
push 5
push edi
call fcn.004312c0
add esp, 8
mov eax, 0x2a
jmp 0x430858
Function at 0x437b60
Capabilities:
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x8c
mov eax, dword [0x657340]
xor eax, esp
mov dword [esp + 0x88], eax
push ebx
push esi
push edi
mov edi, dword [esp + 0x9c]
lea eax, [esp + 0x10]
push eax
lea eax, [esp + 0x18]
push eax
mov ebx, dword [edi + 0xc]
mov esi, dword [ebx + 0x124]
push esi
mov dword [esp + 0x18], 0xffffffff
mov dword [esp + 0x1c], 0x80
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x437bcb
lea eax, [esp + 0x10]
mov dword [esp + 0x10], 0x80
push eax
lea eax, [esp + 0x18]
push eax
push esi
call dword [sym.imp.WS2_32.dll_accept]
mov dword [esp + 0xc], eax
jmp 0x437bcf
mov eax, dword [esp + 0xc]
cmp eax, 0xffffffff
jne 0x437bff
push str.Error_accept__ing_server_connect
push edi
call fcn.0041dc50
add esp, 8
mov eax, 0x1e
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x88]
xor ecx, esp
call fcn.004554d0
add esp, 0x8c
ret
push str.Connection_accepted_from_server
push edi
call fcn.0041dd20
mov byte [ebx + 0x1cd], 0
push 1
push dword [esp + 0x18]
call fcn.0044b9a0
lea eax, [esp + 0x1c]
push eax
push 1
push ebx
push edi
call fcn.00442e30
add esp, 0x20
test eax, eax
jne 0x437c99
cmp dword [edi + 0x1ac], eax
je 0x437c97
push 1
push edi
call fcn.00413d70
mov eax, dword [edi + 0x1ac]
push 1
push dword [esp + 0x18]
push dword [edi + 0x1b0]
call eax
push 0
push edi
mov esi, eax
call fcn.00413d70
add esp, 0x1c
test esi, esi
je 0x437c97
push 1
push edi
call fcn.0041d600
push 1
push ebx
push edi
call fcn.0041d470
add esp, 0x14
mov eax, 0x2a
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x88]
xor ecx, esp
call fcn.004554d0
add esp, 0x8c
ret
xor eax, eax
mov ecx, dword [esp + 0x94]
pop edi
pop esi
pop ebx
xor ecx, esp
call fcn.004554d0
add esp, 0x8c
ret