joyce8/EMBER2024-capa huggingface dataset:
Function at 0x53ae70
Capabilities:
Create process on windows

Disassembly:
sub esp, 0x7d0
push esi
push edi
mov esi, edx
mov edi, ecx
mov edx, 0x3e7
lea ecx, [esp + 8]
call fcn.0041ef30
mov edx, 0x3e7
lea ecx, [esp + 0x3f0]
call fcn.0041ef30
call fcn.0041d5b0
cmp esi, 2
je 0x53af39
xor eax, eax
cmp esi, 1
sete al
mov esi, eax
mov eax, dword [0x59bdd8]
test eax, eax
je 0x53aed6
mov eax, dword [0x59bddc]
test eax, eax
jne 0x53af39
test esi, esi
jne 0x53aed6
push edi
push str.__s_____0x0_0x4_________
lea ecx, [esp + 0x10]
push ecx
jmp 0x53aee1
push edi
push str.__s_____0xFFFFFFFF_0x4_________
lea edx, [esp + 0x10]
push edx
call dword [sym.imp.USER32.dll_wsprintfA]
add esp, 0xc
push 0xffffffffffffffff
push 2
lea eax, [esp + 0x3f8]
push eax
lea edx, [esp + 0x14]
mov ecx, str.WWW_OpenURL
call fcn.00467140
test eax, eax
je 0x53af39
mov eax, dword [0x59bddc]
test eax, eax
je 0x53af8f
test esi, esi
jne 0x53af8f
push 0xffffffffffffffff
push 2
lea ecx, [esp + 0x3f8]
push ecx
mov edx, str.0xFFFFFFFF_0x0
mov ecx, str.WWW_Activate
call fcn.00467140
pop edi
pop esi
add esp, 0x7d0
ret
call fcn.00508980
mov al, byte [0x5ae628]
test al, al
push 5
push 0x5a9798
jne 0x53af6c
mov edx, dword [0x5b4314]
push 0
push edi
push str.open
push edx
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
pop edi
pop esi
add esp, 0x7d0
ret
mov eax, dword [0x5b4314]
push edi
push 0x5ae628
push str.open
push eax
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
cmp eax, 0x20
ja 0x53af8f
xor ecx, ecx
call fcn.0041d520
pop edi
pop esi
add esp, 0x7d0
ret

Function at 0x53bb90
Capabilities:
Capture screenshot
Extract resource via kernel32 functions
Hide graphical window

Disassembly:
xor ecx, ecx
call fcn.00531d40
mov ecx, dword [0x5b4324]
test ecx, ecx
je 0x53bba8
xor edx, edx
jmp fcn.004973e0
call fcn.004e27f0
test eax, eax
jne 0x53bbb8
xor ecx, ecx
jmp fcn.0041d520
push eax
push 0
push 0
mov edx, 6
mov ecx, str.URL_List
call fcn.00548f10
test eax, eax
mov dword [0x5b4324], eax
je 0x53bbdf
mov ecx, 0x583b74
jmp fcn.0053b910
ret
Function at 0x431000
Capabilities:
Encode data using xor
Packed with generic packer

Disassembly:
pushal
nop
nop
nop
nop
nop
mov eax, section..text
nop
nop
nop
push 4
nop
nop
nop
nop
nop
nop
pop edi
nop
nop
nop
cmp eax, 0
nop
je 0x431072
nop
nop
nop
nop
nop
mov ebx, 0x40915c
nop
nop
nop
nop
mov ecx, ebx
nop
nop
nop
sub ecx, eax
nop
nop
xor edx, edx
nop
nop
nop
nop
nop
push eax
nop
nop
nop
nop
nop
mov eax, ecx
nop
nop
nop
nop
div edi
nop
nop
xchg ecx, eax
nop
nop
nop
nop
nop
nop
pop eax
nop
nop
nop
nop
nop
mov esi, 0x1cae708e
xor dword [eax], esi
nop
nop
nop
nop
nop
add eax, edi
nop
nop
nop
nop
nop
nop
nop
loop 0x431060
mov eax, section..data
nop
nop
nop
nop
cmp eax, 0
je 0x4310d2
nop
nop
nop
nop
mov ebx, 0x42f3f8
nop
nop
nop
mov ecx, ebx
nop
nop
nop
nop
sub ecx, eax
nop
nop
xor edx, edx
nop
nop
nop
nop
push eax
nop
nop
nop
nop
nop
nop
nop
nop
mov eax, ecx
nop
div edi
nop
nop
nop
nop
xchg ecx, eax
nop
nop
nop
nop
nop
nop
nop
nop
nop
pop eax
nop
nop
mov esi, 0x58466813
nop
nop
nop
nop
xor dword [eax], esi
nop
add eax, edi
nop
nop
nop
nop
loop 0x4310c0
nop
nop
nop
nop
nop
nop
popal
nop
nop
jmp 0x401219
Function at 0x4052e0
Capabilities:
Initialize winsock library

Disassembly:
mov al, byte [esp + 4]
sub esp, 0x190
test al, 2
je 0x405331
lea eax, [esp]
push eax
push 0x202
call dword [sym.imp.WS2_32.dll_WSAStartup]
test eax, eax
je 0x40530e
mov eax, 2
add esp, 0x190
ret
mov ax, word [esp]
cmp al, 2
jne 0x40531f
xor ecx, ecx
mov cl, ah
cmp cl, al
je 0x405331
call dword [sym.imp.WS2_32.dll_WSACleanup]
mov eax, 2
add esp, 0x190
ret
call fcn.00417d30
test eax, eax
jne 0x40538d
push str.iphlpapi.dll
call fcn.00405540
add esp, 4
mov dword [0xa0000c], eax
test eax, eax
je 0x405365
push str.if_nametoindex
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x405365
mov dword [0xa00010], eax
push 3
push 2
push 0
push 6
call fcn.004053e0
add esp, 0x10
neg eax
sbb eax, eax
push 0xa00c58
neg eax
mov dword [0xa00c60], eax
call dword [sym.imp.KERNEL32.dll_QueryPerformanceFrequency]
xor eax, eax
add esp, 0x190
ret

Function at 0x405540
Capabilities:
Get common file path

Disassembly:
push ecx
push edi
push str.kernel32
mov dword [esp + 8], 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov edi, eax
test edi, edi
jne 0x40555e
pop edi
pop ecx
ret
push ebx
mov ebx, dword [sym.imp.KERNEL32.dll_GetProcAddress]
push ebp
push esi
push str.LoadLibraryExA
push edi
call ebx
mov esi, dword [esp + 0x18]
push 0x9f2384
push esi
mov ebp, eax
call fcn.009beda0
add esp, 8
test eax, eax
je 0x4055ad
test ebp, ebp
je 0x40559c
push 8
push 0
push esi
call ebp
pop esi
pop ebp
pop ebx
mov dword [esp + 4], eax
pop edi
pop ecx
ret
push esi
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
pop esi
pop ebp
pop ebx
mov dword [esp + 4], eax
pop edi
pop ecx
ret
test ebp, ebp
je 0x4055d1
push str.AddDllDirectory
push edi
call ebx
test eax, eax
je 0x4055d1
push 0x800
push 0
push esi
call ebp
pop esi
pop ebp
pop ebx
mov dword [esp + 4], eax
pop edi
pop ecx
ret
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
mov edx, eax
test edx, edx
mov dword [esp + 0x18], edx
je 0x40567d
mov edi, esi
or ecx, 0xffffffff
xor eax, eax
repne scasb al, byte es:[edi]
not ecx
dec ecx
lea eax, [ecx + edx + 1]
push eax
call dword [0x9f2290]
mov ebx, eax
add esp, 4
test ebx, ebx
je 0x405673
mov ecx, dword [esp + 0x18]
push ecx
push ebx
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
test eax, eax
je 0x405673
mov edi, ebx
or ecx, 0xffffffff
xor eax, eax
mov dx, word [0x9f2370]
repne scasb al, byte es:[edi]
not ecx
dec ecx
mov edi, ebx
mov word [ecx + ebx], dx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
dec ecx
mov edi, esi
mov edx, ecx
or ecx, 0xffffffff
add edx, ebx
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov eax, ecx
mov esi, edi
mov edi, edx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
test ebp, ebp
rep movsb byte es:[edi], byte [esi]
je 0x405668
push 8
push 0
push ebx
call ebp
jmp 0x40566f
push ebx
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov dword [esp + 0x10], eax
push ebx
call dword [0x9f2294]
add esp, 4
mov eax, dword [esp + 0x10]
pop esi
pop ebp
pop ebx
pop edi
pop ecx
ret
Function at 0x40e3e0
Capabilities:
Send data
Send data on socket

Disassembly:
mov eax, dword [esp + 8]
sub esp, 0x100
push ebx
push ebp
push esi
mov esi, dword [esp + 0x110]
push edi
push eax
mov edi, dword [esi + eax*4 + 0x408]
push esi
call fcn.0040e4a0
mov eax, dword [esp + 0x128]
mov ecx, dword [esp + 0x124]
add esp, 8
push 0
push eax
push ecx
push edi
call dword [sym.imp.WS2_32.dll_send]
mov ebx, dword [esp + 0x124]
mov edi, eax
cmp edi, 0xffffffff
mov dword [ebx], 0
jne 0x40e485
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov ebp, eax
cmp ebp, 0x2733
jne 0x40e456
pop edi
pop esi
mov dword [ebx], 0x51
pop ebp
xor eax, eax
pop ebx
add esp, 0x100
ret
lea edx, [esp + 0x10]
push 0x100
push edx
push ebp
call fcn.0043a720
push eax
mov eax, dword [esi]
push str.Send_failure:__s
push eax
call fcn.0040e1d0
mov ecx, dword [esi]
add esp, 0x18
mov dword [ecx + 0xdc4], ebp
mov dword [ebx], 0x37
mov eax, edi
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x100
ret

Function at 0x40e4a0
Capabilities:
Receive data
Receive data on socket

Disassembly:
mov eax, dword [esp + 8]
push ebx
mov ebx, dword [esp + 8]
push ebp
push esi
lea esi, [eax + 0x43]
shl esi, 4
add esi, ebx
push edi
mov ebp, dword [ebx + eax*4 + 0x408]
mov edi, dword [esi + 4]
mov ecx, dword [esi + 8]
sub edi, ecx
mov ecx, dword [ebx + 0x5a8]
test byte [ecx + 0x40], 3
je 0x40e55a
cmp dword [ebx + eax*4 + 0x420], 0x40e5a0
jne 0x40e55a
cmp dword [esi], 0
je 0x40e4e9
test edi, edi
je 0x40e55a
push 0
push 0
push 0xffffffffffffffff
push 0xffffffffffffffff
push ebp
call fcn.00437050
add esp, 0x14
cmp eax, 0xffffffff
je 0x40e55a
test al, 1
je 0x40e55a
cmp dword [esi], 0
jne 0x40e52c
mov edx, dword [ebx]
mov eax, dword [edx + 0x930]
shl eax, 1
push eax
mov dword [esi + 4], eax
call dword [0x9f2290]
mov edi, dword [esi + 4]
add esp, 4
mov dword [esi], eax
xor eax, eax
mov dword [esi + 8], eax
mov dword [esi + 0xc], eax
mov eax, dword [esi]
test eax, eax
je 0x40e553
mov ebx, dword [esi + 8]
push 0
add eax, ebx
push edi
push eax
push ebp
call dword [sym.imp.WS2_32.dll_recv]
test eax, eax
jle 0x40e55a
mov ecx, dword [esi + 8]
pop edi
add ecx, eax
mov dword [esi + 8], ecx
pop esi
pop ebp
pop ebx
ret
mov dword [esi + 4], 0
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x40ea00
Capabilities:
Receive data
Receive data on socket

Disassembly:
mov eax, dword [esp + 0xc]
mov ecx, dword [esp + 8]
mov edx, dword [esp + 4]
push 0
push eax
push ecx
push edx
call dword [sym.imp.WS2_32.dll_recv]
cmp eax, 0xffffffff
jne 0x40ea43
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
xor ecx, ecx
cmp eax, 0x2733
mov edx, dword [esp + 0x10]
sete cl
mov eax, ecx
mov dword [edx], 0
neg eax
sbb eax, eax
and eax, 0x19
add eax, 0x38
ret
mov ecx, dword [esp + 0x10]
mov dword [ecx], eax
xor eax, eax
ret
Function at 0x40fc90
Capabilities:
Encode data using xor
Hash data using djb2

Disassembly:
mov eax, dword [esp + 8]
push ebx
push esi
mov esi, dword [esp + 0xc]
push edi
mov edi, 0x1505
lea ebx, [esi + eax]
cmp esi, ebx
jae 0x40fcc5
mov al, byte [esi]
inc esi
push eax
call fcn.00414be0
mov edx, edi
add esp, 4
movsx ecx, al
shl edx, 5
add edx, edi
xor ecx, edx
cmp esi, ebx
mov edi, ecx
jb 0x40fca7
mov eax, edi
pop edi
pop esi
and eax, 0xff
pop ebx
ret

Function at 0x412cd0
Capabilities:
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x208
push ebx
mov ebx, dword [esp + 0x210]
push ebp
push esi
mov eax, dword [ebx + 0x2f8]
push edi
cmp eax, 3
jne 0x412ea0
mov eax, dword [ebx + 0x518]
test eax, eax
jne 0x412ea0
mov eax, dword [ebx + 0x580]
test eax, eax
jne 0x412ea0
mov esi, dword [esp + 0x220]
mov ebp, dword [ebx]
lea eax, [esp + 0x10]
lea ecx, [esp + 0x98]
push eax
mov edi, 0x80
push ecx
push esi
mov dword [esp + 0x1c], edi
call dword [sym.imp.WS2_32.dll_getpeername]
test eax, eax
je 0x412d6c
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
lea edx, [esp + 0x118]
mov esi, eax
push 0x100
push edx
push esi
call fcn.0043a720
push eax
push esi
push str.getpeername___failed_with_errno__d:__s
push ebp
call fcn.0040e1d0
add esp, 0x1c
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x208
ret
mov dword [esp + 0x14], edi
mov ecx, 0x20
xor eax, eax
lea edi, [esp + 0x18]
rep stosd dword es:[edi], eax
lea eax, [esp + 0x14]
lea ecx, [esp + 0x18]
push eax
push ecx
push esi
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x412dc8
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
lea edx, [esp + 0x118]
mov esi, eax
push 0x100
push edx
push esi
call fcn.0043a720
push eax
push esi
push str.getsockname___failed_with_errno__d:__s
push ebp
call fcn.0040e1d0
add esp, 0x1c
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x208
ret
mov ecx, dword [esp + 0x10]
lea eax, [ebx + 0x3a0]
lea esi, [ebx + 0x372]
push eax
push esi
lea edx, [esp + 0xa0]
push ecx
push edx
call fcn.00412c60
add esp, 0x10
test eax, eax
jne 0x412e2e
lea eax, [esp + 0x118]
push 0x100
push eax
call fcn.009bed8a
mov ecx, dword [eax]
push ecx
call fcn.0043a720
add esp, 0xc
push eax
call fcn.009bed8a
mov edx, dword [eax]
push edx
push str.ssrem_inet_ntop___failed_with_errno__d:__s
push ebp
call fcn.0040e1d0
add esp, 0x10
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x208
ret
lea edi, [ebx + 0x2c4]
mov ecx, 0xb
rep movsd dword es:[edi], dword [esi]
mov edx, dword [esp + 0x14]
lea eax, [ebx + 0x3d4]
lea ecx, [ebx + 0x3a4]
push eax
push ecx
lea eax, [esp + 0x20]
push edx
push eax
movsw word es:[edi], word [esi]
call fcn.00412c60
add esp, 0x10
test eax, eax
jne 0x412ea0
lea ecx, [esp + 0x118]
push 0x100
push ecx
call fcn.009bed8a
mov edx, dword [eax]
push edx
call fcn.0043a720
add esp, 0xc
push eax
call fcn.009bed8a
mov eax, dword [eax]
push eax
push str.ssloc_inet_ntop___failed_with_errno__d:__s
push ebp
call fcn.0040e1d0
add esp, 0x10
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x208
ret
push ebx
call fcn.00412be0
add esp, 4
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x208
ret
Function at 0x4135b0
Capabilities:
Set socket configuration

Disassembly:
sub esp, 0xc
mov eax, dword [0xa000f0]
push esi
test eax, eax
mov dword [esp + 8], 0x4020
mov dword [esp + 4], 0
mov dword [esp + 0xc], 4
jne 0x413603
push 3
push 2
push eax
push 6
call fcn.004053e0
add esp, 0x10
test eax, eax
je 0x4135f7
mov dword [0xa000f0], 2
pop esi
add esp, 0xc
ret
mov dword [0xa000f0], 1
jmp 0x413608
cmp eax, 2
je 0x41364f
mov esi, dword [esp + 0x14]
lea eax, [esp + 0xc]
lea ecx, [esp + 4]
push eax
push ecx
push 0x1001
push 0xffff
push esi
call dword [sym.imp.WS2_32.dll_getsockopt]
test eax, eax
jne 0x413637
mov edx, dword [esp + 4]
mov eax, dword [esp + 8]
cmp edx, eax
jg 0x41364f
lea eax, [esp + 8]
push 4
push eax
push 0x1001
push 0xffff
push esi
call dword [sym.imp.WS2_32.dll_setsockopt]
pop esi
add esp, 0xc
ret
Function at 0x413ea0
Capabilities:
Set socket configuration

Disassembly:
sub esp, 0x104
mov eax, dword [esp + 0x108]
mov edx, dword [esp + 0x10c]
push esi
lea ecx, [esp + 4]
mov esi, dword [eax]
push 4
push ecx
push 1
push 6
push edx
mov dword [esp + 0x18], 1
call dword [sym.imp.WS2_32.dll_setsockopt]
test eax, eax
jge 0x413efa
lea eax, [esp + 8]
push 0x100
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0043a720
push eax
push str.Could_not_set_TCP_NODELAY:__s_n
push esi
call fcn.0040e110
add esp, 0x18
pop esi
add esp, 0x104
ret

Function at 0x414070
Capabilities:
Receive data
Receive data on socket

Disassembly:
mov eax, dword [esp + 4]
mov ecx, dword [eax + 0x45c]
test ecx, ecx
je 0x41408c
push eax
call fcn.004062c0
add esp, 4
test eax, eax
jne 0x4140af
ret
mov eax, dword [eax + 0x408]
cmp eax, 0xffffffff
jne 0x41409a
xor eax, eax
ret
push 2
lea ecx, [esp + 8]
push 1
push ecx
push eax
call dword [sym.imp.WS2_32.dll_recv]
test eax, eax
jne 0x4140af
ret
mov eax, 1
ret

Function at 0x4151e0
Capabilities:
Create thread

Disassembly:
mov eax, dword [esp + 8]
mov ecx, dword [esp + 4]
push 0
push 0
push eax
push ecx
push 0
push 0
call fcn.009c0a58
add esp, 0x18
test eax, eax
je 0x415203
cmp eax, 0xffffffff
jne 0x415205
xor eax, eax
ret
Function at 0x4166e0
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, 0x30
push ebx
push ebp
push esi
mov esi, dword [sym.imp.WS2_32.dll_socket]
push edi
push 6
push 1
push 2
mov dword [esp + 0x20], 0x10
mov dword [esp + 0x1c], 1
call esi
mov ebp, eax
cmp ebp, 0xffffffff
jne 0x416716
pop edi
pop esi
pop ebp
or eax, eax
pop ebx
add esp, 0x30
ret
xor eax, eax
push 0x7f000001
mov dword [esp + 0x1c], eax
mov word [esp + 0x1c], 2
mov dword [esp + 0x20], eax
mov dword [esp + 0x24], eax
mov dword [esp + 0x28], eax
call dword [sym.imp.WS2_32.dll_htonl]
mov ebx, dword [esp + 0x50]
lea ecx, [esp + 0x10]
push 4
push ecx
push 4
push 0xffff
push ebp
mov dword [esp + 0x30], eax
mov word [esp + 0x2e], 0
mov dword [ebx + 4], 0xffffffff
mov dword [ebx], 0xffffffff
call dword [sym.imp.WS2_32.dll_setsockopt]
cmp eax, 0xffffffff
je 0x416850
lea edx, [esp + 0x18]
push 0x10
push edx
push ebp
call dword [sym.imp.WS2_32.dll_bind]
cmp eax, 0xffffffff
je 0x416850
lea eax, [esp + 0x14]
lea ecx, [esp + 0x18]
push eax
push ecx
push ebp
call dword [sym.imp.WS2_32.dll_getsockname]
cmp eax, 0xffffffff
je 0x416850
push 1
push ebp
call dword [sym.imp.WS2_32.dll_listen]
cmp eax, 0xffffffff
je 0x416850
push 0
push 1
push 2
call esi
cmp eax, 0xffffffff
mov dword [ebx], eax
je 0x416850
lea edx, [esp + 0x18]
push 0x10
push edx
push eax
call dword [sym.imp.WS2_32.dll_connect]
cmp eax, 0xffffffff
je 0x416850
push 0
push 0
push ebp
call dword [sym.imp.WS2_32.dll_accept]
cmp eax, 0xffffffff
mov dword [ebx + 4], eax
je 0x416850
push ebx
push 0x9f37a4
lea eax, [esp + 0x30]
push 0xc
push eax
call fcn.00417b40
lea edi, [esp + 0x38]
or ecx, 0xffffffff
xor eax, eax
add esp, 0x10
repne scasb al, byte es:[edi]
mov edx, dword [ebx]
push eax
not ecx
dec ecx
mov esi, ecx
lea ecx, [esp + 0x2c]
push esi
push ecx
push edx
call dword [sym.imp.WS2_32.dll_send]
cmp eax, esi
jne 0x416850
mov ecx, dword [ebx + 4]
push 0
lea eax, [esp + 0x38]
push 0xc
push eax
push ecx
call dword [sym.imp.WS2_32.dll_recv]
cmp eax, esi
jne 0x416850
mov ecx, esi
lea edi, [esp + 0x34]
lea esi, [esp + 0x28]
xor edx, edx
repe cmpsb byte [esi], byte es:[edi]
je 0x41686f
mov esi, dword [sym.imp.WS2_32.dll_closesocket]
push ebp
call esi
mov eax, dword [ebx]
push eax
call esi
mov ecx, dword [ebx + 4]
push ecx
call esi
pop edi
pop esi
pop ebp
or eax, 0xffffffff
pop ebx
add esp, 0x30
ret
push ebp
call dword [sym.imp.WS2_32.dll_closesocket]
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 0x30
ret
Function at 0x41b210
Capabilities:
Hash data via wincrypt
Initialize hashing via wincrypt

Disassembly:
sub esp, 0x10
push ebp
mov ebp, dword [esp + 0x20]
push esi
mov esi, dword [esp + 0x28]
mov ecx, esi
push edi
mov edx, ecx
xor eax, eax
mov edi, ebp
push 0xf0000040
shr ecx, 2
rep stosd dword es:[edi], eax
mov ecx, edx
mov dword [esp + 0x14], 0
and ecx, 3
mov dword [esp + 0x10], 0
rep stosb byte es:[edi], al
mov eax, dword [esp + 0x34]
lea ecx, [esp + 0x14]
push eax
push 0
push 0
push ecx
mov dword [esp + 0x28], 0
mov dword [esp + 0x2c], 4
mov dword [esp + 0x40], esi
call dword [sym.imp.ADVAPI32.dll_CryptAcquireContextA]
test eax, eax
je 0x41b305
mov eax, dword [esp + 0x34]
mov ecx, dword [esp + 0x10]
lea edx, [esp + 0xc]
push edx
push 0
push 0
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_CryptCreateHash]
test eax, eax
je 0x41b2e5
mov edx, dword [esp + 0x24]
mov eax, dword [esp + 0x20]
mov ecx, dword [esp + 0xc]
push 0
push edx
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_CryptHashData]
test eax, eax
je 0x41b2e5
mov ecx, dword [esp + 0xc]
mov edi, dword [sym.imp.ADVAPI32.dll_CryptGetHashParam]
lea edx, [esp + 0x18]
push 0
lea eax, [esp + 0x18]
push edx
push eax
push 4
push ecx
call edi
test eax, eax
je 0x41b2e5
cmp esi, dword [esp + 0x14]
jb 0x41b2e5
mov eax, dword [esp + 0xc]
lea edx, [esp + 0x2c]
push 0
push edx
push ebp
push 2
push eax
call edi
mov eax, dword [esp + 0xc]
test eax, eax
je 0x41b2f4
push eax
call dword [sym.imp.ADVAPI32.dll_CryptDestroyHash]
mov eax, dword [esp + 0x10]
test eax, eax
je 0x41b305
push 0
push eax
call dword [sym.imp.ADVAPI32.dll_CryptReleaseContext]
pop edi
pop esi
pop ebp
add esp, 0x10
ret

Function at 0x41c890
Capabilities:
Hash data via wincrypt

Disassembly:
mov eax, dword [esp + 0xc]
mov edx, dword [esp + 4]
mov ecx, dword [esp + 8]
push 0
push eax
mov eax, dword [edx + 4]
push ecx
push eax
call dword [sym.imp.ADVAPI32.dll_CryptHashData]
ret

Function at 0x41cb60
Capabilities:
Query environment variable

Disassembly:
push ebx
push ebp
push esi
mov esi, 1
push edi
xor ebp, ebp
push esi
push ebp
call dword [0x9f2298]
mov edi, eax
add esp, 8
test edi, edi
je 0x41cbb4
mov eax, dword [esp + 0x14]
push esi
push edi
push eax
mov ebp, edi
mov ebx, esi
call dword [sym.imp.KERNEL32.dll_GetEnvironmentVariableA]
mov esi, eax
test esi, esi
je 0x41cbcc
cmp esi, ebx
je 0x41cbcc
cmp esi, 0x8000
ja 0x41cbcc
cmp esi, ebx
jb 0x41cbc5
push esi
push edi
call dword [0x9f2298]
mov edi, eax
add esp, 8
test edi, edi
jne 0x41cb7c
push ebp
call dword [0x9f2294]
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 [0x9f2294]
add esp, 4
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret
Function at 0x424e90
Capabilities:
Receive data
Receive data on socket

Disassembly:
sub esp, 0x88
mov eax, dword [esp + 0x8c]
push ebx
push ebp
push esi
mov ebx, dword [eax + 0x780]
push edi
mov edi, dword [eax]
mov dword [esp + 0x10], 0x80
mov edx, dword [ebx + 0x144]
lea eax, [esp + 0x10]
lea ebp, [ebx + 0x14c]
lea ecx, [esp + 0x18]
push eax
push ecx
mov eax, dword [ebp]
mov ecx, dword [ebx + 0x14]
add edx, 4
push 0
push edx
push eax
push ecx
mov dword [esp + 0x2c], edi
call dword [sym.imp.WS2_32.dll_recvfrom]
mov dword [ebx + 0x13c], eax
mov eax, dword [ebx + 0x138]
test eax, eax
jne 0x424f19
mov ecx, dword [esp + 0x10]
lea esi, [esp + 0x18]
mov edx, ecx
lea edi, [ebx + 0xb8]
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov eax, dword [esp + 0x10]
mov edi, dword [esp + 0x14]
mov dword [ebx + 0x138], eax
mov eax, dword [ebx + 0x13c]
mov esi, 4
cmp eax, esi
jge 0x424f4a
push str.Received_too_short_packet
push edi
call fcn.0040e1d0
add esp, 8
mov dword [ebx + 0xc], 7
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 0x88
ret
push ebp
call fcn.004250c0
and eax, 0xffff
add esp, 4
mov dword [ebx + 0xc], eax
add eax, 0xfffffffd
cmp eax, 3
ja case.default.0x424f67
jmp dword [eax*4 + 0x4250b0]
cmp dword [ebx + 0x13c], esi
jle case.0x424f67.4
push ebp
call fcn.00424a70
mov cx, word [ebx + 0x30]
add esp, 4
inc ecx
cmp cx, ax
jne case.0x424f67.4
mov edx, dword [ebx + 0x13c]
mov eax, dword [ebp]
mov ecx, dword [esp + 0x9c]
sub edx, esi
add eax, esi
push edx
push eax
push 1
push ecx
call fcn.0040e700
mov esi, eax
add esp, 0x10
test esi, esi
je 0x424fd0
push 5
push ebx
call fcn.004241c0
add esp, 8
mov eax, esi
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x88
ret
mov eax, dword [ebx + 0x13c]
mov ecx, dword [edi + 0x98]
sub eax, 4
cdq
add ecx, eax
mov dword [edi + 0x98], ecx
mov ebp, dword [edi + 0x9c]
adc ebp, edx
mov dword [edi + 0x9c], ebp
mov eax, dword [edi + 0x98]
mov edx, ebp
push edx
push eax
push edi
call fcn.0041b680
jmp 0x425079
push ebp
call fcn.00424a70
mov ebp, dword [ebp]
and eax, 0xffff
add ebp, esi
mov esi, dword [ebx + 0x13c]
sub esi, 4
mov dword [ebx + 8], eax
push esi
push ebp
call fcn.004250e0
add esp, 0xc
cmp eax, esi
jae case.0x424f67.4
push ebp
push str.TFTP_error:__s_n
push edi
call fcn.0040e110
jmp 0x425079
mov ecx, dword [ebx + 0x13c]
mov edx, dword [ebp]
sub ecx, 2
add edx, 2
push ecx
push edx
push ebx
call fcn.00425110
add esp, 0xc
test eax, eax
je case.0x424f67.4
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x88
ret
push str.Internal_error:_Unexpected_packet
push 0x9f4d28
push edi
call fcn.0040e1d0
add esp, 0xc
mov eax, dword [esp + 0x9c]
push eax
call fcn.0041b860
add esp, 4
test eax, eax
je 0x424f3d
push 5
push ebx
call fcn.004241c0
add esp, 8
mov eax, 0x2a
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x88
ret
Function at 0x440aa0
Capabilities:
Get hostname

Disassembly:
push esi
mov esi, dword [esp + 8]
push edi
mov edi, dword [esp + 0x10]
push edi
push esi
mov byte [esi], 0
call dword [sym.imp.WS2_32.dll_gethostname]
test eax, eax
mov byte [esi + edi - 1], 0
jne 0x440ad2
push 0x2e
push esi
call fcn.009b3370
add esp, 8
test eax, eax
je 0x440ad0
mov byte [eax], 0
xor eax, eax
pop edi
pop esi
ret

Function at 0x440b20
Capabilities:
Create new key via cryptacquirecontext
Encrypt data using des via winapi
Encrypt or decrypt via wincrypt

Disassembly:
sub esp, 0x20
push 0xf0000040
push 1
push 0
lea eax, [esp + 0xc]
push 0
push eax
mov dword [esp + 0x18], 8
call dword [sym.imp.ADVAPI32.dll_CryptAcquireContextA]
test eax, eax
jne 0x440b49
add esp, 0x20
ret
mov eax, dword [esp + 0x2c]
xor ecx, ecx
mov dword [esp + 0xc], ecx
lea edx, [esp + 0x18]
mov dword [esp + 0x10], ecx
push edx
mov dword [esp + 0x18], ecx
push eax
mov dword [esp + 0x20], ecx
mov byte [esp + 0x14], 8
mov dword [esp + 0x24], ecx
mov byte [esp + 0x15], 2
mov dword [esp + 0x18], 0x6601
mov dword [esp + 0x1c], 8
call fcn.00440c20
lea ecx, [esp + 0x20]
push 8
push ecx
call fcn.00446260
mov ecx, dword [esp + 0x10]
add esp, 0x10
lea edx, [esp + 8]
lea eax, [esp + 0xc]
push edx
push 0
push 0
push 0x14
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_CryptImportKey]
test eax, eax
jne 0x440bc8
mov edx, dword [esp]
push eax
push edx
call dword [sym.imp.ADVAPI32.dll_CryptReleaseContext]
xor eax, eax
add esp, 0x20
ret
mov ecx, dword [esp + 0x24]
mov eax, dword [esp + 0x28]
mov edx, dword [ecx]
mov dword [eax], edx
mov ecx, dword [ecx + 4]
mov edx, dword [esp + 4]
mov dword [eax + 4], ecx
lea ecx, [esp + 4]
push edx
mov edx, dword [esp + 0xc]
push ecx
push eax
push 0
push 0
push 0
push edx
call dword [sym.imp.ADVAPI32.dll_CryptEncrypt]
mov eax, dword [esp + 8]
push eax
call dword [sym.imp.ADVAPI32.dll_CryptDestroyKey]
mov ecx, dword [esp]
push 0
push ecx
call dword [sym.imp.ADVAPI32.dll_CryptReleaseContext]
mov eax, 1
add esp, 0x20
ret