joyce8/EMBER2024-capa huggingface dataset:
Function at 0x418b60
Capabilities:
Query or enumerate registry value

Disassembly:
push ebp
mov ebp, esp
mov eax, 0x1010
call fcn.004852b0
mov eax, dword [0x4a1014]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
mov ebx, dword [ebp + 0x10]
lea eax, [ebp - 0x1010]
push esi
push edi
mov edi, dword [ebp + 0xc]
xor esi, esi
push eax
push 0x20019
push esi
push str.SOFTWARETencentQQ
push reloc.WS2_32.dll_bind
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x418c49
push 0x1000
push eax
lea eax, [ebp - 0x1004]
mov dword [ebp - 0x1008], 3
push eax
call sub.VCRUNTIME140.dll_memset
add esp, 0xc
mov dword [ebp - 0x100c], 0x400
lea eax, [ebp - 0x100c]
push eax
lea eax, [ebp - 0x1004]
push eax
lea eax, [ebp - 0x1008]
push eax
push esi
push str.path
push dword [ebp - 0x1010]
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
test eax, eax
jne 0x418c49
mov eax, dword [ebp - 0x100c]
push eax
mov dword [ebx], eax
call dword [sym.imp.mfc140u.dll_operator]
push dword [ebp - 0x100c]
mov esi, eax
push 0
push esi
call sub.VCRUNTIME140.dll_memset
push dword [ebp - 0x100c]
lea eax, [ebp - 0x1004]
push eax
push esi
call sub.VCRUNTIME140.dll_memcpy
push dword [ebp - 0x100c]
push esi
push edi
call sub.VCRUNTIME140.dll_memcpy
push esi
call dword [sym.imp.mfc140u.dll_operator_1]
add esp, 0x2c
mov esi, 1
push dword [ebp - 0x1010]
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov ecx, dword [ebp - 4]
mov eax, esi
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.0042996d
mov esp, ebp
pop ebp
ret

Function at 0x418c70
Capabilities:
Delete file

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x230
mov eax, dword [0x4a1014]
xor eax, ebp
mov dword [ebp - 4], eax
push esi
mov esi, ecx
push edi
mov edi, esi
lea ecx, [edi + 2]
nop dword [eax]
mov ax, word [edi]
add edi, 2
test ax, ax
jne 0x418c90
sub edi, ecx
sar edi, 1
test esi, esi
jne 0x418cb5
pop edi
xor eax, eax
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.0042996d
mov esp, ebp
pop ebp
ret
cmp edi, 0x104
jge 0x418ca3
push 0x20a
lea eax, [ebp - 0x210]
push 0
push eax
call sub.VCRUNTIME140.dll_memset
lea ecx, [ebp - 0x210]
add esp, 0xc
sub ecx, esi
nop dword [eax + eax]
movzx eax, word [esi]
lea esi, [esi + 2]
mov word [ecx + esi - 2], ax
test ax, ax
jne 0x418ce0
add edi, edi
cmp edi, 0x20a
jae 0x418db5
xor eax, eax
mov word [ebp + edi - 0x210], ax
add edi, 2
cmp edi, 0x20a
jae 0x418db5
mov dword [ebp - 0x218], eax
xorps xmm0, xmm0
mov word [ebp + edi - 0x210], ax
mov ecx, 0x414
movq qword [ebp - 0x220], xmm0
mov ax, word [ebp - 0x220]
or ax, cx
mov dword [ebp - 0x21a], 0
movups xmmword [ebp - 0x230], xmm0
lea ecx, [ebp - 0x210]
mov dword [ebp - 0x230], 0
mov dword [ebp - 0x228], ecx
mov ecx, 0xffbf
and ax, cx
mov dword [ebp - 0x216], 0
mov word [ebp - 0x220], ax
lea eax, [ebp - 0x230]
push eax
mov dword [ebp - 0x22c], 3
mov dword [ebp - 0x224], 0
call dword [sym.imp.SHELL32.dll_SHFileOperationW]
mov ecx, dword [ebp - 4]
neg eax
pop edi
sbb eax, eax
xor ecx, ebp
inc eax
pop esi
call fcn.0042996d
mov esp, ebp
pop ebp
ret
call fcn.00429d0c
int3
Function at 0x41fdf0
Capabilities:
Encode data using xor
Hash data using fnv

Disassembly:
push ebp
mov ebp, esp
push esi
mov esi, dword [ebp + 0xc]
mov edx, 0x811c9dc5
push edi
mov edi, dword [ebp + 8]
mov ecx, 0
sub esi, edi
je 0x41fe21
nop dword [eax]
movzx eax, byte [ecx + edi]
inc ecx
xor eax, edx
imul edx, eax, 0x1000193
cmp ecx, esi
jb 0x41fe10
pop edi
mov eax, edx
pop esi
pop ebp
ret 8
Function at 0x428370
Capabilities:
Create thread

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x487bc8
mov eax, dword fs:[0]
push eax
sub esp, 0x18
mov eax, dword [0x4a1014]
xor eax, ebp
mov dword [ebp - 0x14], eax
push esi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov esi, ecx
mov edx, dword [esi]
test edx, edx
setne al
test al, al
je 0x4283fc
cmp byte [edx + 0x15], 0
jne 0x4283fc
xorps xmm0, xmm0
push ecx
lea ecx, [ebp - 0x1c]
movq qword [ebp - 0x1c], xmm0
call fcn.00427de0
push esi
mov dword [ebp - 4], 0
call fcn.00428c60
mov eax, dword [0x4a3a3c]
mov esi, dword [eax + 4]
lea eax, [ebp - 0x20]
push eax
push 0
add esi, 8
push esi
push 0x427f60
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateThread]
mov ecx, dword [esi]
mov dword [ecx + 8], eax
lea ecx, [ebp - 0x1c]
call fcn.00427e80
mov eax, esi
jmp 0x4283fe
xor eax, eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop esi
mov ecx, dword [ebp - 0x14]
xor ecx, ebp
call fcn.0042996d
mov esp, ebp
pop ebp
ret 4
Function at 0x434770
Capabilities:
Encode data using xor
Hash data using djb2

Disassembly:
push esi
mov esi, dword [esp + 8]
test esi, esi
je 0x43481f
push esi
call fcn.00448650
add esp, 4
test al, al
jne 0x43481f
push ebx
push edi
mov edi, esi
xor ebx, ebx
lea ecx, [edi + 1]
mov al, byte [edi]
inc edi
test al, al
jne 0x434797
sub edi, ecx
push edi
push 0x2e
push esi
call fcn.004579d0
add esp, 0xc
test eax, eax
je 0x4347cb
sub eax, esi
push eax
push 0x2e
push esi
call fcn.004579d0
mov ebx, eax
add esp, 0xc
test ebx, ebx
je 0x4347cd
inc ebx
mov ecx, esi
sub ecx, ebx
add edi, ecx
test ebx, ebx
cmovne esi, ebx
lea ebx, [esi + edi]
mov edi, 0x1505
cmp esi, ebx
jae 0x4347fe
nop dword [eax]
mov al, byte [esi]
push eax
call fcn.00449790
movsx ecx, al
inc esi
mov eax, edi
add esp, 4
shl eax, 5
add eax, edi
xor ecx, eax
mov edi, ecx
cmp esi, ebx
jb 0x4347e0
mov eax, 0x4104105
mov esi, edi
mul edi
sub esi, edx
shr esi, 1
add esi, edx
shr esi, 5
mov ecx, esi
shl ecx, 6
sub ecx, esi
sub edi, ecx
mov eax, edi
pop edi
pop ebx
pop esi
ret
xor eax, eax
pop esi
ret
Function at 0x442710
Capabilities:
Write file on windows

Disassembly:
push edi
mov edi, dword [esp + 8]
cmp byte [edi + 0x696], 0
je 0x4427af
cmp dword [edi + 0x194], 0
je 0x442767
push edi
call fcn.0042f400
push 1
push edi
mov byte [esp + 0x14], al
call fcn.0042fc20
push dword [edi + 0x144]
mov eax, dword [edi + 0x194]
push dword [esp + 0x24]
push dword [esp + 0x24]
push dword [esp + 0x24]
push edi
call eax
push dword [esp + 0x28]
push edi
call fcn.0042fc20
add esp, 0x28
pop edi
ret
mov ecx, dword [esp + 0xc]
mov eax, ecx
sub eax, 0
je 0x44277c
sub eax, 1
je 0x44277c
sub eax, 1
jne 0x4427af
push dword [edi + 0x140]
lea eax, [ecx*2 + 0x48d67c]
push 1
add eax, ecx
push 2
push eax
call dword [sym.imp.api_ms_win_crt_stdio_l1_1_0.dll_fwrite]
push dword [edi + 0x140]
push 1
push dword [esp + 0x2c]
push dword [esp + 0x2c]
call dword [sym.imp.api_ms_win_crt_stdio_l1_1_0.dll_fwrite]
add esp, 0x20
pop edi
ret

Function at 0x445f30
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 0x445f4a
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 0x48e044
push esi
call dword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strpbrk]
add esp, 8
test eax, eax
je 0x445f93
test ebp, ebp
je 0x445f84
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 0x445fb9
push str.AddDllDirectory
push ebx
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x445fb9
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 0x44606f
mov ecx, esi
lea ebx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x445fd6
sub ecx, ebx
lea eax, [ecx + 1]
add eax, edx
push eax
call dword [0x4a1020]
mov ebx, eax
add esp, 4
test ebx, ebx
je 0x446065
push dword [esp + 0x10]
push ebx
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
test eax, eax
je 0x446065
mov ecx, ebx
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x446008
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 0x446020
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 0x446030
test ebp, ebp
je 0x44605c
push 8
push 0
push ebx
call ebp
push ebx
mov edi, eax
call dword [0x4a1024]
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 [0x4a1024]
add esp, 4
pop esi
pop ebp
mov eax, edi
pop edi
pop ebx
pop ecx
ret
Function at 0x4487f0
Capabilities:
Create udp socket

Disassembly:
push esi
mov esi, dword [esp + 8]
test esi, esi
je 0x44882e
mov eax, dword [esi + 0x7c]
cmp byte [eax + 0x144], 0
jne 0x44881f
push 0
call fcn.004487f0
add esp, 4
test al, al
mov eax, dword [esi + 0x7c]
setne cl
inc cl
mov byte [eax + 0x144], cl
mov eax, dword [esi + 0x7c]
pop esi
cmp byte [eax + 0x144], 2
sete al
ret
push 0
push 2
push 0x17
call dword [sym.imp.WS2_32.dll_socket]
cmp eax, 0xffffffff
jne 0x448843
xor al, al
pop esi
ret
push eax
call dword [sym.imp.WS2_32.dll_closesocket]
mov al, 1
pop esi
ret

Function at 0x449580
Capabilities:
Resolve function by parsing pe exports

Disassembly:
sub esp, 0x6c
mov eax, dword [0x4a1014]
xor eax, esp
mov dword [esp + 0x68], eax
mov eax, dword [esp + 0x70]
push ebp
mov ebp, dword [esp + 0x78]
push edi
xor edi, edi
mov dword [esp + 8], eax
cmp byte [eax + 0x696], 0
je 0x449762
cmp byte [ebp + 0x18], 0
push ebx
lea ebx, [ebp + 0x18]
je 0x449761
lea eax, [esp + 0x30]
push eax
push ebx
push 2
call fcn.0045e6d0
add esp, 0xc
test eax, eax
jg 0x449761
lea eax, [esp + 0x34]
push eax
push ebx
push 0x17
call fcn.0045e6d0
add esp, 0xc
test eax, eax
jg 0x449761
cmp byte [ebx], 0
mov eax, str._none_
push esi
push dword [ebp + 0x14]
mov esi, dword [ebp]
cmovne eax, ebx
mov ebp, dword [esp + 0x14]
push eax
push str.Host__s:_d_was_resolved.
push ebp
call fcn.00442890
lea eax, [esp + 0x24]
push 0x400
push eax
call fcn.00434db0
lea eax, [esp + 0x3c]
push 0x400
push eax
call fcn.00434db0
add esp, 0x20
test esi, esi
je 0x4496d4
lea edx, [edi + 0x10]
mov ecx, dword [esi + 4]
cmp ecx, 0x17
je 0x449648
cmp ecx, 2
jne 0x4496c9
xor eax, eax
mov byte [esp + 0x48], 0
cmp ecx, 2
lea ebx, [esp + 0x14]
cmovne eax, edx
add ebx, eax
sub ecx, 2
je 0x449677
sub ecx, 0x15
jne 0x44968f
push 0x2e
lea eax, [esp + 0x4c]
push eax
mov eax, dword [esi + 0x18]
add eax, 8
push eax
push 0x17
jmp 0x449687
push 0x2e
lea eax, [esp + 0x4c]
push eax
mov eax, dword [esi + 0x18]
add eax, 4
push eax
push 2
call fcn.00478140
add esp, 0x10
push ebx
call fcn.0047d320
add esp, 4
test eax, eax
je 0x4496ae
push 2
push 0x48d6bc
push ebx
call fcn.00434d70
add esp, 0xc
mov edi, eax
test edi, edi
jne 0x4496f4
lea eax, [esp + 0x48]
push eax
push ebx
call fcn.00434d10
mov edi, eax
add esp, 8
test edi, edi
jne 0x4496f4
lea edx, [eax + 0x10]
mov esi, dword [esi + 0x1c]
test esi, esi
jne 0x449637
lea eax, [esp + 0x24]
push eax
call fcn.0047d320
add esp, 4
test eax, eax
je 0x449704
lea eax, [esp + 0x24]
push eax
call fcn.00434dd0
add esp, 4
jmp 0x449709
push str.too_many_IP__cannot_show
push ebp
call fcn.00442890
add esp, 8
jmp 0x449749
mov eax, str._none_
push eax
push str.IPv6:__s
push ebp
call fcn.00442890
lea eax, [esp + 0x20]
push eax
call fcn.0047d320
add esp, 0x10
test eax, eax
je 0x449735
lea eax, [esp + 0x14]
push eax
call fcn.00434dd0
add esp, 4
jmp 0x44973a
mov eax, str._none_
push eax
push str.IPv4:__s
push ebp
call fcn.00442890
add esp, 0xc
lea eax, [esp + 0x14]
push eax
call fcn.00434d80
lea eax, [esp + 0x28]
push eax
call fcn.00434d80
add esp, 8
pop esi
pop ebx
mov ecx, dword [esp + 0x70]
pop edi
pop ebp
xor ecx, esp
call fcn.0042996d
add esp, 0x6c
ret
Function at 0x44b910
Capabilities:
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x188
mov eax, dword [0x4a1014]
xor eax, esp
mov dword [esp + 0x184], eax
mov eax, dword [esp + 0x18c]
push ebx
mov ebx, dword [esp + 0x194]
push esi
mov esi, dword [eax + 8]
push edi
mov edi, dword [esi + 0x98]
cmp edi, 0xffffffff
je 0x44ba48
mov eax, dword [ebx + 0x18]
mov eax, dword [eax + 0x2ac]
test dword [eax + 0x48], 0x800
jne 0x44ba48
push 0x80
lea eax, [esp + 0x14]
mov dword [esp + 0x10], 0x80
push 0
push eax
call sub.VCRUNTIME140.dll_memset
add esp, 0xc
lea eax, [esp + 0xc]
push eax
lea eax, [esp + 0x14]
push eax
push edi
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x44b9d6
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov esi, eax
lea eax, [esp + 0x90]
push 0x100
push eax
push esi
call fcn.0042e560
push eax
push esi
push str.getsockname___failed_with_errno__d:__s
push ebx
call fcn.004427c0
add esp, 0x1c
mov eax, 2
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x184]
xor ecx, esp
call fcn.0042996d
add esp, 0x188
ret
lea eax, [esi + 0xfc]
push eax
lea eax, [esi + 0xca]
push eax
push dword [esp + 0x14]
lea eax, [esp + 0x1c]
push eax
call fcn.00444b90
add esp, 0x10
test al, al
jne 0x44ba48
mov esi, dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__errno]
call esi
mov edi, dword [eax]
call esi
mov esi, eax
lea eax, [esp + 0x90]
push 0x100
push eax
push edi
call fcn.0042e560
push eax
push dword [esi]
push str.ssloc_inet_ntop___failed_with_errno__d:__s
push ebx
call fcn.004427c0
add esp, 0x1c
mov eax, 2
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x184]
xor ecx, esp
call fcn.0042996d
add esp, 0x188
ret
mov ecx, dword [esp + 0x190]
xor eax, eax
pop edi
pop esi
pop ebx
xor ecx, esp
call fcn.0042996d
add esp, 0x188
ret
Function at 0x458130
Capabilities:
Move file

Disassembly:
sub esp, 0x20
push ebx
push ebp
push esi
lea eax, [esp + 0xc]
push edi
push eax
call fcn.00434ad0
push dword [esp + 0x38]
mov esi, dword [sym.imp.api_ms_win_crt_string_l1_1_0.dll__strdup]
movups xmm0, xmmword [eax]
movups xmmword [esp + 0x18], xmm0
call esi
push dword [esp + 0x40]
mov edi, eax
call esi
mov ebp, dword [sym.imp.KERNEL32.dll_MoveFileExA]
add esp, 0xc
mov esi, eax
push 1
push esi
push edi
call ebp
test eax, eax
jne 0x4581c5
mov ebx, dword [sym.imp.KERNEL32.dll_Sleep]
nop dword [eax + eax]
lea eax, [esp + 0x20]
push eax
call fcn.00434ad0
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.00434b80
add esp, 0x20
test edx, edx
ja 0x4581e9
jb 0x4581b7
cmp eax, 0x3e8
ja 0x4581e9
push 1
call ebx
push 1
push esi
push edi
call ebp
test eax, eax
je 0x458180
mov ebx, dword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
test edi, edi
je 0x4581d5
push edi
call ebx
add esp, 4
test esi, esi
je 0x4581df
push esi
call ebx
add esp, 4
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x20
ret
mov ebx, dword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
test edi, edi
je 0x4581f9
push edi
call ebx
add esp, 4
test esi, esi
je 0x458203
push esi
call ebx
add esp, 4
pop edi
pop esi
pop ebp
mov eax, 1
pop ebx
add esp, 0x20
ret
Function at 0x458ca0
Capabilities:
Create thread

Disassembly:
push 0
push 0
push dword [esp + 0x10]
push dword [esp + 0x10]
push 0
push 0
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__beginthreadex]
mov ecx, eax
add esp, 0x18
xor eax, eax
test ecx, ecx
je 0x458cc7
cmp ecx, 0xffffffff
cmovne eax, ecx
ret

Function at 0x45a730
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 0x45a7db
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.0043bc10
add esp, 0xc
cmp eax, 4
jne 0x45a796
cmp byte [0x4a29e8], 0
jne 0x45a7a2
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 0x45a7dd
mov eax, dword [esp + 0x1c]
jmp 0x45a7bf
imul eax, dword [0x4a29e4], 0x41c64e6d
add eax, 0x3039
mov dword [0x4a29e4], eax
rol eax, 0x10
xor ecx, ecx
mov dword [esp + 0x1c], eax
test ebx, ebx
je 0x45a7d3
mov byte [esi], al
dec edi
inc esi
shr eax, 8
sub ebx, 1
jne 0x45a7c3
mov dword [esp + 0x1c], eax
test edi, edi
jne 0x45a750
mov eax, ecx
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x45a7f0
Capabilities:
Generate random numbers via winapi

Disassembly:
push ebx
mov ebx, dword [esp + 0x10]
push ebp
push esi
push edi
mov edi, dword [esp + 0x18]
sub ebx, 1
je 0x45a868
mov esi, dword [esp + 0x14]
mov ebp, 0x3e
nop word [eax + eax]
push 4
lea eax, [esp + 0x20]
push eax
push esi
call fcn.0043bc10
add esp, 0xc
cmp eax, 4
jne 0x45a849
cmp byte [0x4a29e8], 0
jne 0x45a872
push 2
push eax
lea eax, [esp + 0x24]
mov dword [esp + 0x24], 0
push eax
push 0
call sub.bcrypt.dll_BCryptGenRandom
test eax, eax
jne 0x45a88f
test eax, eax
jne 0x45a86d
mov eax, dword [esp + 0x1c]
cmp eax, 0xfffffffc
jae 0x45a810
xor edx, edx
div ebp
mov al, byte [edx + str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789]
mov byte [edi], al
inc edi
sub ebx, 1
jne 0x45a810
mov byte [edi], 0
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret
imul eax, dword [0x4a29e4], 0x41c64e6d
add eax, 0x3039
mov dword [0x4a29e4], eax
rol eax, 0x10
mov dword [esp + 0x1c], eax
jmp 0x45a851
pop edi
pop esi
pop ebp
mov eax, 2
pop ebx
ret

Function at 0x45a8a0
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 0x45e2a0
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 [0x4a1028]
mov edi, eax
add esp, 8
test edi, edi
je 0x45e2f7
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 0x45e30f
cmp esi, ebx
je 0x45e30f
cmp esi, 0x8000
ja 0x45e30f
cmp esi, ebx
jb 0x45e308
push esi
push edi
call dword [0x4a1028]
mov edi, eax
add esp, 8
test edi, edi
jne 0x45e2c0
push ebp
call dword [0x4a1024]
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 [0x4a1024]
add esp, 4
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x45faf0
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 + 0x18]
push ecx
mov byte [esp + 0x18], 0xff
mov byte [esp + 0x19], bl
push dword [eax + 0x1a0]
call dword [sym.imp.WS2_32.dll_send]
test eax, eax
jns 0x45fb3c
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push str.Sending_data_failed___d_
push esi
call fcn.004427c0
add esp, 0xc
push dword [esp + 0x14]
push ebx
push str.SENT
push esi
call fcn.0045f710
add esp, 0x10
pop esi
pop ebx
ret
Function at 0x45fca0
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 + 0x18]
mov ebp, dword [ebx + 0x120]
mov dword [esp + 8], eax
jne 0x45fdf3
push esi
lea ecx, [ebp + 0x1cc4]
push edi
lea edi, [ebp + 0x1ec4]
mov eax, ecx
mov dword [edi], ecx
cmp ecx, edi
jae 0x45fcdd
lea eax, [ecx + 1]
mov byte [ecx], 0xff
mov dword [edi], eax
cmp eax, edi
jae 0x45fcf1
mov byte [eax], 0xfa
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45fcf1
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 0x45fd5b
mov byte [eax], dl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45fd5b
mov byte [eax], dh
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45fd5b
mov byte [eax], cl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45fd5b
shr ecx, 8
mov byte [eax], cl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45fd5b
mov byte [eax], 0xff
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45fd5b
mov byte [eax], 0xf0
mov eax, dword [edi]
inc eax
mov dword [ebp + 0x1ec8], eax
lea esi, [ebp + 0x1cc4]
sub eax, esi
mov dword [edi], esi
sub eax, 2
push eax
lea eax, [ebp + 0x1cc6]
push eax
push 0x3e
push ebx
call fcn.0045f810
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 + 0x1a0]
call edi
mov esi, dword [sym.imp.WS2_32.dll_WSAGetLastError]
test eax, eax
jns 0x45fdb3
call esi
push eax
push str.Sending_data_failed___d_
push ebx
call fcn.004427c0
add esp, 0xc
push 4
lea eax, [ebp + 0x1cc7]
push eax
push ebx
call fcn.0045fb60
add esp, 0xc
lea eax, [ebp + 0x1ccb]
push 0
push 2
push eax
mov eax, dword [esp + 0x1c]
push dword [eax + 0x1a0]
call edi
test eax, eax
jns 0x45fdf1
call esi
push eax
push str.Sending_data_failed___d_
push ebx
call fcn.004427c0
add esp, 0xc
pop edi
pop esi
pop ebp
pop ebx
pop ecx
ret
Function at 0x4611d0
Capabilities:
Receive data
Receive data on socket

Disassembly:
sub esp, 0x8c
mov eax, dword [0x4a1014]
xor eax, esp
mov dword [esp + 0x88], eax
push ebx
push ebp
mov ebp, dword [esp + 0x98]
xor ebx, ebx
push esi
push edi
mov eax, dword [ebp + 0x18]
mov edi, dword [eax + 0x430]
lea eax, [esp + 0x10]
push eax
mov dword [esp + 0x14], 0x80
lea eax, [esp + 0x1c]
push eax
mov eax, dword [edi + 0x13c]
push ebx
add eax, 4
push eax
push dword [edi + 0x148]
push dword [edi + 0x14]
call dword [sym.imp.WS2_32.dll_recvfrom]
mov dword [edi + 0x134], eax
cmp dword [edi + 0x130], ebx
jne 0x461256
push dword [esp + 0x10]
lea eax, [esp + 0x1c]
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 0x461291
push str.Received_too_short_packet
push ebp
call fcn.004427c0
add esp, 8
mov dword [edi + 0xc], 7
mov eax, ebx
mov ecx, dword [esp + 0x98]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.0042996d
add esp, 0x8c
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.0x4612b0.1
jmp dword [ecx*4 + 0x46139c]
cmp esi, 4
jle case.0x4612b0.4
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.0x4612b0.4
lea eax, [esi - 4]
push eax
lea eax, [edx + 4]
push eax
push 1
push ebp
call fcn.00443a00
mov ebx, eax
add esp, 0x10
test ebx, ebx
je case.0x4612b0.4
push 5
push edi
call fcn.00461cb0
add esp, 8
jmp 0x461276
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.00461d20
add esp, 8
cmp eax, esi
jae case.0x4612b0.4
push dword [esp + 0x14]
push str.TFTP_error:__s
push ebp
call fcn.00442890
jmp 0x461371
lea eax, [esi - 2]
push eax
lea eax, [edx + 2]
push eax
push edi
call fcn.00460f80
mov ebx, eax
add esp, 0xc
test ebx, ebx
je case.0x4612b0.4
jmp 0x461276
push str.Internal_error:_Unexpected_packet
push 0x48b0b0
push ebp
call fcn.004427c0
add esp, 0xc
push ebp
call fcn.00455f60
add esp, 4
test eax, eax
je 0x461276
push 5
push edi
call fcn.00461cb0
add esp, 8
mov eax, 0x2a
jmp 0x461278