joyce8/EMBER2024-capa huggingface dataset:
Function at 0x420870
Capabilities:
Enumerate pe sections

Disassembly:
push esi
mov esi, ecx
push edi
mov edi, edx
mov ecx, dword [esi + 0x28]
cmp ecx, 0x40
jae 0x420a04
lea eax, [ecx*8]
add dword [esi], eax
push ebx
adc dword [esi + 4], 0
mov byte [ecx + esi + 0x2c], 0x80
mov eax, dword [esi + 0x28]
inc eax
mov dword [esi + 0x28], eax
cmp eax, 0x38
jbe 0x4208ce
cmp eax, 0x40
jae 0x4208b7
mov byte [eax + esi + 0x2c], 0
mov eax, dword [esi + 0x28]
inc eax
mov dword [esi + 0x28], eax
cmp eax, 0x40
jb 0x4208a6
lea ebx, [esi + 0x2c]
mov ecx, esi
mov edx, ebx
call fcn.004205d0
mov dword [esi + 0x28], 0
xor eax, eax
jmp 0x4208d3
lea ebx, [esi + 0x2c]
jae 0x4208e4
mov byte [eax + esi + 0x2c], 0
mov eax, dword [esi + 0x28]
inc eax
mov dword [esi + 0x28], eax
cmp eax, 0x38
jb 0x4208d3
movzx eax, byte [esi + 7]
mov edx, ebx
mov byte [esi + 0x64], al
mov ecx, esi
movzx eax, byte [esi + 6]
mov byte [esi + 0x65], al
movzx eax, byte [esi + 5]
mov byte [esi + 0x66], al
movzx eax, byte [esi + 4]
mov byte [esi + 0x67], al
movzx eax, byte [esi + 3]
mov byte [esi + 0x68], al
movzx eax, byte [esi + 2]
mov byte [esi + 0x69], al
movzx eax, byte [esi + 1]
mov byte [esi + 0x6a], al
movzx eax, byte [esi]
mov byte [esi + 0x6b], al
call fcn.004205d0
movzx eax, byte [esi + 0xb]
mov byte [edi], al
movzx eax, byte [esi + 0xa]
mov byte [edi + 1], al
movzx eax, byte [esi + 9]
mov byte [edi + 2], al
movzx eax, byte [esi + 8]
mov byte [edi + 3], al
movzx eax, byte [esi + 0xf]
mov byte [edi + 4], al
movzx eax, byte [esi + 0xe]
mov byte [edi + 5], al
movzx eax, byte [esi + 0xd]
mov byte [edi + 6], al
movzx eax, byte [esi + 0xc]
mov byte [edi + 7], al
movzx eax, byte [esi + 0x13]
mov byte [edi + 8], al
movzx eax, byte [esi + 0x12]
mov byte [edi + 9], al
movzx eax, byte [esi + 0x11]
mov byte [edi + 0xa], al
movzx eax, byte [esi + 0x10]
mov byte [edi + 0xb], al
movzx eax, byte [esi + 0x17]
mov byte [edi + 0xc], al
movzx eax, byte [esi + 0x16]
mov byte [edi + 0xd], al
movzx eax, byte [esi + 0x15]
mov byte [edi + 0xe], al
movzx eax, byte [esi + 0x14]
mov byte [edi + 0xf], al
movzx eax, byte [esi + 0x1b]
mov byte [edi + 0x10], al
movzx eax, byte [esi + 0x1a]
mov byte [edi + 0x11], al
movzx eax, byte [esi + 0x19]
mov byte [edi + 0x12], al
movzx eax, byte [esi + 0x18]
mov byte [edi + 0x13], al
movzx eax, byte [esi + 0x1f]
mov byte [edi + 0x14], al
movzx eax, byte [esi + 0x1e]
mov byte [edi + 0x15], al
movzx eax, byte [esi + 0x1d]
mov byte [edi + 0x16], al
movzx eax, byte [esi + 0x1c]
mov byte [edi + 0x17], al
movzx eax, byte [esi + 0x23]
mov byte [edi + 0x18], al
movzx eax, byte [esi + 0x22]
mov byte [edi + 0x19], al
movzx eax, byte [esi + 0x21]
mov byte [edi + 0x1a], al
movzx eax, byte [esi + 0x20]
mov byte [edi + 0x1b], al
movzx eax, byte [esi + 0x27]
mov byte [edi + 0x1c], al
movzx eax, byte [esi + 0x26]
mov byte [edi + 0x1d], al
movzx eax, byte [esi + 0x25]
mov byte [edi + 0x1e], al
movzx eax, byte [esi + 0x24]
mov byte [edi + 0x1f], al
pop ebx
pop edi
pop esi
ret
Function at 0x425c26
Capabilities:
Get geographical location

Disassembly:
push ebp
mov ebp, esp
push ecx
push 2
lea eax, [ebp - 4]
push eax
push 0x20000001
push str._x_sys_default_locale
call dword [sym.imp.KERNEL32.dll_GetLocaleInfoEx]
xor ecx, ecx
test eax, eax
jne 0x425c4d
mov eax, ecx
mov dword [ebp - 4], eax
jmp 0x425c50
mov eax, dword [ebp - 4]
push esi
mov esi, dword [ebp + 0xc]
push ecx
push ecx
push esi
push eax
push dword [ebp + 8]
push ecx
push 0x1300
call dword [sym.imp.KERNEL32.dll_FormatMessageA]
push eax
push dword [esi]
call fcn.00425c02
pop esi
leave
ret 8
Function at 0x42fca0
Capabilities:
Encode data using xor
Hash data using djb2

Disassembly:
push esi
mov esi, dword [esp + 8]
test esi, esi
je 0x42fd4f
push esi
call fcn.00445cc0
add esp, 4
test al, al
jne 0x42fd4f
push ebx
push edi
mov edi, esi
xor ebx, ebx
lea ecx, [edi + 1]
mov al, byte [edi]
inc edi
test al, al
jne 0x42fcc7
sub edi, ecx
push edi
push 0x2e
push esi
call fcn.0044ee40
add esp, 0xc
test eax, eax
je 0x42fcfb
sub eax, esi
push eax
push 0x2e
push esi
call fcn.0044ee40
mov ebx, eax
add esp, 0xc
test ebx, ebx
je 0x42fcfd
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 0x42fd2e
nop dword [eax]
mov al, byte [esi]
push eax
call fcn.00443890
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 0x42fd10
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 0x43cbb0
Capabilities:
Write file on windows

Disassembly:
push edi
mov edi, dword [esp + 8]
cmp byte [edi + 0x6bb], 0
je 0x43cc4f
cmp dword [edi + 0x194], 0
je 0x43cc07
push edi
call fcn.0042a990
push 1
push edi
mov byte [esp + 0x14], al
call fcn.0042ae40
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.0042ae40
add esp, 0x28
pop edi
ret
mov ecx, dword [esp + 0xc]
mov eax, ecx
sub eax, 0
je 0x43cc1c
sub eax, 1
je 0x43cc1c
sub eax, 1
jne 0x43cc4f
push dword [edi + 0x140]
lea eax, [ecx*2 + 0x486108]
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 0x4403b0
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 0x4403ca
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 0x4867c4
push esi
call dword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strpbrk]
add esp, 8
test eax, eax
je 0x440413
test ebp, ebp
je 0x440404
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 0x440439
push str.AddDllDirectory
push ebx
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x440439
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 0x4404ef
mov ecx, esi
lea ebx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x440456
sub ecx, ebx
lea eax, [ecx + 1]
add eax, edx
push eax
call dword [section..data]
mov ebx, eax
add esp, 4
test ebx, ebx
je 0x4404e5
push dword [esp + 0x10]
push ebx
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
test eax, eax
je 0x4404e5
mov ecx, ebx
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x440488
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 0x4404a0
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 0x4404b0
test ebp, ebp
je 0x4404dc
push 8
push 0
push ebx
call ebp
push ebx
mov edi, eax
call dword [0x49a004]
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 [0x49a004]
add esp, 4
pop esi
pop ebp
mov eax, edi
pop edi
pop ebx
pop ecx
ret
Function at 0x445e70
Capabilities:
Create udp socket

Disassembly:
push esi
mov esi, dword [esp + 8]
test esi, esi
je 0x445eae
mov eax, dword [esi + 0x7c]
cmp byte [eax + 0x114], 0
jne 0x445e9f
push 0
call fcn.00445e70
add esp, 4
test al, al
mov eax, dword [esi + 0x7c]
setne cl
inc cl
mov byte [eax + 0x114], cl
mov eax, dword [esi + 0x7c]
pop esi
cmp byte [eax + 0x114], 2
sete al
ret
push 0
push 2
push 0x17
call dword [sym.imp.WS2_32.dll_socket]
cmp eax, 0xffffffff
jne 0x445ec3
xor al, al
pop esi
ret
push eax
call dword [sym.imp.WS2_32.dll_closesocket]
mov al, 1
pop esi
ret

Function at 0x446c20
Capabilities:
Resolve function by parsing pe exports

Disassembly:
sub esp, 0x6c
mov eax, dword [0x49a400]
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 + 0x6bb], 0
je 0x446e02
cmp byte [ebp + 0x18], 0
push ebx
lea ebx, [ebp + 0x18]
je 0x446e01
lea eax, [esp + 0x30]
push eax
push ebx
push 2
call fcn.00453d70
add esp, 0xc
test eax, eax
jg 0x446e01
lea eax, [esp + 0x34]
push eax
push ebx
push 0x17
call fcn.00453d70
add esp, 0xc
test eax, eax
jg 0x446e01
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.0043cd30
lea eax, [esp + 0x24]
push 0x400
push eax
call fcn.0042a370
lea eax, [esp + 0x3c]
push 0x400
push eax
call fcn.0042a370
add esp, 0x20
test esi, esi
je 0x446d74
lea edx, [edi + 0x10]
mov ecx, dword [esi + 4]
cmp ecx, 0x17
je 0x446ce8
cmp ecx, 2
jne 0x446d69
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 0x446d17
sub ecx, 0x15
jne 0x446d2f
push 0x2e
lea eax, [esp + 0x4c]
push eax
mov eax, dword [esi + 0x18]
add eax, 8
push eax
push 0x17
jmp 0x446d27
push 0x2e
lea eax, [esp + 0x4c]
push eax
mov eax, dword [esi + 0x18]
add eax, 4
push eax
push 2
call fcn.00470640
add esp, 0x10
push ebx
call fcn.0042a390
add esp, 4
test eax, eax
je 0x446d4e
push 2
push 0x490c24
push ebx
call fcn.0042a330
add esp, 0xc
mov edi, eax
test edi, edi
jne 0x446d94
lea eax, [esp + 0x48]
push eax
push ebx
call fcn.0042a2d0
mov edi, eax
add esp, 8
test edi, edi
jne 0x446d94
lea edx, [eax + 0x10]
mov esi, dword [esi + 0x1c]
test esi, esi
jne 0x446cd7
lea eax, [esp + 0x24]
push eax
call fcn.0042a390
add esp, 4
test eax, eax
je 0x446da4
lea eax, [esp + 0x24]
push eax
call fcn.0042a3a0
add esp, 4
jmp 0x446da9
push str.too_many_IP__cant_show
push ebp
call fcn.0043cd30
add esp, 8
jmp 0x446de9
mov eax, str._none_
push eax
push str.IPv6:__s
push ebp
call fcn.0043cd30
lea eax, [esp + 0x20]
push eax
call fcn.0042a390
add esp, 0x10
test eax, eax
je 0x446dd5
lea eax, [esp + 0x14]
push eax
call fcn.0042a3a0
add esp, 4
jmp 0x446dda
mov eax, str._none_
push eax
push str.IPv4:__s
push ebp
call fcn.0043cd30
add esp, 0xc
lea eax, [esp + 0x14]
push eax
call fcn.0042a340
lea eax, [esp + 0x28]
push eax
call fcn.0042a340
add esp, 8
pop esi
pop ebx
mov ecx, dword [esp + 0x70]
pop edi
pop ebp
xor ecx, esp
call fcn.0047d5a0
add esp, 0x6c
ret
Function at 0x44f5a0
Capabilities:
Move file

Disassembly:
sub esp, 0x20
push ebx
push ebp
push esi
lea eax, [esp + 0xc]
push edi
push eax
call fcn.00430000
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 0x44f635
mov ebx, dword [sym.imp.KERNEL32.dll_Sleep]
nop dword [eax + eax]
lea eax, [esp + 0x20]
push eax
call fcn.00430000
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.004300b0
add esp, 0x20
test edx, edx
ja 0x44f659
jb 0x44f627
cmp eax, 0x3e8
ja 0x44f659
push 1
call ebx
push 1
push esi
push edi
call ebp
test eax, eax
je 0x44f5f0
mov ebx, dword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
test edi, edi
je 0x44f645
push edi
call ebx
add esp, 4
test esi, esi
je 0x44f64f
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 0x44f669
push edi
call ebx
add esp, 4
test esi, esi
je 0x44f673
push esi
call ebx
add esp, 4
pop edi
pop esi
pop ebp
mov eax, 1
pop ebx
add esp, 0x20
ret
Function at 0x44fb60
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 0x44fcef
push esi
mov esi, dword [esp + 0x14]
test esi, esi
je 0x44fcda
push ebx
push ebp
mov eax, dword [esi + 0x14]
test eax, eax
je 0x44fbbc
lea edx, [eax + 1]
nop dword [eax]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x44fbb0
sub eax, edx
inc eax
jmp 0x44fbbe
xor eax, eax
mov ecx, dword [esi + 4]
mov dword [esp + 0x14], eax
cmp ecx, 2
jne 0x44fbcf
lea ebp, [ecx + 0xe]
jmp 0x44fbdb
cmp ecx, 0x17
jne 0x44fc7c
lea ebp, [ecx + 5]
cmp dword [esi + 0x18], 0
je 0x44fc7c
mov ecx, dword [esi + 0x10]
test ecx, ecx
je 0x44fc7c
cmp ecx, ebp
jb 0x44fc7c
add eax, 0x20
add eax, ebp
push eax
call dword [section..data]
mov ebx, eax
add esp, 4
test ebx, ebx
je 0x44fccb
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 0x44fc68
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 0x44fc78
mov dword [eax + 0x1c], ebx
mov dword [esp + 0x18], ebx
mov esi, dword [esi + 0x1c]
test esi, esi
jne 0x44fba2
mov esi, dword [esp + 0x10]
mov eax, dword [esp + 0x1c]
pop ebp
pop ebx
test eax, eax
je 0x44fc9c
push eax
call dword [sym.imp.WS2_32.dll_freeaddrinfo]
test esi, esi
je 0x44fcd6
test edi, edi
je 0x44fcbb
mov esi, dword [edi + 0x1c]
push edi
call dword [0x49a004]
add esp, 4
mov edi, esi
test esi, esi
jne 0x44fca4
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 0x44fc8b
test edi, edi
jne 0x44fce6
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 0x4500f0
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 0x450117
cmp ecx, 0xffffffff
cmovne eax, ecx
ret
Function at 0x450850
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 0x4508fb
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.004365f0
add esp, 0xc
cmp eax, 4
jne 0x4508b6
cmp byte [0x49ad0c], 0
jne 0x4508c2
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 0x4508fd
mov eax, dword [esp + 0x1c]
jmp 0x4508df
imul eax, dword [0x49ad08], 0x41c64e6d
add eax, 0x3039
mov dword [0x49ad08], eax
rol eax, 0x10
xor ecx, ecx
mov dword [esp + 0x1c], eax
test ebx, ebx
je 0x4508f3
mov byte [esi], al
dec edi
inc esi
shr eax, 8
sub ebx, 1
jne 0x4508e3
mov dword [esp + 0x1c], eax
test edi, edi
jne 0x450870
mov eax, ecx
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x450910
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 0x450988
mov esi, dword [esp + 0x14]
mov ebp, 0x3e
nop word [eax + eax]
push 4
lea eax, [esp + 0x20]
push eax
push esi
call fcn.004365f0
add esp, 0xc
cmp eax, 4
jne 0x450969
cmp byte [0x49ad0c], 0
jne 0x450992
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 0x4509af
test eax, eax
jne 0x45098d
mov eax, dword [esp + 0x1c]
cmp eax, 0xfffffffc
jae 0x450930
xor edx, edx
div ebp
mov al, byte [edx + str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789]
mov byte [edi], al
inc edi
sub ebx, 1
jne 0x450930
mov byte [edi], 0
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret
imul eax, dword [0x49ad08], 0x41c64e6d
add eax, 0x3039
mov dword [0x49ad08], eax
rol eax, 0x10
mov dword [esp + 0x1c], eax
jmp 0x450971
pop edi
pop esi
pop ebp
mov eax, 2
pop ebx
ret

Function at 0x4509c0
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 0x453940
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 [0x49a008]
mov edi, eax
add esp, 8
test edi, edi
je 0x453997
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 0x4539af
cmp esi, ebx
je 0x4539af
cmp esi, 0x8000
ja 0x4539af
cmp esi, ebx
jb 0x4539a8
push esi
push edi
call dword [0x49a008]
mov edi, eax
add esp, 8
test edi, edi
jne 0x453960
push ebp
call dword [0x49a004]
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 [0x49a004]
add esp, 4
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x4551a0
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 0x4551ec
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push str.Sending_data_failed___d_
push esi
call fcn.0043cc60
add esp, 0xc
push dword [esp + 0x14]
push ebx
push str.SENT
push esi
call fcn.00454dc0
add esp, 0x10
pop esi
pop ebx
ret
Function at 0x455350
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 + 0x124]
mov dword [esp + 8], eax
jne 0x4554a3
push esi
lea ecx, [ebp + 0x1cc4]
push edi
lea edi, [ebp + 0x1ec4]
mov eax, ecx
mov dword [edi], ecx
cmp ecx, edi
jae 0x45538d
lea eax, [ecx + 1]
mov byte [ecx], 0xff
mov dword [edi], eax
cmp eax, edi
jae 0x4553a1
mov byte [eax], 0xfa
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x4553a1
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 0x45540b
mov byte [eax], dl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45540b
mov byte [eax], dh
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45540b
mov byte [eax], cl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45540b
shr ecx, 8
mov byte [eax], cl
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45540b
mov byte [eax], 0xff
inc dword [edi]
mov eax, dword [edi]
cmp eax, edi
jae 0x45540b
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.00454ec0
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 0x455463
call esi
push eax
push str.Sending_data_failed___d_
push ebx
call fcn.0043cc60
add esp, 0xc
push 4
lea eax, [ebp + 0x1cc7]
push eax
push ebx
call fcn.00455210
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 0x4554a1
call esi
push eax
push str.Sending_data_failed___d_
push ebx
call fcn.0043cc60
add esp, 0xc
pop edi
pop esi
pop ebp
pop ebx
pop ecx
ret
Function at 0x4568a0
Capabilities:
Receive data
Receive data on socket

Disassembly:
sub esp, 0x8c
mov eax, dword [0x49a400]
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 + 0x3f0]
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 0x456926
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 0x456961
push str.Received_too_short_packet
push ebp
call fcn.0043cc60
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.0047d5a0
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.0x456980.1
jmp dword [ecx*4 + 0x456a6c]
cmp esi, 4
jle case.0x456980.4
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.0x456980.4
lea eax, [esi - 4]
push eax
lea eax, [edx + 4]
push eax
push 1
push ebp
call fcn.0043dbc0
mov ebx, eax
add esp, 0x10
test ebx, ebx
je case.0x456980.4
push 5
push edi
call fcn.00457380
add esp, 8
jmp 0x456946
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.004573f0
add esp, 8
cmp eax, esi
jae case.0x456980.4
push dword [esp + 0x14]
push str.TFTP_error:__s
push ebp
call fcn.0043cd30
jmp 0x456a41
lea eax, [esi - 2]
push eax
lea eax, [edx + 2]
push eax
push edi
call fcn.00456650
mov ebx, eax
add esp, 0xc
test ebx, ebx
je case.0x456980.4
jmp 0x456946
push str.Internal_error:_Unexpected_packet
push 0x483d04
push ebp
call fcn.0043cc60
add esp, 0xc
push ebp
call fcn.0044d660
add esp, 4
test eax, eax
je 0x456946
push 5
push edi
call fcn.00457380
add esp, 8
mov eax, 0x2a
jmp 0x456948