#!/usr/bin/env bash
# ==============================================================================
# Mahzen Linux Security Posture & Recon Helper
# Yalnizca yetkili oldugunuz sunucularda guvenlik denetimi amaciyla calistirin.
# ==============================================================================

echo "=== [1] SISTEM VE CEKIRDEK BILGISI ==="
uname -a
cat /etc/os-release | grep -E "PRETTY_NAME|VERSION_ID"

echo -e "\n=== [2] AKTIF OTURUM VE KULLANICILAR ==="
who
w

echo -e "\n=== [3] SUDO VE YETKI KONTROLU ==="
sudo -l 2>/dev/null || echo "[-] Sudo hakki icin parola gerekli veya yetki yok."

echo -e "\n=== [4] SUID / SGID CALISABILIR DOSYALAR ==="
find / -perm -4000 -type f -exec ls -la {} + 2>/dev/null | head -n 25

echo -e "\n=== [5] YAZILABILIR KRITIK DIZINLER ==="
find /etc -writable -type f 2>/dev/null
find /var/www -writable -type f 2>/dev/null

echo -e "\n=== [6] ACIK SOKETLER VE DINLEYEN SERVISLER ==="
ss -tuln

echo -e "\n=== [7] CRON ZAMANLANMIS GOREVLER ==="
crontab -l 2>/dev/null
ls -la /etc/cron* 2>/dev/null