Rockyou Txt [2021] May 2026

wget https://downloads.skullsecurity.org/passwords/rockyou.txt.bz2 bunzip2 rockyou.txt.bz2 ⚠️ Use only on systems you own or have explicit written permission to test. Unauthorized password cracking is illegal in most jurisdictions (CFAA, Computer Misuse Act, etc.). This guide is for authorized penetration testing, CTF challenges, and security research only . 4. Basic Inspection Commands # Count total passwords wc -l rockyou.txt View first 10 lines head -10 rockyou.txt View random sample shuf -n 20 rockyou.txt Check filesize du -h rockyou.txt Find password length distribution awk 'print length' rockyou.txt | sort -n | uniq -c 5. Common Usage with Tools A. Hydra (online brute-force) hydra -l admin -P rockyou.txt ssh://192.168.1.100 B. John the Ripper (offline hash cracking) john --wordlist=rockyou.txt --format=raw-md5 hashes.txt C. Hashcat (GPU-accelerated) hashcat -m 0 -a 0 hash.txt rockyou.txt D. Aircrack-ng (Wi-Fi handshake) aircrack-ng -w rockyou.txt capture-01.cap E. Ncrack (RDP, SSH, etc.) ncrack -U userlist.txt -P rockyou.txt ssh://192.168.1.0/24 6. Optimizing & Customizing rockyou.txt Remove duplicates (already unique, but for other lists) sort -u input.txt > unique.txt Filter by password length (e.g., min 8 chars) awk 'length($0) >= 8' rockyou.txt > rockyou_min8.txt Convert to a rules-based attack (John rules) john --wordlist=rockyou.txt --rules --stdout > mutated.txt Combine with other wordlists cat rockyou.txt otherlist.txt | sort -u > combined.txt Extract only numeric passwords (PINs, etc.) grep -E '^[0-9]+$' rockyou.txt > numbers_only.txt 7. Limitations of rockyou.txt | Limitation | Reason | |------------|--------| | Dated (2009) | Missing modern trends (e.g., Summer2024! , Spotify123 ) | | English-heavy | Less effective against non-English targets | | No complex policies | Won’t crack T%9qL#2!zR easily | | 14M lines | Slow on embedded/old hardware |