sidguesser

Guesses sids against an Oracle database

Platforms: Linux · Last verified September 6, 2026

Guesses sids/instances against an Oracle database according to a predefined dictionary file. The speed is slow (80-100 guesses per second) but it does the job.

Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.

Getting started

Install on Kali Linux with `sudo apt install sidguesser`. See the official Kali tool page and upstream homepage linked above for full usage and configuration details.

Commonly preinstalled on

Kali Linux

Debian-based distribution built for penetration testing and security auditing