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Checkdoor

Simple sudo backdoor hunter written in Python.

Install / Use

/learn @VainlyStrain/Checkdoor
About this skill

Quality Score

0/100

Supported Platforms

Universal

README

checkdoor

This simple Python script is designed to detect malicious bash aliases and functions overriding the sudo command (to steal the credentials etc). It can also find fake sudo binaries overriding the real one (whose path is before the real path in $PATH).

The tool also checks the permissions and ownership of the file.

[WARNING] This script DOES NOT guarantee the integrity of the real sudo binary; it only detects third binaries and functions hijacking the command flow. Use an IDS for that.

Related Skills

View on GitHub
GitHub Stars5
CategoryDevelopment
Updated7mo ago
Forks5

Languages

Python

Security Score

82/100

Audited on Aug 21, 2025

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