Saturday, March 2, 2024

Hackers Leveraging GitHub Platform for Hosting Malware

Researchers have discovered two novel techniques on GitHub: one exploits GitHub Gists, while the other involves sending commands through Git commit messages.

Malware authors will occasionally upload samples to services such as Dropbox, Google Drive, OneDrive, and Discord to host second-stage malware and avoid detection techniques.

Nevertheless, the threat research team at ReversingLabs has recently noticed a rise in the hosting of malware on the open-source development GitHub platform.

Abusing GitHub Gists

Gists is a GitHub feature that allows developers to share code snippets easily. They can be shared publicly or privately.

“Secret gists don’t show up in Discover and are not searchable unless you are logged in and are the author of the secret gist. Secret gists aren’t private. If you send the URL of a secret gist to a friend, they’ll be able to see it”, reads Gists documentation.

They never make an appearance on the author’s GitHub profile page. This enables them to be used as a form of anonymous Pastebin service, which doesn’t trigger warning signs for an attacker.

“In this incident, several PyPI packages presented themselves as libraries for handling network proxying, and contained a Base64 encoded string, allegedly related to telemetry data, but containing a URL, pointing to a secret Gist”, ReversingLabs shared in a report with Cyber Security News.

To hide this string’s true purpose and make it more difficult for security technologies to flag it as suspicious, malware developers employed Base64 encoding. Before being sent over a network, binary data is frequently encoded using Base64 encoding.

Fetching and executing commands from a Base64 encoded URL
Fetching and executing commands from a Base64 encoded URL

The setup.py file contained hidden malicious code. The setup tools commands were extended to implement it.

Sending Commands Through git Commit Messages

Researchers discovered a sample in the easyhttprequest PyPI package that exploits characteristics of version control systems. Once more, the malicious code was built by extending the egg_info setuptools command and concealed it within the setup.py file.

“After installation on the victim’s machine, the malicious code from this package clones a specific git repository from GitHub and checks if the “head” commit of this repository contains a commit message that starts with a specific string”, researchers said.

Fetching and executing commands from a Base64 encoded commit message
Fetching and executing commands from a Base64 encoded commit message

Recommendation

Developers and application security teams must be able to distinguish between harmful and legitimate packages on these platforms, as attackers are getting more proficient in their malware deployment. 

For this reason, software developers should make use of cutting-edge tools that use intricate binary analysis to offer complete software supply chain security.

Website

Latest articles

AI Worm Developed by Researchers Spreads Automatically Between AI Agents

Researchers have developed what they claim to be one of the first generative AI...

20 Million+ Cutout.Pro User Records Leaked On Hacking Forums

CutOut.Pro, an AI-powered photo and video editing platform, has reportedly suffered a data breach,...

CWE Version 4.14 Released: What’s New!

The Common Weakness Enumeration (CWE) project, a cornerstone in the cybersecurity landscape, has unveiled...

RisePro Stealer Attacks Windows Users Steals Sensitive Data

A new wave of cyber threats has emerged as the RisePro information stealer targets...

Golden Corral Restaurant Chain Hacked: 180,000+ Users’ Data Stolen

The Golden Corral Corporation, a popular American restaurant chain, has suffered a significant data...

CISA Warns Of Hackers Exploiting Multiple Flaws In Ivanti VPN

Threat actors target and abuse VPN flaws because VPNs are often used to secure...

BEAST AI Jailbreak Language Models Within 1 Minute With High Accuracy

Malicious hackers sometimes jailbreak language models (LMs) to exploit bugs in the systems so...
Guru baran
Guru baranhttps://gbhackers.com
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Live Account Takeover Attack Simulation

Live Account Take Over Attack

Live Webinar on How do hackers bypass 2FA ,Detecting ATO attacks, A demo of credential stuffing, brute force and session jacking-based ATO attacks, Identifying attacks with behaviour-based analysis and Building custom protection for applications and APIs.

Related Articles