2025-02-12
Chrome extensions often operate as black boxes, making it difficult to attribute network activity. Traditional monitoring tools only show traffic originating from the Chrome process, leaving security teams in the dark about which extension is behind a suspicious DNS query. ExtensionHound addresses this challenge by analyzing Chrome’s internal network state and correlating DNS activity with specific extensions. It’s a purpose-built solution for investigating potentially malicious or unexpected extension behavior.
Key Features:
- Visibility into DNS requests linked to individual Chrome extensions.
- Optional VirusTotal integration for domain reputation analysis.
- Flexible output formats to fit into your workflows.
- Cross-platform support for Windows, macOS, and Linux.
Installation and Usage:
1. Clone the Repository:
git clone https://github.com/amramenglander/ExtensionHound.git cd ExtensionHound
2. Install Dependencies:
pip install -r requirements.txt
3. Run ExtensionHound:
python extensionhound.py --profile /path/to/chrome/profile
4. Integrate with VirusTotal:
python extensionhound.py --profile /path/to/chrome/profile --virustotal-api-key YOUR_API_KEY
5. Export Results:
python extensionhound.py --profile /path/to/chrome/profile --output json --output-file results.json
Example Commands:
- Basic Usage:
python extensionhound.py --profile ~/.config/google-chrome/Default
VirusTotal Integration:
python extensionhound.py --profile ~/.config/google-chrome/Default --virustotal-api-key YOUR_API_KEY
Export to CSV:
python extensionhound.py --profile ~/.config/google-chrome/Default --output csv --output-file results.csv
What Undercode Say:
ExtensionHound is a powerful tool for incident responders and security teams looking to gain better visibility into Chrome extension behavior. By correlating DNS requests with specific extensions, it provides a clearer picture of potential threats and malicious activities. The tool’s integration with VirusTotal adds an extra layer of security by allowing users to analyze domain reputations directly within the tool.
For those working in cybersecurity, understanding the network activity of browser extensions is crucial. ExtensionHound simplifies this process, making it easier to identify and mitigate risks. The tool’s cross-platform support ensures that it can be used in various environments, from Windows to macOS and Linux.
In addition to its core features, ExtensionHound’s flexible output formats make it easy to integrate into existing workflows. Whether you prefer JSON, CSV, or plain text, the tool can adapt to your needs.
For further exploration, you can visit the GitHub repository: ExtensionHound on GitHub.
Additional Linux Commands for Cybersecurity:
- Monitor Network Traffic:
sudo tcpdump -i eth0 -w capture.pcap
Analyze DNS Queries:
sudo tshark -i eth0 -f "udp port 53" -Y "dns"
Check for Open Ports:
sudo nmap -sS -p 1-65535 target_ip
Inspect Running Processes:
ps aux | grep chrome
View System Logs:
sudo tail -f /var/log/syslog
Scan for Malware:
sudo clamscan -r /home/user
Check File Integrity:
sha256sum file_to_check
Monitor System Performance:
htop
Analyze Suspicious Files:
strings suspicious_file
Check for Rootkits:
sudo rkhunter --check
ExtensionHound is a valuable addition to any cybersecurity toolkit, providing the necessary insights to keep your systems secure. By leveraging its capabilities, you can ensure that your browser extensions are not a hidden threat to your organization’s security.
For more information and to contribute to the project, visit the GitHub repository: ExtensionHound on GitHub.
References:
Hackers Feeds, Undercode AI
