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Richard Castro recently showcased his success with CrewCrow, a tool based on Zoom forensics, achieving a top 15 ranking on HackTheBox. This highlights the growing importance of forensic analysis in cybersecurity, particularly in investigating communication platforms like Zoom.
You Should Know: Zoom Forensic Analysis Techniques
Forensic analysis of Zoom involves extracting metadata, logs, and artifacts to investigate security incidents. Below are key commands and techniques used in Zoom forensics:
1. Locating Zoom Artifacts on Windows
Zoom stores logs, cache, and configuration files in:
C:\Users\<Username>\AppData\Roaming\Zoom\ C:\Users\<Username>\AppData\Local\Zoom\
To extract meeting logs:
dir /s C:\Users\%USERNAME%\AppData\Roaming\Zoom.txt
2. Analyzing Zoom Logs on Linux
If Zoom was used on Linux (via Wine or native), check:
grep -r "meeting" ~/.zoom/logs/
To extract IP addresses from logs:
cat ~/.zoom/logs/zoom_stdout.log | grep -oE "\b([0-9]{1,3}.){3}[0-9]{1,3}\b"
3. Extracting Metadata from Zoom Recordings
Zoom recordings (`.mp4`, `.mkv`) may contain metadata:
exiftool Zoom_Meeting_Recording.mp4
To check for embedded credentials or tokens:
strings Zoom_Meeting_Recording.mp4 | grep -i "token|auth"
4. Network Forensics for Zoom Traffic
Capture Zoom traffic with Wireshark/Tshark:
tshark -i eth0 -Y "ssl.handshake.type == 1 && ip.addr == <Zoom_Server_IP>" -w zoom_traffic.pcap
Extract SSL certificates:
openssl s_client -connect zoom.us:443 -showcerts
5. Using CrewCrow for Automated Zoom Forensics
CrewCrow automates evidence collection. Example usage:
python crewcrow.py --output ~/zoom_forensics --user <target_user>
Check for extracted credentials:
cat ~/zoom_forensics/credentials.txt
What Undercode Say
Zoom forensics is crucial for incident response and threat hunting. Tools like CrewCrow streamline investigations, but manual log analysis remains essential. Key takeaways:
– Always check AppData/Roaming and /Local/Zoom for logs.
– Use Wireshark to monitor Zoom’s encrypted traffic.
– Metadata extraction can reveal meeting details and user info.
– Automated tools like CrewCrow enhance efficiency.
For further reading:
Prediction
As remote work grows, Zoom forensics will become a critical skill in cybersecurity investigations, leading to more advanced tools like CrewCrow.
Expected Output:
Zoom_Meeting_Logs/ ├── chat_logs.txt ├── meeting_metadata.json └── network_traffic.pcap
IT/Security Reporter URL:
Reported By: Enleak Hackthebox – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
