add: NetSupport Manager RAT cleartext HTTP C2 detection (Zeek)#6110
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cyberlandji wants to merge 1 commit into
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add: NetSupport Manager RAT cleartext HTTP C2 detection (Zeek)#6110cyberlandji wants to merge 1 commit into
cyberlandji wants to merge 1 commit into
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Welcome @cyberlandji 👋
It looks like this is your first pull request on the Sigma rules repository!
Please make sure to read the SigmaHQ conventions to make sure your contribution is adhering to best practices and has all the necessary elements in place for a successful approval.
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Summary of the Pull Request
Adds a Zeek
httpdetection for NetSupport Manager RAT C2 over cleartext HTTP on port 443, matching theNetSupport Manager/User-Agent whenid.resp_pis 443. Legitimate NetSupport uses TLS on 443, so plaintext HTTP carrying this UA is characteristic of the RAT blending C2 with HTTPS egress. Complements existing host-based NetSupport coverage (process_creation) at the network layer. Validated against a real NetSupport Zeek capture; passes sigma-cli check.Changelog
new: NetSupport Manager RAT Cleartext HTTP C2
Example Log Event
Fixed Issues
SigmaHQ Rule Creation Conventions