Detection catalogue
Explore published rules with transparent provenance, licensing, and ATT&CK mappings.
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Explore published rules with transparent provenance, licensing, and ATT&CK mappings.
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This analytic identifies Snort signatures that have triggered only once in the past 7 days across all Cisco Secure Firewall IntrusionEvent logs. While these rules typically do not trigger in day-to-day network activity, their sudden appearance may indicate early-stage compromise, previously unseen malware, or reconnaissance activity against less commonly exposed services. Investigating these outliers can provide valuable insight into new or low-noise adversary behaviors.
Covers 2 techniques no other published rule covers.
Outside the enterprise matrix
Published to signed-in readers
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