UniFi Site Manager: IPS signature count dropped >50%

Identifies when the IPS signature ruleset count drops by more than half versus the 7-day maximum, indicating broken threat-intel feeds or rollback.

Detection logic

Detection requirements

Platform: Containers ESXi IaaS Identity Provider Linux macOS Network Devices Office Suite Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: unifisitemanagerconnectordefinition
Log source service: unifi_sitemanager_sites_cl

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Detection rules

UniFi Site Manager: IPS signature count dropped >50%

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules