Vaikora - High score quarantine

Identifies high-confidence phishing or suspected-threat quarantine events from Vaikora for O365. Fires when the classifier returns action_id 4 (Suspected) or 5 (Phishing) with confidence above 0.8 on a Microsoft 365…

Description

Identifies high-confidence phishing or suspected-threat quarantine events from Vaikora for O365. Fires when the classifier returns action_id 4 (Suspected) or 5 (Phishing) with confidence above 0.8 on a Microsoft 365 mailbox.

Detection logic

Detection requirements

Platform: Identity Provider Linux macOS Office Suite SaaS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: vaikorao365
Log source service: vaikorao365_quarantine_cl

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Detection rules

Vaikora - High score quarantine

Description

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules