Egress Defend - Dangerous Attachment Detected
Defend has detected a user has a suspicious file type from a suspicious sender in their mailbox.
Detection logic
Detection requirements
- Platform
- ContainersIaaSIdentity ProviderLinuxmacOSNoneOffice SuiteSaaSWindows
The rule states no platform. This is derived from the 5 ATT&CK techniques it maps to.
- Log source product
- egressdefend
- Log source service
- egressdefend_clegressdefend_v4_cl
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
Outside the enterprise matrix
No references are available for this detection.
From the source
- At source
- Open at source
- Upstream identifier
- a0e55dd4-8454-4396-91e6-f28fec3d2cab
- Tagged by the source as
- ExecutionInitialAccessPersistencePrivilegeEscalation
Licence
- Published under
- MIT LicenseRead the licence
- Attribution
- Required
- Obtained under
- MITRead the origin licence
Authorship
- Published
- Sep 4, 2026
- Version
- 2