Analytics BIOC Informational

Suspicious activity on logging bucket

An identity performed a suspicious activity on bucket used to store logs.

Module:
Cortex Cloud
Licensed by:
Cloud Runtime Security (CRS)
Data source:
AWS Audit Log
ATT&CK tactics: Defense Evasion (TA0005)
ATT&CK techniques: Impair Defenses (T1562) Impair Defenses: Disable or Modify Cloud Logs (T1562.008)
Detector tags: Cloud Log Tampering Analytics
Attacker's goals:

Evade detection by tampering the logs.

Investigative actions:

Verify whether the identity attempted to access the bucket. Verify no logs were modified in the bucket.

Test period:
N/A (single event)
Deduplication:
1 Day
2 variations:
  • Suspicious deletion on CloudTrail logging bucket Medium (parent: Informational)
  • Suspicious deletion on S3 access logs bucket Medium (parent: Informational)