AWS CloudWatch log stream deletion

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	AWS Audit Log
Detection Modules	Cloud
ATT&CK Tactic	Impact (TA0040), Defense Impairment (TA0112)
ATT&CK Technique	Data Destruction (T1485), Disable or Modify Tools: Disable or Modify Cloud Log (T1685.002)
Severity	Informational

Description

An AWS CloudWatch log stream was deleted, this action permanently deletes all the archives associated with this stream.

Attacker's Goals

An attacker may change the configuration of the affected resource to remain undetected.

Investigative actions

• Check why the identity deleted the log stream.
• Check which resource is affected by this change.