AWS EC2 infrastructure enumeration activity

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	1 Hour
Deduplication Period	1 Day
Required Data	AWS Audit Log
Detection Modules	Cloud
ATT&CK Tactic	Discovery (TA0007)
ATT&CK Technique	Cloud Infrastructure Discovery (T1580)
Severity	Informational

Description

EC2 infrastructure enumeration activity detected within a specific AWS region.

Attacker's Goals

• Discover EC2 resources and network setup to find potential weaknesses or targets.
• Use the gathered information to enable lateral movement, privilege escalation, or data exfiltration.

Investigative actions

• Identify and review the specific EC2 enumeration API calls executed and their frequency.
• Verify the identity performing the calls and assess if this behavior is typical or anomalous.
• Correlate with other discovery activities and check related logs for suspicious patterns or subsequent actions.