Suspicious AWS Secrets Manager Secret Value Retrieval (via cloudtrail)

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1552.001Credentials In Files
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects retrieval of stored secret values from AWS Secrets Manager, a credential access action Muddled Libra performs to harvest embedded keys and passwords for deeper compromise. Because applications legitimately call this API, the event is best correlated with unusual principals or volumes rather than treated as malicious on its own.

Reporting behind it

Related detections9 linkedT1552.001 — drag to rearrange

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Suspicious sqlcipher Decryption of Signal Database by WAVESIGN (via process_creation)

Suspicious Cloud Instance Metadata Access via Command Line Tool

Suspicious Environment Variable Dump Piped to Base64 for CI Credential Exfil

Suspicious GitHub CLI Token Extraction With Secret Scanner in CI Pipeline

Suspicious Secret Scanning with trufflehog Verified Results

Suspicious AWS Secrets Manager Secret Value Retrieval (via cloudtrail)

Pivot detection · T1552.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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