kevmap

TechniquesT1619 › AN1594

AN1594 Analytic 1594

IaaS · attack.mitre.org · ATT&CK Enterprise v19.2

<p>Detection of suspicious enumeration of cloud storage objects via API calls such as AWS S3 ListObjectsV2, Azure List Blobs, or GCP ListObjects. Correlate access with account role, user context, and prior authentication activity to identify anomalous usage patterns (e.g., unusual account, unexpected regions, or large-scale enumeration in short time windows).</p>
Detects
T1619 Cloud Storage Object Discovery
Part of
DET0578 Detection Strategy for Cloud Storage Object Discovery

Log sources and channels

Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.

Log sourceChannelData component
AWS:CloudTrailListObjectsV2DC0017 Cloud Storage Enumeration
AWS:CloudTrailGetObject, CopyObjectDC0025 Cloud Storage Access

Mutable elements

Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.

FieldDescription
TimeWindowCorrelation window (e.g., multiple enumeration calls within 5 minutes) may indicate automated discovery versus normal user activity.
UserContextExpected service accounts and IAM roles that regularly enumerate storage; deviations may indicate suspicious activity.
RegionScopeUnusual enumeration of buckets across multiple geographic regions in short succession may indicate adversary reconnaissance.