↳ Source GitHubRègle analytiqueLow
AWSCloudTrail - Monitor AWS Credential abuse or hijacking
Description
Identifies AWS STS `GetCallerIdentity` calls made by assumed-role sessions.
An attacker who has assumed the role of a legitimate account can call the GetCallerIdentity function to determine what account they are using.
A legitimate user using legitimate credentials would not need to call GetCallerIdentity since they should already know what account they are using.
More Information: https://duo.com/decipher/trailblazer-hunts-compromised-credentials-in-aws
AWS STS GetCallerIdentity API: https://docs.aws.amazon.com/STS/latest/APIReference/API_GetCallerIdentity.html
- Type de règle
- Scheduled
- Version
- 1.0.4
- Statut déclaré
- Available
- Fréquence
- 1d
- Période analysée
- 1d
- Déclenchement
- gt 0
Couverture MITRE déclarée
Sources déclarées
Métadonnées du fichier source. Aucune dépendance déduite du KQL.
Connecteurs
Types de données
Requête KQL
Requête originale, sans modification.
AWSCloudTrail
| where EventName =~ "GetCallerIdentity" and UserIdentityType =~ "AssumedRole"
| extend UserIdentityArn = iif(isempty(UserIdentityArn), tostring(parse_json(Resources)[0].ARN), UserIdentityArn)
| extend UserName = tostring(split(UserIdentityArn, '/')[-1])
| extend AccountName = case(UserIdentityPrincipalid == "Anonymous", "Anonymous", isempty(UserIdentityUserName), UserName, UserIdentityUserName)
| extend AccountName = iif(AccountName contains "@", tostring(split(AccountName, '@', 0)[0]), AccountName),
AccountUPNSuffix = iif(AccountName contains "@", tostring(split(AccountName, '@', 1)[0]), "")
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by SourceIpAddress, EventName, EventTypeName, UserIdentityType, RecipientAccountId, AccountName, AccountUPNSuffix, UserIdentityAccountId, UserIdentityPrincipalid,
UserAgent, UserIdentityUserName, SessionMfaAuthenticated, AWSRegion, EventSource, AdditionalEventData, ResponseElements
| extend timestamp = StartTime
| sort by EndTime desc nulls last
Entités déclarées
Contenus associés
Liens établis à partir des identifiants déclarés et des manifests des solutions.
Traçabilité de la source
GitHubLes valeurs affichées proviennent des fichiers du dépôt Azure/Azure-Sentinel. Elles décrivent le modèle publié, pas la configuration de votre workspace.
- Commit
9800e51↗- Identifiant source
32555639-b639-4c2b-afda-c0ae0abefa55
GSTEP / SUIVI DU CATALOGUE
Ajouté au catalogue : 16 sept. 2026 · 05:49 UTC
Dernier changement observé : 16 sept. 2026 · 05:49 UTC