AWSCloudTrail
| where EventName == "CreateAccessKey"
| project-away SourceSystem,Category,Type,TenantId,EventVersion,SessionIssuerAccountId
| extend UserName = substring(UserIdentityPrincipalid, indexof_regex(UserIdentityPrincipalid, ":") + 1)
| extend Name = split(UserName,'@')[0],UpnSuffix = split(UserName,'@')[1]
version: 1.0.1
severity: Medium
relevantTechniques:
- T1098
triggerOperator: gt
requiredDataConnectors:
- dataTypes:
- AWSCloudTrail
connectorId: AWS
queryFrequency: 15m
triggerThreshold: 0
entityMappings:
- fieldMappings:
- columnName: Name
identifier: Name
- columnName: UpnSuffix
identifier: UPNSuffix
entityType: Account
- fieldMappings:
- columnName: SourceIpAddress
identifier: Address
entityType: IP
id: 9a6554e6-63d9-4f94-9b32-64d1d40628f2
status: Available
description: |
'Establishes persistence by creating an access key on an existing IAM user. This type of action should be validated by Account Admin of AWS Account. Ref : https://stratus-red-team.cloud/attack-techniques/AWS/aws.persistence.iam-backdoor-user/'
name: Creation of Access Key for IAM User
query: |
AWSCloudTrail
| where EventName == "CreateAccessKey"
| project-away SourceSystem,Category,Type,TenantId,EventVersion,SessionIssuerAccountId
| extend UserName = substring(UserIdentityPrincipalid, indexof_regex(UserIdentityPrincipalid, ":") + 1)
| extend Name = split(UserName,'@')[0],UpnSuffix = split(UserName,'@')[1]
queryPeriod: 15m
tactics:
- Persistence
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_UserAccessKeyCreated.yaml
