Query: rule covering Detects modifications to an RDS cluster or its deletion, which may indicate potential data exfiltration attempts, unauth
Matching passage: Sigma rule: Detects modifications to an RDS cluster or its deletion, which may indicate potential data exfiltration attempts, unauth. Logsource: aws / cloudtrail. Rule: title: Modification or Deletion of an AWS RDS Cluster id: 457cc9ac-d8e6-4d1d-8c0e-251d0f11a74c status: experimental description: Detects modifications to an RDS cluster or its deletion, which may indicate potential data exfiltration attempts, unauthorized access, or exposure of sensitive information. references: - https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_ModifyDBCluster.html - https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_DeleteDBCluster.html - https://cloud.hacktricks.xyz/pentesting-cloud/aws-security/aws-privilege-escalation/aws-rds-privesc#rds-modifydbinstance author: Ivan Saakov date: 2024-12-06 tags: - attack.exfiltration - attack.t1020 logsource: product: aws service: cloudtrail detection: selection: eventSource: rds.amazonaws.com eventName: - ModifyDBCluster - DeleteDBCluster condition: selection falsepositives: - Verify if the modification or deletion was performed by an authorized administrator. - Confirm if the modification or deletion was part of a planned change or maintenance activity. level: high
Near-miss passage: Sigma rule: Detects the execution of Sysinternals ADExplorer with the "-snapshot" flag in order to save a local copy of the active d. Logsource: windows / process_creation. Rule: title: Active Directory Database Snapshot Via ADExplorer id: 9212f354-7775-4e28-9c9f-8f0a4544e664 related: - id: ef61af62-bc74-4f58-b49b-626448227652 type: derived status: test description: Detects the execution of Sysinternals ADExplorer with the "-snapshot" flag in order to save a local copy of the active directory database. This can be used by attackers to extract data for Bloodhound, usernames for password spraying or use the meta data for social engineering. The snapshot doesn't contain password hashes but there have been cases, where administrators put passwords in the comment field. references: - https://www.documentcloud.org/documents/5743766-Global-Threat-Report-2019.html - https://learn.microsoft.com/de-de/sysinternals/downloads/adexplorer - https://github.com/c3c/ADExplorerSnapshot.py/tree/f700904defac330802bbfedd1d8ffd9248f4ee24 - https://www.packetlabs.net/posts/scattered-spider-is-a-young-ransomware-gang-exploiting-large-corporations/ - https://www.nccgroup.com/us/research-blog/lapsus-recent-techniques-tactics-and-procedures/ - https://trustedsec.com/blog/adexplorer-on-engagements author: Nasreddine Bencherchali (Nextron Systems) date: 2023-03-14 modified: 2025-07-09 tags: - attack.discovery - attack.t1087.002 - attack.t1069.002 - attack.t1482 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: - \ADExp.exe - \ADExplorer.exe - \ADExplorer64.exe - \ADExplorer64a.exe - OriginalFileName: AdExp - Description: Active Directory Editor - Product: Sysinternals ADExplorer selection_cli: CommandLine|contains: snapshot condition: all of selection_* falsepositives: - Unknown level: medium