Query: Sigma rule for Detects when AppLocker "Audit only" enforcement mode reports that an Application, DLL, Script, MSI, or Packaged-App woul
Matching passage: Sigma rule: Detects when AppLocker "Audit only" enforcement mode reports that an Application, DLL, Script, MSI, or Packaged-App woul. Logsource: windows / applocker. Rule: title: AppLocker Application Would Have Been Blocked id: 557e3bd3-7f21-495d-8d50-7c8bdfb8041c status: experimental description: 'Detects when AppLocker "Audit only" enforcement mode reports that an Application, DLL, Script, MSI, or Packaged-App would have been blocked if AppLocker "Enforce rules" enforcement mode was enabled. ' references: - https://learn.microsoft.com/en-us/windows/security/application-security/application-control/windows-defender-application-control/applocker/what-is-applocker - https://learn.microsoft.com/en-us/windows/security/application-security/application-control/windows-defender-application-control/applocker/using-event-viewer-with-applocker - https://www.splunk.com/en_us/blog/security/deploy-test-monitor-mastering-microsoft-applocker-part-2.html - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/ee844150(v=ws.11) author: heyyanu date: 2026-03-26 tags: - attack.execution - attack.t1204.002 - attack.t1059.001 - attack.t1059.003 - attack.t1059.005 - attack.t1059.006 - attack.t1059.007 logsource: product: windows service: applocker detection: selection: EventID: - 8003 - 8006 - 8021 - 8024 condition: selection falsepositives: - Expected during AppLocker policy testing and audit mode deployments level: medium
Near-miss passage: Sigma rule: Detects execution of RClone utility for exfiltration as used by various ransomwares strains like REvil, Conti, FiveHands. Logsource: windows / process_creation. Rule: title: PUA - Rclone Execution id: e37db05d-d1f9-49c8-b464-cee1a4b11638 related: - id: a0d63692-a531-4912-ad39-4393325b2a9c type: obsolete - id: cb7286ba-f207-44ab-b9e6-760d82b84253 type: obsolete status: test description: Detects execution of RClone utility for exfiltration as used by various ransomwares strains like REvil, Conti, FiveHands, etc references: - https://research.nccgroup.com/2021/05/27/detecting-rclone-an-effective-tool-for-exfiltration/ - https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware - https://us-cert.cisa.gov/ncas/analysis-reports/ar21-126a - https://labs.sentinelone.com/egregor-raas-continues-the-chaos-with-cobalt-strike-and-rclone - https://www.splunk.com/en_us/blog/security/darkside-ransomware-splunk-threat-update-and-detections.html author: Bhabesh Raj, Sittikorn S, Aaron Greetham (@beardofbinary) - NCC Group date: 2021-05-10 modified: 2023-03-05 tags: - attack.exfiltration - attack.t1567.002 logsource: product: windows category: process_creation detection: selection_specific_options: CommandLine|contains|all: - '--config ' - '--no-check-certificate ' - ' copy ' selection_rclone_img: - Image|endswith: \rclone.exe - Description: Rsync for cloud storage selection_rclone_cli: CommandLine|contains: - pass - user - copy - sync - config - lsd - remote - ls - mega - pcloud - ftp - ignore-existing - auto-confirm - transfers - multi-thread-streams - 'no-check-certificate ' condition: selection_specific_options or all of selection_rclone_* falsepositives: - Unknown level: high