Query: detection rule: Detects DNS query requests to Devtunnels domains. Attackers can abuse that feature to establish a reverse shell or persi
Matching passage: Sigma rule: Detects DNS query requests to Devtunnels domains. Attackers can abuse that feature to establish a reverse shell or persi. Logsource: windows / dns_query. Rule: title: DNS Query To Devtunnels Domain id: 1cb0c6ce-3d00-44fc-ab9c-6d6d577bf20b related: - id: 9501f8e6-8e3d-48fc-a8a6-1089dd5d7ef4 type: similar - id: 4b657234-038e-4ad5-997c-4be42340bce4 type: similar - id: b3e6418f-7c7a-4fad-993a-93b65027a9f1 type: similar status: test description: 'Detects DNS query requests to Devtunnels domains. Attackers can abuse that feature to establish a reverse shell or persistence on a machine. ' references: - https://blueteamops.medium.com/detecting-dev-tunnels-16f0994dc3e2 - https://learn.microsoft.com/en-us/azure/developer/dev-tunnels/security - https://cydefops.com/devtunnels-unleashed author: citron_ninja date: 2023-10-25 modified: 2023-11-20 tags: - attack.command-and-control - attack.t1071.001 - attack.t1572 logsource: category: dns_query product: windows detection: selection: QueryName|endswith: .devtunnels.ms condition: selection falsepositives: - Legitimate use of Devtunnels will also trigger this. level: medium
Near-miss passage: Sigma rule: Detects a Windows Filtering Platform (WFP) blocked connection event involving common Endpoint Detection and Response (ED. Logsource: windows / security. Rule: title: Windows Filtering Platform Blocked Connection From EDR Agent Binary id: bacf58c6-e199-4040-a94f-95dea0f1e45a status: test description: 'Detects a Windows Filtering Platform (WFP) blocked connection event involving common Endpoint Detection and Response (EDR) agents. Adversaries may use WFP filters to prevent Endpoint Detection and Response (EDR) agents from reporting security events. ' references: - https://github.com/netero1010/EDRSilencer - https://github.com/amjcyber/EDRNoiseMaker - https://ghoulsec.medium.com/misc-series-4-forensics-on-edrsilencer-events-428b20b3f983 author: '@gott_cyber' date: 2024-01-08 tags: - attack.defense-impairment - attack.t1685 logsource: product: windows service: security definition: 'Requirements: Audit Filtering Platform Connection needs to be enabled' detection: selection: EventID: 5157 Application|endswith: - \AmSvc.exe - \cb.exe - \CETASvc.exe - \CNTAoSMgr.exe - \CrAmTray.exe - \CrsSvc.exe - \CSFalconContainer.exe - \CSFalconService.exe - \CybereasonAV.exe - \CylanceSvc.exe - \cyserver.exe - \CyveraService.exe - \CyvrFsFlt.exe - \EIConnector.exe - \elastic-agent.exe - \elastic-endpoint.exe - \EndpointBasecamp.exe - \ExecutionPreventionSvc.exe - \filebeat.exe - \fortiedr.exe - \hmpalert.exe - \hurukai.exe - \LogProcessorService.exe - \mcsagent.exe - \mcsclient.exe - \MsMpEng.exe - \MsSense.exe - \Ntrtscan.exe - \PccNTMon.exe - \QualysAgent.exe - \RepMgr.exe - \RepUtils.exe - \RepUx.exe - \RepWAV.exe - \RepWSC.exe - \sedservice.exe - \SenseCncProxy.exe - \SenseIR.exe - \SenseNdr.exe - \SenseSampleUploader.exe - \SentinelAgent.exe - \SentinelAgentWorker.exe - \SentinelBrowserNativeHost.exe - \SentinelHelperService.exe - \SentinelServiceHost.exe - \SentinelStaticEngine.exe - \SentinelStaticEngineScanner.exe - \sfc.exe - \sophos ui.exe - \sophosfilescanner.exe - \sophosfs.exe - \sophoshealth.exe - \sophosips.exe - \sophosLivequeryservice.exe - \sophosnetfilter.exe - \sophosntpservice.exe - \sophososquery.exe - \sspservice.exe - \TaniumClient.exe - \TaniumCX.exe - \TaniumDetectEngine.exe - \TMBMSRV.exe - \TmCCSF.exe - \TmListen.exe - \TmWSCSvc.exe - \Traps.exe - \winlogbeat.exe - \WSCommunicator.exe - \xagt.exe condition: selection falsepositives: - Unlikely level: high