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Windows Filtering Platform Blocked Connection From EDR Agent Binary
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.
Detection Logic
{
"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"
} False Positives
- ⚠ Unlikely
Field Validations
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