SNAKE Malware Service Persistence

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About the rule

Rule Type

Standard

Rule Description

Detects the creation of a service named "WerFaultSvc" which seems to be used by the SNAKE malware as a persistence mechanism as described by CISA in their report

Severity

Critical

Rule Requirement

Criteria

Action1: actionname = "Service Operation" AND SOURCE = "Service Control Manager" AND SERVICENAME contains "WerFaultSvc" AND OBJECTNAME startswith "C:\Windows\WinSxS" AND OBJECTNAME endswith "\WerFault.exe" select Action1.HOSTNAME,Action1.MESSAGE,Action1.ERRORCODE,Action1.SERVICENAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Nasreddine Bencherchali (Nextron Systems)