Potential Encrypted Registry Blob Related To SNAKE Malware

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About the rule

Rule Type

Standard

Rule Description

Detects the creation of a registry value in the ".wav\\OpenWithProgIds" key with an uncommon name. This could be related to SNAKE Malware as reported by CISA

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Registry value modified" AND (OBJECTNAME contains "\SOFTWARE\Classes\.wav\OpenWithProgIds" OR (OBJECTNAME endswith "\SOFTWARE\Classes\.wav\OpenWithProgIds" AND isExist(OBJECTVALUENAME))) AND ((OBJECTNAME notendswith ".AssocFile.WAV" AND OBJECTVALUENAME notendswith ".AssocFile.WAV") AND (OBJECTNAME notcontains ".wav." AND (OBJECTNAME notcontains ".wav." AND OBJECTVALUENAME notcontains ".wav."))) select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Nasreddine Bencherchali (Nextron Systems)