All Backups Deleted Via Wbadmin.EXE

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About the rule

Rule Type

Standard

Rule Description

Detects the deletion of all backups or system state backups via "wbadmin.exe". This technique is used by numerous ransomware families and actors. This may only be successful on server platforms that have Windows Backup enabled.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (PROCESSNAME endswith "\wbadmin.exe" OR ORIGINALFILENAME = "WBADMIN.EXE") AND ((COMMANDLINE contains "delete" AND COMMANDLINE contains "backup") AND COMMANDLINE contains "keepVersions:0") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

frack113, Nasreddine Bencherchali (Nextron Systems)