Boot Configuration Tampering Via Bcdedit.EXE
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About the rule
Rule Type
Standard
Rule Description
Detects the use of the bcdedit command to tamper with the boot configuration data. This technique is often times used by malware or attackers as a destructive way before launching ransomware.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (PROCESSNAME endswith "\bcdedit.exe" OR ORIGINALFILENAME = "bcdedit.exe") AND COMMANDLINE contains "set" AND ((COMMANDLINE contains "bootstatuspolicy" AND COMMANDLINE contains "ignoreallfailures") OR (COMMANDLINE contains "recoveryenabled" AND COMMANDLINE contains "no")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
E.M. Anhaus (originally from Atomic Blue Detections, Endgame), oscd.community
