CodePage Modification Via MODE.COM To Russian Language
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About the rule
Rule Type
Standard
Rule Description
Detects a CodePage modification using the "mode.com" utility to Russian language. This behavior has been used by threat actors behind Dharma ransomware.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (PROCESSNAME endswith "\mode.com" OR ORIGINALFILENAME = "MODE.COM") AND ((COMMANDLINE contains " con " AND COMMANDLINE contains " cp " AND COMMANDLINE contains " select=") AND COMMANDLINE endswith "=1251,=866") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Joseliyo Sanchez, @Joseliyo_Jstnk
