Indirect Inline Command Execution Via Bash.EXE
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About the rule
Rule Type
Standard
Rule Description
Detects execution of Microsoft bash launcher with the "-c" flag. This can be used to potentially bypass defenses and execute Linux or Windows-based binaries directly via bash.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (PROCESSNAME endswith ":\Windows\System32\bash.exe,:\Windows\SysWOW64\bash.exe" OR ORIGINALFILENAME = "Bash.exe") AND COMMANDLINE contains " -c " 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
