Suspicious Parent Double Extension File Execution
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About the rule
Rule Type
Standard
Rule Description
Detect execution of suspicious double extension files in ParentCommandLine
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND PARENTPROCESSNAME endswith ".doc.lnk,.docx.lnk,.xls.lnk,.xlsx.lnk,.ppt.lnk,.pptx.lnk,.rtf.lnk,.pdf.lnk,.txt.lnk,.doc.js,.docx.js,.xls.js,.xlsx.js,.ppt.js,.pptx.js,.rtf.js,.pdf.js,.txt.js" OR PARENTPROCESSCOMMANDLINE contains ".doc.lnk,.docx.lnk,.xls.lnk,.xlsx.lnk,.ppt.lnk,.pptx.lnk,.rtf.lnk,.pdf.lnk,.txt.lnk,.doc.js,.docx.js,.xls.js,.xlsx.js,.ppt.js,.pptx.js,.rtf.js,.pdf.js,.txt.js" 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)
