CVE-2023-40477 Potential Exploitation - .REV File Creation
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About the rule
Rule Type
Standard
Rule Description
Detects the creation of ".rev" files by WinRAR. Could be indicative of potential exploitation of CVE-2023-40477. Look for a suspicious execution shortly after creation or a WinRAR application crash.
Severity
Attention
Rule Requirement
Criteria
Action1: actionname = "File Created or Modified" AND PROCESSNAME endswith "\explorer.exe,\WinRAR.exe" AND (FILENAME endswith ".rev" OR OBJECTNAME endswith ".rev") select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.FILENAME,Action1.PROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
