New Netsh Helper DLL Registered From A Suspicious Location
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About the rule
Rule Type
Standard
Rule Description
Detects changes to the Netsh registry key to add a new DLL value that is located on a suspicious location. This change might be an indication of a potential persistence attempt by adding a malicious Netsh helper
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND (OBJECTNAME contains "\SOFTWARE\Microsoft\NetSh" OR (OBJECTNAME endswith "\SOFTWARE\Microsoft" AND OBJECTVALUENAME startswith "NetSh")) AND (INFORMATION contains ":\Perflogs\,:\Users\Public\,:\Windows\Temp\,\AppData\Local\Temp\,\Temporary Internet" OR ((INFORMATION contains ":\Users" AND INFORMATION contains "\Favorites") OR (INFORMATION contains ":\Users" AND INFORMATION contains "\Favourites") OR (INFORMATION contains ":\Users" AND INFORMATION contains "\Contacts") OR (INFORMATION contains ":\Users" AND INFORMATION contains "\Pictures"))) select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
