Permission Check Via Accesschk.EXE
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About the rule
Rule Type
Standard
Rule Description
Detects the usage of the "Accesschk" utility, an access and privilege audit tool developed by SysInternal and often being abused by attacker to verify process privileges
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (PRODUCT_NAME endswith "AccessChk" OR MESSAGE contains "Reports effective permissions" OR PROCESSNAME endswith "\accesschk.exe,\accesschk64.exe" OR ORIGINALFILENAME = "accesschk.exe") AND COMMANDLINE contains "uwcqv ,kwsu ,qwsu ,uwdqs " select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Teymur Kheirkhabarov (idea), Mangatas Tondang, oscd.community, Nasreddine Bencherchali (Nextron Systems)
