Microsoft Office Protected View Disabled
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About the rule
Rule Type
Standard
Rule Description
Detects changes to Microsoft Office protected view registry keys with which the attacker disables this feature.
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "Registry value modified" AND ((OBJECTNAME contains "\SOFTWARE\Microsoft\Office" AND OBJECTNAME contains "\Security\ProtectedView") OR ((OBJECTNAME endswith "\SOFTWARE\Microsoft\Office" AND isExist(OBJECTVALUENAME)) OR (OBJECTNAME endswith "\Security\ProtectedView" AND isExist(OBJECTVALUENAME)))) AND (((INFORMATION = "DWORD (0x00000001)" OR (CHANGES = 1 AND NEWTYPE = "REG_DWORD")) AND OBJECTNAME endswith "\DisableAttachementsInPV,\DisableInternetFilesInPV,\DisableIntranetCheck,\DisableUnsafeLocationsInPV") OR ((INFORMATION = "DWORD (0x00000000)" OR (CHANGES = 0 AND NEWTYPE = "REG_DWORD")) AND OBJECTNAME endswith "\enabledatabasefileprotectedview,\enableforeigntextfileprotectedview"))
select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES,Action1.USERNAME,Action1.DOMAIN,Action1.NEWTYPE,Action1.OBJECTVALUENAME,Action1.OLDTYPE
Detection
Execution Mode
realtime
Log Sources
Windows
Author
frack113, Nasreddine Bencherchali (Nextron Systems)
