Potential Persistence Via Outlook Home Page
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About the rule
Rule Type
Standard
Rule Description
Detects potential persistence activity via outlook home page. An attacker can set a home page to achieve code execution and persistence by editing the WebView registry keys.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND ((OBJECTNAME contains "\Software\Microsoft\Office" AND OBJECTNAME contains "\Outlook\WebView") OR ((OBJECTNAME endswith "\Software\Microsoft\Office" AND isExist(OBJECTVALUENAME)) OR (OBJECTNAME endswith "\Outlook\WebView" AND isExist(OBJECTVALUENAME)))) AND OBJECTNAME endswith "\URL" select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Tobias Michalski (Nextron Systems), David Bertho (@dbertho) & Eirik Sveen (@0xSV1), Storebrand
