huntrule

Possible Persistence Through Outlook Today Page (via registry_set)

This rule detects potential persistence behavior via outlook today page. An adversary can set a custom page to execute arbitrary code and link to it via the registry values "URL" and "UserDefinedUrl".

SigmahighWindowsv1
Full detection rule

Unlock this rule to view and copy it

Rule logic is available with an unlock credit. The public page keeps its context, mappings and implementation details visible.

Sign in to unlock

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.