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MediumSigmaHQNasreddine Bencherchali (Nextron Systems)

Potential Persistence Via Custom Protocol Handler

Detects potential persistence activity via the registering of a new custom protocole handlers. While legitimate applications register protocole handlers often times during installation. And attacker can abuse this by…

Description

Detects potential persistence activity via the registering of a new custom protocole handlers. While legitimate applications register protocole handlers often times during installation. And attacker can abuse this by setting a custom handler to be used as a persistence mechanism.

Detection logic

Detection requirements

Platform
Windows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
windows
Log source category
registry_set

Known benign triggers

  • Many legitimate applications can register a new custom protocol handler. Additional filters needs to applied according to your environment.

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