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.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| ladydebug.com/blog/2019/06/21/custom-protocol-handler-cph/ | Only this detection cites it |
From the source
- At source
- Open at source
- Upstream identifier
- fdbf0b9d-0182-4c43-893b-a1eaab92d085
- Tagged by the source as
- attack.defense-impairmentattack.persistence
Licence
- Published under
- Detection Rule License 1.1Read the licence
- Attribution
- Required
Authorship
- Published
- Aug 26, 2026
- Version
- 1