Sigma rule: Forest Blizzard APT - Custom Protocol Handler Creation

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-48a9f8f478c6, updated 2024-04-23T00:00:00.000Z.

Rule

Title: Forest Blizzard APT - Custom Protocol Handler Creation
Status: test
Level: high
Author: Nasreddine Bencherchali (Nextron Systems)
Date: 2024-04-23
File: rules-emerging-threats/2024/TA/Forest-Blizzard/registry_set_apt_forest_blizzard_custom_protocol_handler.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the setting of a custom protocol handler with the name "rogue".
Seen being created by Forest Blizzard APT as reported by MSFT.

Log source

product: windows
category: registry_set

Detection

selection:
    TargetObject|contains: '\PROTOCOLS\\Handler\rogue\CLSID'
    Details: '{026CC6D7-34B2-33D5-B551-CA31EB6CE345}'
condition: selection

False positives (as the rule lists them)

Unlikely

MITRE ATT&CK ids this rule names

T1547.001

References

https://www.microsoft.com/en-us/security/blog/2024/04/22/analyzing-forest-blizzards-custom-post-compromise-tool-for-exploiting-cve-2022-38028-to-obtain-credentials/

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2024/TA/Forest-Blizzard/registry_set_apt_forest_blizzard_custom_protocol_handler.yml

Sources and licences

SigmaHQ
"Forest Blizzard APT - Custom Protocol Handler Creation" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2024/TA/Forest-Blizzard/registry_set_apt_forest_blizzard_custom_protocol_handler.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Forest Blizzard APT - Custom Protocol Handler Creation",
entity page, dataset version ref-48a9f8f478c6, updated 2024-04-23T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/5cdeb555-65de-4767-99fe-e26807465148 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 5cdeb555-65de-4767-99fe-e26807465148, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.