Possible Registry Persistence Attempt Through DbgManagedDebugger (via registry_set)

title: Possible Registry Persistence Attempt Through DbgManagedDebugger (via registry_set)
id: e91ae0e7-68a2-59c1-8f0d-ade52ce27bd4
status: stable
description: This rule detects the addition of the "Debugger" value to the "DbgManagedDebugger" key to achieve persistence. Which will get invoked when an application crashes
references:
    - https://attack.mitre.org/techniques/T1574/
    - https://www.hexacorn.com/blog/2013/09/19/beyond-good-ol-run-key-part-4/
    - https://github.com/last-byte/PersistenceSniper
author: Huntrule Team
date: 2026-01-17
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|endswith: '\Microsoft\.NETFramework\DbgManagedDebugger'
    filter:
        Details: '"C:\Windows\system32\vsjitdebugger.exe" PID %d APPDOM %d EXTEXT "%s" EVTHDL %d'
    condition: selection and not filter
falsepositives:
    - Unknown
level: medium