Suspicious Execution of PUA - Sysinternals Utilities - Registry (via registry_set)

This rule detects the execution of some potentially unwanted tools such as PsExec, Procdump, etc. (part of the Sysinternals suite) via the creation of the "accepteula" registry key.

SigmamediumWindowsv1
sigma
title: Suspicious Execution of PUA - Sysinternals Utilities - Registry (via registry_set)
id: 97c72958-53a0-5fb5-a75b-cfabbe490aab
status: stable
description: This rule detects the execution of some potentially unwanted tools such as PsExec, Procdump, etc. (part of the Sysinternals suite) via the creation of the "accepteula" registry key.
references:
    - https://attack.mitre.org/techniques/T1588/002/
    - https://twitter.com/Moti_B/status/1008587936735035392
author: Huntrule Team
date: 2026-01-26
tags:
    - attack.resource-development
    - attack.t1588.002
logsource:
    product: windows
    category: registry_set
detection:
    selection:
        TargetObject|contains:
            - '\Active Directory Explorer'
            - '\Handle'
            - '\LiveKd'
            - '\Process Explorer'
            - '\ProcDump'
            - '\PsExec'
            - '\PsLoglist'
            - '\PsPasswd'
            - '\SDelete'
            - '\Sysinternals'
        TargetObject|endswith: '\EulaAccepted'
    condition: selection
falsepositives:
    - Unknown
level: medium
regression_tests_path: regression_data/rules/windows/registry/registry_set/registry_set_pua_sysinternals_susp_execution_via_eula/info.yml

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.