Suspicious Remote Logon with Explicit Credentials (via security)

This rule detects anomalous processes logging on with explicit credentials

SigmamediumWindowsv1
sigma
title: Suspicious Remote Logon with Explicit Credentials (via security)
id: dc69425c-de76-5a7c-acad-53b20be0f614
status: stable
description: This rule detects anomalous processes logging on with explicit credentials
references:
    - https://attack.mitre.org/techniques/T1078/
    - https://drive.google.com/file/d/1lKya3_mLnR3UQuCoiYruO3qgu052_iS_/view
author: Huntrule Team
date: 2026-01-05
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.stealth
    - attack.t1078
    - attack.lateral-movement
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4648
        ProcessName|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
            - '\pwsh.exe'
            - '\winrs.exe'
            - '\wmic.exe'
            - '\net.exe'
            - '\net1.exe'
            - '\reg.exe'
    filter1:
        TargetServerName: 'localhost'
    filter2:
        SubjectUserName|endswith: '$'
        TargetUserName|endswith: '$'
    condition: selection and not 1 of filter*
falsepositives:
    - Unknown
level: medium

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.