Metasploit SMB Authentication

Description

Alerts on Metasploit host's authentications on the domain.

Query · sigma

selection1:
  EventID:
  - 4625
  - 4624
  LogonType: 3
  AuthenticationPackageName: NTLM
  WorkstationName|re: ^[A-Za-z0-9]{16}$
selection2:
  EventID: 4776
  Workstation|re: ^[A-Za-z0-9]{16}$
condition: 1 of selection*

Known false positives

  • Linux hostnames composed of 16 characters.
Raw source Metasploit SMB Authentication · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Metasploit SMB Authentication
id: 72124974-a68b-4366-b990-d30e0b2a190d
status: test
description: Alerts on Metasploit host's authentications on the domain.
references:
    - https://github.com/rapid7/metasploit-framework/blob/1416b5776d963f21b7b5b45d19f3e961201e0aed/lib/rex/proto/smb/client.rb
author: Chakib Gzenayi (@Chak092), Hosni Mribah
date: 2020-05-06
modified: 2024-01-25
tags:
    - attack.lateral-movement
    - attack.t1021.002
logsource:
    product: windows
    service: security
detection:
    selection1:
        EventID:
            - 4625
            - 4624
        LogonType: 3
        AuthenticationPackageName: 'NTLM'
        WorkstationName|re: '^[A-Za-z0-9]{16}$'
    selection2:
        EventID: 4776
        Workstation|re: '^[A-Za-z0-9]{16}$'
    condition: 1 of selection*
falsepositives:
    - Linux hostnames composed of 16 characters.
level: high

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