Possible Impacket SecretDump Remote Activity - Zeek

testhigh
log source: zeek · smb_filesauthor Samir Bousseaden, @neu5rondate 2020-03-19
01

description

What this is, in brief.

Detect AD credential dumping using impacket secretdump HKTL. Based on the SIGMA rules/windows/builtin/win_impacket_secretdump.yml

02

tags

attack.credential-accessattack.t1003.002attack.t1003.004attack.t1003.003
03

rule source (YAML)

title: Possible Impacket SecretDump Remote Activity - Zeek
id: 92dae1ed-1c9d-4eff-a567-33acbd95b00e
status: test
description: 'Detect AD credential dumping using impacket secretdump HKTL. Based on the SIGMA rules/windows/builtin/win_impacket_secretdump.yml'
references:
    - https://web.archive.org/web/20230329153811/https://blog.menasec.net/2019/02/threat-huting-10-impacketsecretdump.html
author: 'Samir Bousseaden, @neu5ron'
date: 2020-03-19
modified: 2021-11-27
tags:
    - attack.credential-access
    - attack.t1003.002
    - attack.t1003.004
    - attack.t1003.003
logsource:
    product: zeek
    service: smb_files
detection:
    selection:
        path|contains|all:
            - '\'
            - 'ADMIN$'
        name|contains: 'SYSTEM32\'
        name|endswith: '.tmp'
    condition: selection
falsepositives:
    - Unknown
level: high
04

detects techniques (3)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.