Mimikatz Use

testhigh
log source: windowsauthor Florian Roth (Nextron Systems), David ANDRE (additional keywords)date 2017-01-10
01

description

What this is, in brief.

This method detects mimikatz keywords in different Eventlogs (some of them only appear in older Mimikatz version that are however still used by different threat groups)

02

tags

attack.s0002attack.lateral-movementattack.credential-accesscar.2013-07-001car.2019-04-004attack.t1003.002attack.t1003.004attack.t1003.001attack.t1003.006
03

rule source (YAML)

title: Mimikatz Use
id: 06d71506-7beb-4f22-8888-e2e5e2ca7fd8
status: test
description: This method detects mimikatz keywords in different Eventlogs (some of them only appear in older Mimikatz version that are however still used by different threat groups)
references:
    - https://tools.thehacker.recipes/mimikatz/modules
author: Florian Roth (Nextron Systems), David ANDRE (additional keywords)
date: 2017-01-10
modified: 2022-01-05
tags:
    - attack.s0002
    - attack.lateral-movement
    - attack.credential-access
    - car.2013-07-001
    - car.2019-04-004
    - attack.t1003.002
    - attack.t1003.004
    - attack.t1003.001
    - attack.t1003.006
logsource:
    product: windows
detection:
    keywords:
        - 'dpapi::masterkey'
        - 'eo.oe.kiwi'
        - 'event::clear'
        - 'event::drop'
        - 'gentilkiwi.com'
        - 'kerberos::golden'
        - 'kerberos::ptc'
        - 'kerberos::ptt'
        - 'kerberos::tgt'
        - 'Kiwi Legit Printer'
        - 'lsadump::'
        - 'mimidrv.sys'
        - '\mimilib.dll'
        - 'misc::printnightmare'
        - 'misc::shadowcopies'
        - 'misc::skeleton'
        - 'privilege::backup'
        - 'privilege::debug'
        - 'privilege::driver'
        - 'sekurlsa::'
    filter:
        EventID: 15  # Sysmon's FileStream Events (could cause false positives when Sigma rules get copied on/to a system)
    condition: keywords and not filter
falsepositives:
    - Naughty administrators
    - AV Signature updates
    - Files with Mimikatz in their filename
level: high
regression_tests_path: regression_data/rules/windows/builtin/win_alert_mimikatz_keywords/info.yml
04

detects techniques (4)

ATT&CK techniques this enables or maps to.

05

software named (1)

Malware and tools associated with this.

06

references

External citations — patches, advisories, analysis.