Mimikatz Use

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)

Sigma rule (View on GitHub)

 1title: Mimikatz Use
 2id: 06d71506-7beb-4f22-8888-e2e5e2ca7fd8
 3status: test
 4description: 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)
 5references:
 6    - https://tools.thehacker.recipes/mimikatz/modules
 7author: Florian Roth (Nextron Systems), David ANDRE (additional keywords)
 8date: 2017-01-10
 9modified: 2022-01-05
10tags:
11    - attack.s0002
12    - attack.lateral-movement
13    - attack.credential-access
14    - car.2013-07-001
15    - car.2019-04-004
16    - attack.t1003.002
17    - attack.t1003.004
18    - attack.t1003.001
19    - attack.t1003.006
20logsource:
21    product: windows
22detection:
23    keywords:
24        - 'dpapi::masterkey'
25        - 'eo.oe.kiwi'
26        - 'event::clear'
27        - 'event::drop'
28        - 'gentilkiwi.com'
29        - 'kerberos::golden'
30        - 'kerberos::ptc'
31        - 'kerberos::ptt'
32        - 'kerberos::tgt'
33        - 'Kiwi Legit Printer'
34        - 'lsadump::'
35        - 'mimidrv.sys'
36        - '\mimilib.dll'
37        - 'misc::printnightmare'
38        - 'misc::shadowcopies'
39        - 'misc::skeleton'
40        - 'privilege::backup'
41        - 'privilege::debug'
42        - 'privilege::driver'
43        - 'sekurlsa::'
44    filter:
45        EventID: 15  # Sysmon's FileStream Events (could cause false positives when Sigma rules get copied on/to a system)
46    condition: keywords and not filter
47falsepositives:
48    - Naughty administrators
49    - AV Signature updates
50    - Files with Mimikatz in their filename
51level: high

References

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