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blue-team-tools/rules/windows/process_creation/win_nltest_recon.yml
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2021-09-10 13:51:52 +02:00

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YAML

title: Recon Activity with NLTEST
id: 5cc90652-4cbd-4241-aa3b-4b462fa5a248
description: Detects nltest commands that can be used for information discovery
references:
- https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/cc731935(v=ws.11)
- https://thedfirreport.com/2021/08/16/trickbot-leads-up-to-fake-1password-installation/
- https://attack.mitre.org/techniques/T1482/
- https://attack.mitre.org/techniques/T1016/
- https://book.hacktricks.xyz/windows/basic-cmd-for-pentesters
status: experimental
author: Craig Young, oscd.community, Georg Lauenstein
date: 2021/07/24
modified: 2021/08/19
tags:
- attack.discovery
- attack.t1016
- attack.t1482
logsource:
category: process_creation
product: windows
detection:
selection_nltest:
Image|endswith: '\nltest.exe'
selection_recon1:
CommandLine|contains|all:
- '/server'
- '/query'
selection_recon2:
CommandLine|contains:
- '/dclist:'
- '/parentdomain'
- '/domain_trusts'
- '/user'
condition: selection_nltest and (selection_recon1 or selection_recon2)
falsepositives:
- Legitimate administration use but user must be check out
level: medium
fields:
- Image
- User
- CommandLine
- ParentCommandLine