Nasreddine Bencherchali
598d29f811
chore: change tags, date, modified fields to comply with v2 of the Sigma spec. chore: update the related type from `obsoletes` to `obsolete`. chore: update local json schema to the latest version.
37 lines
993 B
YAML
37 lines
993 B
YAML
title: Suspicious Reg Add BitLocker
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id: 0e0255bf-2548-47b8-9582-c0955c9283f5
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status: test
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description: Detects suspicious addition to BitLocker related registry keys via the reg.exe utility
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references:
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- https://thedfirreport.com/2021/11/15/exchange-exploit-leads-to-domain-wide-ransomware/
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author: frack113
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date: 2021-11-15
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modified: 2022-09-09
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tags:
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- attack.impact
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- attack.t1486
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logsource:
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category: process_creation
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product: windows
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detection:
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selection:
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CommandLine|contains|all:
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- 'REG'
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- 'ADD'
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- '\SOFTWARE\Policies\Microsoft\FVE'
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- '/v'
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- '/f'
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CommandLine|contains:
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- 'EnableBDEWithNoTPM'
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- 'UseAdvancedStartup'
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- 'UseTPM'
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- 'UseTPMKey'
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- 'UseTPMKeyPIN'
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- 'RecoveryKeyMessageSource'
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- 'UseTPMPIN'
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- 'RecoveryKeyMessage'
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condition: selection
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falsepositives:
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- Unlikely
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level: high
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