38 lines
1.1 KiB
YAML
38 lines
1.1 KiB
YAML
title: Remove Windows Defender Definition Files
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author: frack113
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date: 2021/07/07
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description: Adversaries may disable security tools to avoid possible detection of
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their tools and activities by removing Windows Defender Definition Files
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_2:
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OriginalFileName: MpCmdRun.exe
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SELECTION_3:
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CommandLine: '* -RemoveDefinitions*'
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SELECTION_4:
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CommandLine: '* -All*'
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condition: (SELECTION_1 and SELECTION_2 and SELECTION_3 and SELECTION_4)
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falsepositives:
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- Unknown
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fields:
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- ComputerName
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- User
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- CommandLine
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- ParentCommandLine
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id: 9719a8aa-401c-41af-8108-ced7ec9cd75c
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level: medium
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logsource:
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category: process_creation
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product: windows
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references:
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1562.001/T1562.001.md
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- https://unit42.paloaltonetworks.com/unit42-gorgon-group-slithering-nation-state-cybercrime/
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status: experimental
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tags:
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- attack.defense_evasion
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- attack.t1562.001
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yml_filename: sysmon_remove_windows_defender_definition_files.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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