40 lines
1.1 KiB
YAML
40 lines
1.1 KiB
YAML
title: Suspcious CLR Logs Creation
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author: omkar72, oscd.community
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date: 2020/10/12
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description: Detects suspicious .NET assembly executions
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detection:
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SELECTION_1:
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EventID: 11
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SELECTION_2:
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TargetFilename: '*\AppData\Local\Microsoft\CLR*'
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SELECTION_3:
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TargetFilename: '*\UsageLogs\\*'
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SELECTION_4:
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TargetFilename: '*mshta*'
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SELECTION_5:
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TargetFilename: '*cscript*'
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SELECTION_6:
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TargetFilename: '*wscript*'
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SELECTION_7:
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TargetFilename: '*regsvr32*'
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SELECTION_8:
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TargetFilename: '*wmic*'
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condition: (SELECTION_1 and SELECTION_2 and SELECTION_3 and (SELECTION_4 or SELECTION_5
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or SELECTION_6 or SELECTION_7 or SELECTION_8))
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falsepositives:
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- Unknown
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id: e4b63079-6198-405c-abd7-3fe8b0ce3263
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level: high
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logsource:
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category: file_event
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product: windows
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references:
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- https://blog.menasec.net/2019/07/interesting-difr-traces-of-net-clr.html
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status: experimental
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tags:
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- attack.execution
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- attack.t1059.001
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yml_filename: sysmon_susp_clr_logs.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/file_event
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