SigmaHQ/rules/windows/file_event/sysmon_susp_clr_logs.yml
2021-07-01 12:18:30 +05:45

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YAML

title: Suspcious CLR Logs Creation
id: e4b63079-6198-405c-abd7-3fe8b0ce3263
description: Detects suspicious .NET assembly executions
references:
- https://blog.menasec.net/2019/07/interesting-difr-traces-of-net-clr.html
date: 2020/10/12
tags:
- attack.execution
- attack.t1059.001
status: experimental
author: omkar72, oscd.community
logsource:
category: file_event
product: windows
detection:
selection:
TargetFilename|contains|all:
- '\AppData\Local\Microsoft\CLR'
- '\UsageLogs\'
TargetFilename|contains:
- 'mshta'
- 'cscript'
- 'wscript'
- 'regsvr32'
- 'wmic'
condition: selection
falsepositives:
- Unknown
level: high