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hayabusa/rules/Sigma/sysmon_susp_clr_logs.yml
2021-11-14 11:00:56 +09:00

40 lines
1.1 KiB
YAML

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