frack113
38 lines
1.3 KiB
YAML
38 lines
1.3 KiB
YAML
title: Suspicious Sysmon as Execution Parent
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id: 6d1058a4-407e-4f3a-a144-1968c11dc5c3
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status: experimental
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description: Detects suspicious process executions in which Sysmon itself is the parent of a process, which could be a sign of exploitation (e.g. CVE-2022-41120)
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references:
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- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41120
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- https://twitter.com/filip_dragovic/status/1590052248260055041
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- https://twitter.com/filip_dragovic/status/1590104354727436290
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author: Florian Roth, Tim Shelton (fp werfault)
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date: 2022/11/10
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modified: 2022/12/30
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tag:
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- attack.privilege_escalation
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- attack.t1068
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- cve.2022.41120
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logsource:
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product: windows
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category: process_creation
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detection:
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selection:
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ParentImage|endswith:
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- '\Sysmon.exe'
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- '\Sysmon64.exe'
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filter:
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- Image:
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- 'C:\Windows\Sysmon.exe'
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- 'C:\Windows\Sysmon64.exe'
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- 'C:\Windows\System32\conhost.exe'
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- 'wevtutil.exe'
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- 'C:\WINDOWS\system32\wevtutil.exe'
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- 'C:\Windows\System32\WerFault.exe' # When Sysmon crashes
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- Image|endswith: '\AppData\Local\Temp\Sysmon.exe' # When launching Sysmon 32bit version.
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condition: selection and not filter
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falsepositives:
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- Unknown
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level: high
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