56 lines
1.7 KiB
YAML
56 lines
1.7 KiB
YAML
title: VMToolsd Suspicious Child Process
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author: behops, Bhabesh Raj
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date: 2021/10/08
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description: Detects suspicious child process creations of VMware Tools process which
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may indicate persistence setup
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_10:
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CommandLine: '*\VMware\VMware Tools\poweroff-vm-default.bat*'
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SELECTION_11:
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CommandLine: '*\VMware\VMware Tools\resume-vm-default.bat*'
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SELECTION_12:
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CommandLine: '*\VMware\VMware Tools\suspend-vm-default.bat*'
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SELECTION_2:
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ParentImage: '*\vmtoolsd.exe'
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SELECTION_3:
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Image: '*\cmd.exe'
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SELECTION_4:
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Image: '*\powershell.exe'
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SELECTION_5:
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Image: '*\rundll32.exe'
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SELECTION_6:
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Image: '*\regsvr32.exe'
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SELECTION_7:
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Image: '*\wscript.exe'
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SELECTION_8:
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Image: '*\cscript.exe'
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SELECTION_9:
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CommandLine: '*\VMware\VMware Tools\poweron-vm-default.bat*'
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condition: (SELECTION_1 and (SELECTION_2 and (SELECTION_3 or SELECTION_4 or SELECTION_5
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or SELECTION_6 or SELECTION_7 or SELECTION_8)) and not ((SELECTION_9 or SELECTION_10
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or SELECTION_11 or SELECTION_12)))
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falsepositives:
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- Legitimate use by adminstrator
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fields:
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- CommandLine
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- ParentCommandLine
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- Details
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id: 5687f942-867b-4578-ade7-1e341c46e99a
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level: high
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logsource:
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category: process_creation
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product: windows
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modified: 2021/10/10
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references:
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- https://bohops.com/2021/10/08/analyzing-and-detecting-a-vmtools-persistence-technique/
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status: experimental
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tags:
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- attack.execution
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- attack.persistence
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- attack.t1059
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yml_filename: sysmon_vmtoolsd_susp_child_process.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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