SigmaHQ/rules/windows/process_creation/win_system_exe_anomaly.yml
2020-03-24 19:48:24 +01:00

51 lines
1.4 KiB
YAML

title: System File Execution Location Anomaly
id: e4a6b256-3e47-40fc-89d2-7a477edd6915
status: experimental
description: Detects a Windows program executable started in a suspicious folder
references:
- https://twitter.com/GelosSnake/status/934900723426439170
author: Florian Roth, Patrick Bareiss
date: 2017/11/27
tags:
- attack.defense_evasion
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection:
Image:
- '*\svchost.exe'
- '*\rundll32.exe'
- '*\services.exe'
- '*\powershell.exe'
- '*\regsvr32.exe'
- '*\spoolsv.exe'
- '*\lsass.exe'
- '*\smss.exe'
- '*\csrss.exe'
- '*\conhost.exe'
- '*\wininit.exe'
- '*\lsm.exe'
- '*\winlogon.exe'
- '*\explorer.exe'
- '*\taskhost.exe'
filter:
Image:
- 'C:\Windows\System32\\*'
- 'C:\Windows\system32\\*'
- 'C:\Windows\SysWow64\\*'
- 'C:\Windows\SysWOW64\\*'
- 'C:\Windows\explorer.exe'
- 'C:\Windows\winsxs\\*'
- 'C:\Windows\WinSxS\\*'
- '\SystemRoot\System32\\*'
condition: selection and not filter
fields:
- ComputerName
- User
- Image
falsepositives:
- Exotic software
level: high