39 lines
1.2 KiB
YAML
39 lines
1.2 KiB
YAML
title: Path To Screensaver Binary Modified
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author: Bartlomiej Czyz @bczyz1, oscd.community
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date: 2020/10/11
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description: Detects value modification of registry key containing path to binary
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used as screensaver.
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detection:
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SELECTION_1:
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EventID: 12
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SELECTION_2:
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EventID: 13
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SELECTION_3:
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EventID: 14
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SELECTION_4:
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TargetObject: '*\Control Panel\Desktop\SCRNSAVE.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: '*\explorer.exe'
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condition: ((SELECTION_1 or SELECTION_2 or SELECTION_3) and SELECTION_4 and not
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((SELECTION_5 or SELECTION_6)))
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falsepositives:
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- Legitimate modification of screensaver.
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id: 67a6c006-3fbe-46a7-9074-2ba3b82c3000
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level: medium
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logsource:
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category: registry_event
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product: windows
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references:
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1546.002/T1546.002.md
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- https://www.welivesecurity.com/wp-content/uploads/2017/08/eset-gazer.pdf
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status: experimental
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tags:
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- attack.persistence
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- attack.privilege_escalation
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- attack.t1546.002
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yml_filename: sysmon_modify_screensaver_binary_path.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/registry_event
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