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c77a190a6b
Added events about security log clearance. Also, I think that the rule "sigma/rules/windows/builtin/win_susp_security_eventlog_cleared.yml" can be deleted.
32 lines
1.0 KiB
YAML
32 lines
1.0 KiB
YAML
title: Eventlog Cleared
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id: d99b79d2-0a6f-4f46-ad8b-260b6e17f982
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description: One of the Windows Eventlogs has been cleared. e.g. caused by "wevtutil cl" command execution
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references:
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- https://twitter.com/deviouspolack/status/832535435960209408
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- https://www.hybrid-analysis.com/sample/027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745?environmentId=100
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author: Florian Roth
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date: 2017/01/10
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modified: 2020/08/23
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tags:
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- attack.defense_evasion
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- attack.t1070 # an old one
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- attack.t1070.001
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- car.2016-04-002
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logsource:
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product: windows
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detection:
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selection1:
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service: security
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EventID:
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- 517
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- 1102
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selection2:
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service: system
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EventID: 104
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Source: Microsoft-Windows-Eventlog
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condition: selection1 or selection2
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falsepositives:
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- Rollout of log collection agents (the setup routine often includes a reset of the local Eventlog)
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- System provisioning (system reset before the golden image creation)
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level: high
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