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Rule simplification
Two selection fields are reduced to one. HKCU and HKLM registry value changes are considered, thus wildcards are added. No change at details.
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@ -12,9 +12,11 @@ logsource:
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product: windows
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service: sysmon
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detection:
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selection1:
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selection:
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EventID: 13
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TargetObject: '\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\*'
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TargetObject:
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- '*\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\*'
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- '*\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\*'
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Details:
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- 'C:\Windows\Temp\*'
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- '*\AppData\*'
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@ -23,18 +25,7 @@ detection:
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- 'C:\Users\Public\*'
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- 'C:\Users\Default\*'
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- 'C:\Users\Desktop\*'
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selection2:
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EventID: 13
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TargetObject: '\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\*'
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Details:
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- 'C:\Windows\Temp\*'
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- '*\AppData\*'
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- 'C:\$Recycle.bin\*'
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- 'C:\Temp\*'
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- 'C:\Users\Public\*'
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- 'C:\Users\Default\*'
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- 'C:\Users\Desktop\*'
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condition: selection1 or selection2
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condition: selection
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fields:
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- Image
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falsepositives:
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