frack113
59 lines
2.7 KiB
YAML
59 lines
2.7 KiB
YAML
title: New TaskCache Entry
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id: 4720b7df-40c3-48fd-bbdf-fd4b3c464f0d
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description: Monitor the creation of a new key under 'TaskCache' when a new scheduled task is registered
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status: experimental
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tags:
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- attack.persistence
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- attack.t1053
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- attack.t1053.005
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date: 2021/06/18
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modified: 2022/03/03
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references:
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- https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/
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author: Syed Hasan (@syedhasan009)
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logsource:
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category: registry_event
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product: windows
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detection:
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selection:
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EventType: SetValue
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TargetObject|contains: 'SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\'
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filter:
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TargetObject|contains:
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- 'Microsoft\Windows\UpdateOrchestrator'
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- 'Microsoft\Windows\SoftwareProtectionPlatform\SvcRestartTask\Index'
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- 'Microsoft\Windows\Flighting\OneSettings\RefreshCache\Index'
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filter_svchost:
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Image: 'C:\WINDOWS\system32\svchost.exe'
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TargetObject|contains:
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- 'Microsoft\Windows\WindowsUpdate\Scheduled Start\Index'
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- 'Microsoft\Windows\PushToInstall\Registration\Index'
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- 'Microsoft\Windows\GroupPolicy\{*}\Index'
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- '\TaskCache\Tree\Opera scheduled Autoupdate'
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- '\TaskCache\Tree\Opera scheduled assistant Autoupdate'
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- '\TaskCache\Tree\OneDrive Reporting'
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- '\TaskCache\Tree\OneDrive Standalone Update Task'
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- '\TaskCache\Tree\Mozilla\SD'
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- '\TaskCache\Tree\Microsoft\Windows\.NET Framework\.NET Framework '
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- '\TaskCache\Tree\Microsoft\Office\OfficeOsfInstaller\'
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- '\TaskCache\Tree\Microsoft\Office\OfficeBackgroundTaskHandler' # *Logon and *Registration
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- '\TaskCache\Tree\GoogleUpdateTaskMachine' # *Core and *UA
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- '\TaskCache\Tree\DropboxUpdateTaskMachine' # *Core and *UA
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- '\TaskCache\Tree\Mozilla\Firefox Default Browser Agent '
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- '\TaskCache\Tree\Mozilla\Firefox Background Update '
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- '\TaskCache\Tree\Microsoft\Windows\WOF\WIM-Hash-Validation\Index'
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- '\TaskCache\Tree\Microsoft\Office\SD'
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- '\TaskCache\Tree\Microsoft\Office\OfficeTelemetry' # *AgentLogOn and *AgentFallBack
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- '\TaskCache\Tree\Microsoft\Office\Office ClickToRun Service Monitor\'
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- '\TaskCache\Tree\Microsoft\Office\Office Automatic Updates 2.0\'
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- '\TaskCache\Tree\klcp_update\'
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- '\TaskCache\Tree\Apple\SD'
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- '\TaskCache\Tree\Apple\AppleSoftwareUpdate\'
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- '\TaskCache\Tree\Microsoft\Windows\Windows Defender\Windows Defender Verification\'
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- '\TaskCache\Tree\Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance\'
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- '\TaskCache\Tree\Microsoft\Windows\Windows Defender\Windows Defender Cleanup\'
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- '\TaskCache\Tree\Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan\'
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condition: selection and not 1 of filter*
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falsepositives:
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- Unknown
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level: medium |