Query: detection rule: Detects PowerShell scripts attempting to disable scheduled scanning and other parts of Windows Defender ATP or set defau
Matching passage: Sigma rule: Detects PowerShell scripts attempting to disable scheduled scanning and other parts of Windows Defender ATP or set defau. Logsource: windows / ps_script. Rule: title: Tamper Windows Defender - ScriptBlockLogging id: 14c71865-6cd3-44ae-adaa-1db923fae5f2 related: - id: ec19ebab-72dc-40e1-9728-4c0b805d722c type: derived status: test description: Detects PowerShell scripts attempting to disable scheduled scanning and other parts of Windows Defender ATP or set default actions to allow. references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.001/T1562.001.md - https://learn.microsoft.com/en-us/powershell/module/defender/set-mppreference?view=windowsserver2022-ps - https://bidouillesecurity.com/disable-windows-defender-in-powershell/ author: frack113, elhoim, Tim Shelton (fps, alias support), Swachchhanda Shrawan Poudel, Nasreddine Bencherchali (Nextron Systems) date: 2022-01-16 modified: 2024-01-02 tags: - attack.defense-impairment - attack.t1685 logsource: product: windows category: ps_script definition: 'Requirements: Script Block Logging must be enabled' detection: selection_options_disabling_preference: ScriptBlockText|contains: Set-MpPreference selection_options_disabling_function: ScriptBlockText|contains: - -dbaf $true - -dbaf 1 - -dbm $true - -dbm 1 - -dips $true - -dips 1 - -DisableArchiveScanning $true - -DisableArchiveScanning 1 - -DisableBehaviorMonitoring $true - -DisableBehaviorMonitoring 1 - -DisableBlockAtFirstSeen $true - -DisableBlockAtFirstSeen 1 - -DisableCatchupFullScan $true - -DisableCatchupFullScan 1 - -DisableCatchupQuickScan $true - -DisableCatchupQuickScan 1 - -DisableIntrusionPreventionSystem $true - -DisableIntrusionPreventionSystem 1 - -DisableIOAVProtection $true - -DisableIOAVProtection 1 - -DisableRealtimeMonitoring $true - -DisableRealtimeMonitoring 1 - -DisableRemovableDriveScanning $true - -DisableRemovableDriveScanning 1 - -DisableScanningMappedNetworkDrivesForFullScan $true - -DisableScanningMappedNetworkDrivesForFullScan 1 - -DisableScanningNetworkFiles $true - -DisableScanningNetworkFiles 1 - -DisableScriptScanning $true - -DisableScriptScanning 1 - -MAPSReporting $false - -MAPSReporting 0 - -drdsc $true - -drdsc 1 - -drtm $true - -drtm 1 - -dscrptsc $true - -dscrptsc 1 - -dsmndf $true - -dsmndf 1 - -dsnf $true - -dsnf 1 - -dss $true - -dss 1 selection_other_default_actions_allow: ScriptBlockText|contains: Set-MpPreference selection_other_default_actions_func: ScriptBlockText|contains: - HighThreatDefaultAction Allow - htdefac Allow - LowThreatDefaultAction Allow - ltdefac Allow - ModerateThreatDefaultAction Allow -
Near-miss passage: Sigma rule: Detects process injection using the signed Windows tool "Mavinject" via the "INJECTRUNNING" flag. Logsource: windows / process_creation. Rule: title: Mavinject Inject DLL Into Running Process id: 4f73421b-5a0b-4bbf-a892-5a7fb99bea66 related: - id: 17eb8e57-9983-420d-ad8a-2c4976c22eb8 type: obsolete status: test description: Detects process injection using the signed Windows tool "Mavinject" via the "INJECTRUNNING" flag references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218/T1218.md - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1056.004/T1056.004.md - https://posts.specterops.io/mavinject-exe-functionality-deconstructed-c29ab2cf5c0e - https://twitter.com/gN3mes1s/status/941315826107510784 - https://reaqta.com/2017/12/mavinject-microsoft-injector/ - https://twitter.com/Hexacorn/status/776122138063409152 - https://github.com/SigmaHQ/sigma/issues/3742 - https://github.com/keyboardcrunch/SentinelOne-ATTACK-Queries/blob/6a228d23eefe963ca81f2d52f94b815f61ef5ee0/Tactics/DefenseEvasion.md#t1055-process-injection author: frack113, Florian Roth date: 2021-07-12 modified: 2022-12-05 tags: - attack.privilege-escalation - attack.stealth - attack.t1055.001 - attack.t1218.013 logsource: category: process_creation product: windows detection: selection: CommandLine|contains: ' /INJECTRUNNING ' filter: ParentImage: C:\Windows\System32\AppVClient.exe condition: selection and not filter falsepositives: - Unknown level: high