Query: detection rule: Detects suspicious addition to BitLocker related registry keys via the reg.exe utility
Matching passage: Sigma rule: Detects suspicious addition to BitLocker related registry keys via the reg.exe utility. Logsource: windows / process_creation. Rule: title: Suspicious Reg Add BitLocker id: 0e0255bf-2548-47b8-9582-c0955c9283f5 status: test description: Detects suspicious addition to BitLocker related registry keys via the reg.exe utility references: - https://thedfirreport.com/2021/11/15/exchange-exploit-leads-to-domain-wide-ransomware/ author: frack113 date: 2021-11-15 modified: 2022-09-09 tags: - attack.impact - attack.t1486 logsource: category: process_creation product: windows detection: selection: CommandLine|contains|all: - REG - ADD - \SOFTWARE\Policies\Microsoft\FVE - /v - /f CommandLine|contains: - EnableBDEWithNoTPM - UseAdvancedStartup - UseTPM - UseTPMKey - UseTPMKeyPIN - RecoveryKeyMessageSource - UseTPMPIN - RecoveryKeyMessage condition: selection falsepositives: - Unlikely level: high
Near-miss passage: Sigma rule: Detects the modification of the registry to allow a driver or service to persist in Safe Mode.. Logsource: windows / registry_set. Rule: title: Registry Persistence via Service in Safe Mode id: 1547e27c-3974-43e2-a7d7-7f484fb928ec status: test description: Detects the modification of the registry to allow a driver or service to persist in Safe Mode. references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1112/T1112.md#atomic-test-33---windows-add-registry-value-to-load-service-in-safe-mode-without-network - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1112/T1112.md#atomic-test-34---windows-add-registry-value-to-load-service-in-safe-mode-with-network author: frack113 date: 2022-04-04 modified: 2025-10-22 tags: - attack.stealth - attack.t1564.001 logsource: category: registry_set product: windows detection: selection: TargetObject|contains: - \Control\SafeBoot\Minimal\ - \Control\SafeBoot\Network\ TargetObject|endswith: \(Default) Details: Service filter_optional_sophos: Image: C:\WINDOWS\system32\msiexec.exe TargetObject|endswith: - \Control\SafeBoot\Minimal\SAVService\(Default) - \Control\SafeBoot\Network\SAVService\(Default) filter_optional_mbamservice: Image|endswith: \MBAMInstallerService.exe TargetObject|endswith: \MBAMService\(Default) Details: Service filter_optional_hexnode: Image: C:\Hexnode\Hexnode Agent\Current\HexnodeAgent.exe TargetObject|endswith: - \Control\SafeBoot\Minimal\Hexnode Updater\(Default) - \Control\SafeBoot\Network\Hexnode Updater\(Default) - \Control\SafeBoot\Minimal\Hexnode Agent\(Default) - \Control\SafeBoot\Network\Hexnode Agent\(Default) Details: Service condition: selection and not 1 of filter_optional_* falsepositives: - Unknown level: high regression_tests_path: regression_data/rules/windows/registry/registry_set/registry_set_add_load_service_in_safe_mode/info.yml simulation: - type: atomic-red-team name: Windows Add Registry Value to Load Service in Safe Mode without Network technique: T1112 atomic_guid: 1dd59fb3-1cb3-4828-805d-cf80b4c3bbb5 - type: atomic-red-team name: Windows Add Registry Value to Load Service in Safe Mode with Network technique: T1112 atomic_guid: c173c948-65e5-499c-afbe-433722ed5bd4