Query: detect Detects uncommon network connections to the Active Directory Web Services (ADWS) from processes not typically associated in logs
Matching passage: Sigma rule: Detects uncommon network connections to the Active Directory Web Services (ADWS) from processes not typically associated. Logsource: windows / network_connection. Rule: title: Uncommon Connection to Active Directory Web Services id: b3ad3c0f-c949-47a1-a30e-b0491ccae876 status: test description: 'Detects uncommon network connections to the Active Directory Web Services (ADWS) from processes not typically associated with ADWS management. ' references: - https://medium.com/falconforce/soaphound-tool-to-collect-active-directory-data-via-adws-165aca78288c - https://github.com/FalconForceTeam/FalconFriday/blob/a9219dfcfd89836f34660223f47d766982bdce46/Discovery/ADWS_Connection_from_Unexpected_Binary-Win.md author: '@kostastsale' date: 2024-01-26 tags: - attack.discovery - attack.t1087 logsource: category: network_connection product: windows detection: selection: Initiated: true DestinationPort: 9389 filter_main_dsac: Image: C:\Windows\system32\dsac.exe filter_main_ms_monitoring_agent: Image: C:\Program Files\Microsoft Monitoring Agent\ filter_main_powershell: Image|startswith: - C:\Program Files\PowerShell\7\pwsh.exe - C:\Program Files\PowerShell\7-preview\pwsh.ex - C:\Windows\System32\WindowsPowerShell\ - C:\Windows\SysWOW64\WindowsPowerShell\ condition: selection and not 1 of filter_main_* falsepositives: - ADWS is used by a number of legitimate applications that need to interact with Active Directory. These applications should be added to the allow-listing to avoid false positives. level: medium
Near-miss passage: Sigma rule: Detects attempts to disable Windows Credential Guard by deleting registry values. Credential Guard uses virtualization-b. Logsource: windows / registry_delete. Rule: title: Windows Credential Guard Related Registry Value Deleted - Registry id: d645ef86-2396-48a1-a2b6-b629ca3f57ff related: - id: c17d47b7-dcd6-4109-87eb-d1817bd4cbc9 type: similar status: experimental description: 'Detects attempts to disable Windows Credential Guard by deleting registry values. Credential Guard uses virtualization-based security to isolate secrets so that only privileged system software can access them. Adversaries may disable Credential Guard to gain access to sensitive credentials stored in the system, such as NTLM hashes and Kerberos tickets, which can be used for lateral movement and privilege escalation. ' references: - https://github.com/DambergC/SaveFolder/blob/90e945eba80fae85f2d54b4616e05a44ec90c500/Cygate%20Installation%20tool%206.22/Script/OSD/OSDeployment-CredentialGuardDisable.ps1#L50 - https://learn.microsoft.com/en-us/windows/security/identity-protection/credential-guard/configure author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-12-26 tags: - attack.defense-impairment - attack.t1685 logsource: category: registry_delete product: windows detection: selection: TargetObject|endswith: - \DeviceGuard\EnableVirtualizationBasedSecurity - \DeviceGuard\LsaCfgFlags - \DeviceGuard\RequirePlatformSecurityFeatures - \Lsa\LsaCfgFlags condition: selection falsepositives: - Unlikely level: high regression_tests_path: regression_data/rules/windows/registry/registry_delete/registry_delete_disable_credential_guard/info.yml