SigmaHQ/rules/windows/builtin/win_ad_replication_non_machine_account.yml

title: T1003 Active Directory Replication from Non Machine Account
id: 17d619c1-e020-4347-957e-1d1207455c93
description: Detects potential abuse of Active Directory Replication Service (ADRS) from a non machine account to request credentials.
status: experimental
date: 2019/07/26
modified: 2019/11/10
author: Roberto Rodriguez @Cyb3rWard0g
references:
    - https://github.com/Cyb3rWard0g/ThreatHunter-Playbook/tree/master/playbooks/windows/06_credential_access/T1003_credential_dumping/ad_replication_non_machine_account.md
tags:
    - attack.credential_access
    - attack.t1003
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4662
        AccessMask: '0x100'
        Properties|contains:
            - '1131f6aa-9c07-11d1-f79f-00c04fc2dcd2'
            - '1131f6ad-9c07-11d1-f79f-00c04fc2dcd2'
            - '89e95b76-444d-4c62-991a-0facbeda640c'
    filter:
        SubjectUserName|endswith: '$'
    condition: selection and not filter
fields:
    - ComputerName
    - SubjectDomainName
    - SubjectUserName
falsepositives:
    - Unknown
level: critical
oscd task #6 done. add 25 new rules: - win_ad_replication_non_machine_account.yml - win_dpapi_domain_backupkey_extraction.yml - win_protected_storage_service_access.yml - win_dpapi_domain_masterkey_backup_attempt.yml - win_sam_registry_hive_handle_request.yml - win_sam_registry_hive_dump_via_reg_utility.yml - win_lsass_access_non_system_account.yml - win_ad_object_writedac_access.yml - powershell_alternate_powershell_hosts.yml - sysmon_remote_powershell_session_network.yml - win_remote_powershell_session.yml - win_scm_database_handle_failure.yml - win_scm_database_privileged_operation.yml - sysmon_wmi_module_load.yml - sysmon_remote_powershell_session_process.yml - sysmon_rdp_registry_modification.yml - sysmon_powershell_execution_pipe.yml - sysmon_alternate_powershell_hosts_pipe.yml - sysmon_powershell_execution_moduleload.yml - sysmon_createremotethread_loadlibrary.yml - sysmon_alternate_powershell_hosts_moduleload.yml - powershell_remote_powershell_session.yml - win_non_interactive_powershell.yml - win_syskey_registry_access.yml - win_wmiprvse_spawning_process.yml improve 1 rule: - rules/windows/builtin/win_account_backdoor_dcsync_rights.yml 2019-11-10 15:43:41 +00:00			`title: T1003 Active Directory Replication from Non Machine Account`
UUIDs + moved unsupported logic * Added UUIDs to all contributed rules * Moved unsupported logic directory out of rules/ because this breaks CI testing. 2019-12-19 22:56:36 +00:00			`id: 17d619c1-e020-4347-957e-1d1207455c93`
oscd task #6 done. add 25 new rules: - win_ad_replication_non_machine_account.yml - win_dpapi_domain_backupkey_extraction.yml - win_protected_storage_service_access.yml - win_dpapi_domain_masterkey_backup_attempt.yml - win_sam_registry_hive_handle_request.yml - win_sam_registry_hive_dump_via_reg_utility.yml - win_lsass_access_non_system_account.yml - win_ad_object_writedac_access.yml - powershell_alternate_powershell_hosts.yml - sysmon_remote_powershell_session_network.yml - win_remote_powershell_session.yml - win_scm_database_handle_failure.yml - win_scm_database_privileged_operation.yml - sysmon_wmi_module_load.yml - sysmon_remote_powershell_session_process.yml - sysmon_rdp_registry_modification.yml - sysmon_powershell_execution_pipe.yml - sysmon_alternate_powershell_hosts_pipe.yml - sysmon_powershell_execution_moduleload.yml - sysmon_createremotethread_loadlibrary.yml - sysmon_alternate_powershell_hosts_moduleload.yml - powershell_remote_powershell_session.yml - win_non_interactive_powershell.yml - win_syskey_registry_access.yml - win_wmiprvse_spawning_process.yml improve 1 rule: - rules/windows/builtin/win_account_backdoor_dcsync_rights.yml 2019-11-10 15:43:41 +00:00			`description: Detects potential abuse of Active Directory Replication Service (ADRS) from a non machine account to request credentials.`
			`status: experimental`
			`date: 2019/07/26`
			`modified: 2019/11/10`
			`author: Roberto Rodriguez @Cyb3rWard0g`
			`references:`
			`- https://github.com/Cyb3rWard0g/ThreatHunter-Playbook/tree/master/playbooks/windows/06_credential_access/T1003_credential_dumping/ad_replication_non_machine_account.md`
			`tags:`
			`- attack.credential_access`
			`- attack.t1003`
			`logsource:`
			`product: windows`
			`service: security`
			`detection:`
			`selection:`
			`EventID: 4662`
			`AccessMask: '0x100'`
			`Properties\|contains:`
			`- '1131f6aa-9c07-11d1-f79f-00c04fc2dcd2'`
			`- '1131f6ad-9c07-11d1-f79f-00c04fc2dcd2'`
			`- '89e95b76-444d-4c62-991a-0facbeda640c'`
			`filter:`
			`SubjectUserName\|endswith: '$'`
			`condition: selection and not filter`
OSCD QA wave 1 * Checked all rules against Mordor and EVTX samples datasets * Added field names * Some severity adjustments * Fixes 2020-01-10 23:11:27 +00:00			`fields:`
			`- ComputerName`
			`- SubjectDomainName`
			`- SubjectUserName`
oscd task #6 done. add 25 new rules: - win_ad_replication_non_machine_account.yml - win_dpapi_domain_backupkey_extraction.yml - win_protected_storage_service_access.yml - win_dpapi_domain_masterkey_backup_attempt.yml - win_sam_registry_hive_handle_request.yml - win_sam_registry_hive_dump_via_reg_utility.yml - win_lsass_access_non_system_account.yml - win_ad_object_writedac_access.yml - powershell_alternate_powershell_hosts.yml - sysmon_remote_powershell_session_network.yml - win_remote_powershell_session.yml - win_scm_database_handle_failure.yml - win_scm_database_privileged_operation.yml - sysmon_wmi_module_load.yml - sysmon_remote_powershell_session_process.yml - sysmon_rdp_registry_modification.yml - sysmon_powershell_execution_pipe.yml - sysmon_alternate_powershell_hosts_pipe.yml - sysmon_powershell_execution_moduleload.yml - sysmon_createremotethread_loadlibrary.yml - sysmon_alternate_powershell_hosts_moduleload.yml - powershell_remote_powershell_session.yml - win_non_interactive_powershell.yml - win_syskey_registry_access.yml - win_wmiprvse_spawning_process.yml improve 1 rule: - rules/windows/builtin/win_account_backdoor_dcsync_rights.yml 2019-11-10 15:43:41 +00:00			`falsepositives:`
			`- Unknown`
OSCD QA wave 1 * Checked all rules against Mordor and EVTX samples datasets * Added field names * Some severity adjustments * Fixes 2020-01-10 23:11:27 +00:00			`level: critical`