SigmaHQ/rules/windows/builtin/win_sam_registry_hive_handle_request.yml

title: SAM Registry Hive Handle Request
id: f8748f2c-89dc-4d95-afb0-5a2dfdbad332
description: Detects handles requested to SAM registry hive
status: experimental
date: 2019/08/12
modified: 2020/08/23
author: Roberto Rodriguez @Cyb3rWard0g
references:
    - https://threathunterplaybook.com/notebooks/windows/07_discovery/WIN-190725024610.html
tags:
    - attack.discovery
    - attack.t1012
    - attack.credential_access
    - attack.t1552.002
logsource:
    product: windows
    service: security
detection:
    selection: 
        EventID: 4656
        ObjectType: 'Key'
        ObjectName|endswith: '\SAM'
    condition: selection
fields:
    - ComputerName
    - SubjectDomainName
    - SubjectUserName
    - ProcessName
    - ObjectName
falsepositives:
    - Unknown
level: critical
Removed ATT&CK technique ids from titles and added tags 2020-01-10 23:33:50 +00:00			`title: SAM Registry Hive Handle Request`
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: f8748f2c-89dc-4d95-afb0-5a2dfdbad332`
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 handles requested to SAM registry hive`
			`status: experimental`
			`date: 2019/08/12`
att&ck tags review: windows/builtin, windows/driver_load, windows/file_event, windows/image_load, windows/other 2020-08-24 23:09:17 +00:00			`modified: 2020/08/23`
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			`author: Roberto Rodriguez @Cyb3rWard0g`
			`references:`
Update Threat Hunter Playbook Reference 2021-05-22 03:59:04 +00:00			`- https://threathunterplaybook.com/notebooks/windows/07_discovery/WIN-190725024610.html`
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			`tags:`
			`- attack.discovery`
			`- attack.t1012`
att&ck tags review: windows/builtin, windows/driver_load, windows/file_event, windows/image_load, windows/other 2020-08-24 23:09:17 +00:00			`- attack.credential_access`
			`- attack.t1552.002`
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			`logsource:`
			`product: windows`
			`service: security`
			`detection:`
			`selection:`
			`EventID: 4656`
			`ObjectType: 'Key'`
			`ObjectName\|endswith: '\SAM'`
			`condition: selection`
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`
			`- ProcessName`
			`- ObjectName`
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`