diff --git a/detections/endpoint/prevent_automatic_repair_mode_using_bcdedit.yml b/detections/endpoint/prevent_automatic_repair_mode_using_bcdedit.yml deleted file mode 100644 index 3be63fdfc7..0000000000 --- a/detections/endpoint/prevent_automatic_repair_mode_using_bcdedit.yml +++ /dev/null @@ -1,45 +0,0 @@ -name: Prevent Automatic Repair Mode using Bcdedit -id: 7742aa92-c9d9-11eb-bbfc-acde48001122 -version: 1 -date: '2021-06-10' -author: Teoderick Contreras, Splunk -type: batch -datamodel: -- Endpoint -description: This search is to detect a suspicious bcdedit.exe execution to ignore all failures. - This technique was used by ransomware to prevent the compromise machine automatically boot in repair mode. -search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes - where Processes.process_name = "bcdedit.exe" Processes.process = "*bootstatuspolicy*" Processes.process = "*ignoreallfailures*" - by Processes.parent_process_name Processes.parent_process Processes.process_name Processes.process Processes.dest Processes.user Processes.process_id Processes.process_guid - | `drop_dm_object_name(Processes)` - | `security_content_ctime(firstTime)` - | `security_content_ctime(lastTime)`| `prevent_automatic_repair_mode_using_bcdedit_filter`' -how_to_implement: To successfully implement this search, you need to be ingesting - logs with the process name, parent process, and command-line executions from your - endpoints. If you are using Sysmon, you must have at least version 6.0.4 of the - Sysmon TA. Tune and filter known instances where renamed bcdedit.exe may be used. -known_false_positives: Administrators may modify the boot configuration ignore failure during testing and debugging. -references: -- https://jsac.jpcert.or.jp/archive/2020/pdf/JSAC2020_1_tamada-yamazaki-nakatsuru_en.pdf -tags: - analytic_story: - - Ransomware - kill_chain_phases: - - Exploitation - mitre_attack_id: - - T1490 - product: - - Splunk Enterprise - - Splunk Enterprise Security - - Splunk Cloud - required_fields: - - _time - - Processes.parent_process_name - - Processes.parent_process - - Processes.process_name - - Processes.process - - Processes.dest - - Processes.user - - Processes.process_id - - Processes.process_guid - security_domain: endpoint \ No newline at end of file