diff --git a/detections/endpoint/certutil_download_with_urlcache_and_split_arguments.yml b/detections/endpoint/certutil_download_with_urlcache_and_split_arguments.yml index 9345297797..af05ba2894 100644 --- a/detections/endpoint/certutil_download_with_urlcache_and_split_arguments.yml +++ b/detections/endpoint/certutil_download_with_urlcache_and_split_arguments.yml @@ -14,12 +14,16 @@ description: Certutil.exe may download a file from a remote destination using `- During triage, capture any files on disk and review. Review the reputation of the remote IP or domain in question. search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) - as lastTime from datamodel=Endpoint.Processes where `process_certutil` - Processes.process=*urlcache* Processes.process=*split* by Processes.dest Processes.user - Processes.parent_process Processes.process_name Processes.process Processes.process_id Processes.original_file_name + as lastTime from datamodel=Endpoint.Processes where `process_certutil` Processes.process=*urlcache* + Processes.process=*split* by Processes.dest Processes.user Processes.parent_process + Processes.process_name Processes.process Processes.process_id Processes.original_file_name Processes.parent_process_id | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `certutil_download_with_urlcache_and_split_arguments_filter`' -how_to_implement: To successfully implement this search you need to be ingesting information on process that include the name of the process responsible for the changes from your endpoints into the `Endpoint` datamodel in the `Processes` node. In addition, confirm the latest CIM App 4.20 or higher is installed and the latest TA for the endpoint product. +how_to_implement: To successfully implement this search you need to be ingesting information + on process that include the name of the process responsible for the changes from + your endpoints into the `Endpoint` datamodel in the `Processes` node. In addition, + confirm the latest CIM App 4.20 or higher is installed and the latest TA for the + endpoint product. known_false_positives: Limited false positives in most environments, however tune as needed based on parent-child relationship or network connection. references: @@ -69,11 +73,11 @@ tags: - _time - Processes.dest - Processes.user - - Processes.parent_process_name #parent process name - - Processes.parent_process #parent cmdline + - Processes.parent_process_name + - Processes.parent_process - Processes.original_file_name - - Processes.process_name #process name - - Processes.process #process cmdline + - Processes.process_name + - Processes.process - Processes.process_id - Processes.parent_process_path - Processes.process_path