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Added detection testing service results inCertUtil Download With URLCache and Split Arguments

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2021-09-21 19:43:19 +00:00
parent 8cbb4e3c90
commit 4feb74f09a
1 changed files with 12 additions and 8 deletions
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detections/endpoint/certutil_download_with_urlcache_and_split_arguments.yml
+12 -8
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@@ -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