diff --git a/detections/endpoint/detect_remote_access_software_usage_file.yml b/detections/endpoint/detect_remote_access_software_usage_file.yml index bed6c42094..10e76ff991 100644 --- a/detections/endpoint/detect_remote_access_software_usage_file.yml +++ b/detections/endpoint/detect_remote_access_software_usage_file.yml @@ -1,7 +1,7 @@ name: Detect Remote Access Software Usage File id: 3bf5541a-6a45-4fdc-b01d-59b899fff961 -version: 2 -date: '2024-05-13' +version: 3 +date: '2024-07-09' author: Steven Dick status: production type: Anomaly @@ -20,7 +20,8 @@ search: '| tstats `security_content_summariesonly` count, min(_time) as firstTim by Filesystem.dest, Filesystem.user, Filesystem.file_name | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `drop_dm_object_name(Filesystem)` | lookup remote_access_software remote_utility AS file_name OUTPUT isutility, description - as signature, comment_reference as desc, category | search isutility = TRUE | `detect_remote_access_software_usage_file_filter`' + as signature, comment_reference as desc, category | search isutility = TRUE + | `remote_access_software_usage_exception_filter` | `detect_remote_access_software_usage_file_filter`' how_to_implement: The detection is based on data that originates from Endpoint Detection and Response (EDR) agents. These agents are designed to provide security-related telemetry from the endpoints where the agent is installed. To implement this search, @@ -28,9 +29,11 @@ how_to_implement: The detection is based on data that originates from Endpoint D the file. These logs must be processed using the appropriate Splunk Technology Add-ons that are specific to the EDR product. The logs must also be mapped to the `Filesystem` node of the `Endpoint` data model. Use the Splunk Common Information Model (CIM) - to normalize the field names and speed up the data modeling process. + to normalize the field names and speed up the data modeling process. known_false_positives: Known or approved applications used by the organization or - usage of built-in functions. + usage of built-in functions. Known false positives can be added to the + remote_access_software_usage_exception.csv lookup to globally suppress these + situations across all remote access content references: - https://attack.mitre.org/techniques/T1219/ - https://thedfirreport.com/2022/08/08/bumblebee-roasts-its-way-to-domain-admin/