- Type: TTP
- Product: Splunk Behavioral Analytics
- Datamodel: Endpoint_Processes
- Last Updated: 2022-02-23
- Author: Michael Haag, Splunk
- ID: 24962154-9524-11ec-9333-acde48001122
|T1218||Signed Binary Proxy Execution||Defense Evasion|
The SPL above uses the following Macros:
windows_mshta_inline_hta_execution_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
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
Although unlikely, some legitimate applications may exhibit this behavior, triggering a false positive.
Associated Analytic story
Kill Chain Phase
|80.0||80||100||An instance of $parent_process_name$ spawning $process_name$ was identified on endpoint $dest_device_id$ by user $dest_user_id$ executing with inline HTA, indicative of defense evasion.|
Note that risk score is calculated base on the following formula:
(Impact * Confidence)/100
source | version: 1