splApache-2.0from splunk/security_content

Runas Execution in CommandLine

The following analytic detects the execution of the runas.exe process with administrator user options. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on command-line executions and process details. This activity is significant as it may indicate an attempt to gain elevated privileges, a common tactic in privilege escalation and lateral movement. If confirmed malicious, this could allow an attacker to execute commands with higher privileges, potentially leading to unauthorized access, data exfiltration, or further compromise of the target host.

Quality

FP risk

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Rule sourcedetections/endpoint/runas_execution_in_commandline.yml

| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
as lastTime from datamodel=Endpoint.Processes where
(Processes.process_name="runas.exe" OR Processes.original_file_name="runas.exe")
Processes.process ="*/user:*"
Processes.process = "*admin*"
by Processes.action Processes.dest
   Processes.original_file_name Processes.parent_process Processes.parent_process_exec
   Processes.parent_process_guid Processes.parent_process_id Processes.parent_process_name
   Processes.parent_process_path Processes.process Processes.process_exec Processes.process_guid
   Processes.process_hash Processes.process_id Processes.process_integrity_level Processes.process_name
   Processes.process_path Processes.user Processes.user_id Processes.vendor_product
| `drop_dm_object_name(Processes)`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `runas_execution_in_commandline_filter`