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Description

This search detects registry key license at host where Remcos RAT agent is installed.

  • Type: TTP
  • Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
  • Datamodel: Endpoint
  • Last Updated: 2021-09-24
  • Author: Bhavin Patel, Rod Soto, Splunk
  • ID: f2a1615a-1d63-11ec-97d2-acde48001122

ATT&CK

ID Technique Tactic
T1112 Modify Registry Defense Evasion

| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime values(Registry.registry_path) as  registry_path FROM datamodel=Endpoint.Registry where (Registry.registry_key_name=*\\Software\\Remcos*) by Registry.dest  Registry.user Registry.registry_key_name Registry.process_id
| `drop_dm_object_name(Registry)` 
| `security_content_ctime(lastTime)` 
| `security_content_ctime(firstTime)`
|`remcos_client_registry_install_entry_filter`

Associated Analytic Story

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 Registry node. Also make sure that this registry was included in your config files ex. sysmon config to be monitored.

Required field

  • _time
  • Registry.registry_path
  • Registry.registry_key_name
  • Registry.process_id
  • Registry.dest
  • Registry.user

Kill Chain Phase

  • Exploitation

Known False Positives

unknown

RBA

Risk Score Impact Confidence Message
90.0 90 100 A registry entry $registry_path$ with registry keyname $registry_key_name$ related to Remcos RAT in host $dest$

Reference

Test Dataset

Replay any dataset to Splunk Enterprise by using our replay.py tool or the UI. Alternatively you can replay a dataset into a Splunk Attack Range

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