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Description

This analytic identifies XMRIG coinminer driver installation on the system. The XMRIG driver name by default is WinRing0x64.sys. This cpu miner is an open source project that is commonly abused by adversaries to infect and mine bitcoin.

  • Type: TTP
  • Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
  • Datamodel: Endpoint
  • Last Updated: 2021-04-29
  • Author: Teoderick Contreras, Splunk
  • ID: 90080fa6-a8df-11eb-91e4-acde48001122

Annotations

ATT&CK
ID Technique Tactic
T1543.003 Windows Service Persistence, Privilege Escalation
T1543 Create or Modify System Process Persistence, Privilege Escalation
Kill Chain Phase
  • Exploitation
NIST
CIS20
CVE
1
2
3
4
5
`sysmon` EventCode=6 Signature="Noriyuki MIYAZAKI" OR ImageLoaded= "*\\WinRing0x64.sys" 
|  stats  min(_time) as firstTime max(_time) as lastTime count by  Computer ImageLoaded Hashes IMPHASH Signature Signed 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)` 
| `xmrig_driver_loaded_filter`

Macros

The SPL above uses the following Macros:

Note that xmrig_driver_loaded_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.

Required field

  • _time
  • Computer
  • ImageLoaded
  • Hashes
  • IMPHASH
  • Signature
  • Signed

How To Implement

To successfully implement this search, you need to be ingesting logs with the driver loaded and Signature from your endpoints. If you are using Sysmon, you must have at least version 6.0.4 of the Sysmon TA.

Known False Positives

False positives should be limited.

Associated Analytic story

RBA

Risk Score Impact Confidence Message
80.0 80 100 A driver $ImageLoaded$ related to xmrig crytominer loaded in host $Computer$

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

source | version: 1