LoFP LoFP / false positives should be limited.

Techniques

Sample rules

XMRIG Driver Loaded

Description

The following analytic detects the installation of the XMRIG coinminer driver on a system. It identifies the loading of the WinRing0x64.sys driver, commonly associated with XMRIG, by analyzing Sysmon EventCode 6 logs for specific signatures and image loads. This activity is significant because XMRIG is an open-source CPU miner frequently exploited by adversaries to mine cryptocurrency illicitly. If confirmed malicious, this activity could lead to unauthorized resource consumption, degraded system performance, and potential financial loss due to unauthorized cryptocurrency mining.

Detection logic

`sysmon` EventCode=6 Signature="Noriyuki MIYAZAKI" OR ImageLoaded= "*\\WinRing0x64.sys" 
|  stats  min(_time) as firstTime max(_time) as lastTime count by  dest ImageLoaded Hashes IMPHASH Signature Signed 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)` 
| `xmrig_driver_loaded_filter`