Malicious rootkit masquerading as legitimate CrowdStrike Falcon Sensor driver (CSAgent.sys). Signed with stolen/expired Chinese certificate from 2015. Detected by 61.6% of AV engines as Rootkit.Win64.Agent and Trojan:Win64/AVTamper. Used to establish kernel-level persistence while evading detection by impersonating trusted security software.
sc.exe create changsha binPath=C:\windows\temp\changsha.sys type=kernel && sc.exe start changsha sc.exe create changsha binPath=C:\windows\temp\changsha.sys type=kernel && sc.exe start changsha Sandbox: execFile · Timeout: 30s
security.privilegeescalation.kernel-exploit examples:
Malicious rootkit masquerading as legitimate CrowdStrike Falcon Sensor driver (CSAgent.sys). Signed with stolen/expired Chinese certificate from 2015. Detected by 61.6% of AV engines as Rootkit.Win64.Agent and Trojan:Win64/AVTamper. Used to establish kernel-level persistence while evading detection by impersonating trusted security software.
Use Case: Elevate privileges
Required Privileges: kernel
MITRE ATT&CK: T1068