Malicious Qilin EDR Killer BYOVD Driver Load
- Product
- windows
- Category
- driver_load
- Author
- HuntRule
- Published
- 2026-09-09
- Updated
- 2026-09-09
ATT&CK techniques
Priv EscRecon
Resource Dev
Initial Access
Execution
Persistence
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects loading of the vulnerable drivers rwdrv.sys or hlpdrv.sys used by the Qilin EDR killer as a bring-your-own-vulnerable-driver toolkit. The rwdrv.sys component is a renamed ThrottleStop driver abused alongside hlpdrv.sys to gain kernel access for terminating protected security processes. Loading either driver indicates an attempt to disable endpoint defenses ahead of ransomware deployment.
Reporting behind it
- blog.talosintelligence.comhttps://blog.talosintelligence.com/qilin-edr-killer/
- attack.mitre.orghttps://attack.mitre.org/techniques/T1068/
- attack.mitre.orghttps://attack.mitre.org/techniques/T1562/001/
- huntress.comhttps://www.huntress.com/blog/exploitation-of-sonicwall-vpn
- attack.mitre.orghttps://attack.mitre.org/techniques/T1562.001/
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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