Suspicious Vulnerable ASUS AsIO3.sys Driver Load

ATT&CK techniques

Priv Esc → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1068Exploitation for Privilege Escalation
Defense Evasion
- T1211Exploitation for Stealth
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects loading of the ASUS AsIO3.sys kernel driver, a vulnerable driver abused in this bring-your-own-vulnerable-driver technique. The driver exposes IOCTLs that grant arbitrary kernel memory access, which the actor leverages for privilege escalation and to bypass process allowlisting, so its load outside a genuine ASUS software context is a strong exploitation indicator.

Reporting behind it

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Suspicious Vulnerable ASUS AsIO3.sys Driver Load

Pivot detection · T1068 · 9 related

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