Description
This detection identifies exploitation attempts targeting CVE-2021-31728, which has a HIGH severity rating. Incorrect access control in zam64.sys, zam32.sys in MalwareFox AntiMalware 2.74.0.150 allows a non-privileged process to open a handle to \.\ZemanaAntiMalware, register itself with the driver by sending IOCTL 0x80002010, allocate executable memory using a flaw in IOCTL 0x80002040, install a hook with IOCTL 0x80002044 and execute the executable memory using this hook with IOCTL 0x80002014 or 0x80002018, this exposes ring 0 code execution in the context of the driver allowing the non-privileged process to elevate privileges.
Stats
- First seen
- June 2023
- Last seen
- October 2026
CVEs
Alert name variants
| Alert Name |
|---|
| Win64.Exploit.CVE-2021-31728 |