msio64.sys

MSI utility driver (NTIOLib successor)

From Micro-Star International (MSI)

Part of the MSI family

Status

On a known-vulnerable list

Known variants

6 distinct hashes

Field notes

MsIO64.sys is a more recent MSI hardware-access driver, a successor in lineage to NTIOLib.sys used by MSI's monitoring and tuning utilities. It is on the LOLDrivers list for the same reason as its predecessors: a broad IOCTL surface that exposes hardware access to user-mode callers.

Common on systems with MSI motherboards running MSI Center or older MSI utilities. Updating MSI Center to the current release replaces the older driver.

What the record shows

msio64.sys is listed as a known-vulnerable driver on the public LOLDrivers project. 6 distinct binary hashes matching this filename are on record, meaning multiple versions of the file have been observed.

What this means, plainly

Presence is not proof of misuse. Driver files on the LOLDrivers list commonly ship with legitimate hardware tools, gaming software, or vendor utilities. Their presence is recorded as evidence on a record. It is never treated as a verdict about a person.

Related drivers

Other drivers in the MSI family. See the whole family →

ntiolib.sys rtcore64.sys msio32.sys

Source

Status data comes from the public LOLDrivers project, a community-curated registry of drivers known to be vulnerable or malicious. The snapshot Vera uses was refreshed July 10, 2026. CVE links go to the NIST National Vulnerability Database.

In plain words

Kernel driver BYOVD Ring 0 Code-signing certificate Certificate revocation The full glossary →

Cite this entry

Vera Project. “msio64.sys.” Vera Field Guide (Driver). The Vera Project. https://www.veraproject.xyz/field-guide/drivers/msio64-sys