poisonx9.sys

PoisonX variant

From Microsoft (legitimately signed)

Part of the PoisonX family

Status

On a known-vulnerable list

Known variants

1 distinct hashes

Field notes

poisonx9.sys is a variant of PoisonX. See the poisonx.sys entry for the full story.

Not a legitimate utility driver. Presence indicates active or recent compromise.

What the record shows

poisonx9.sys is listed as a known-vulnerable driver on the public LOLDrivers project. One distinct binary hash matching this filename is on record.

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 PoisonX family. See the whole family →

poisonx.sys poisonx10.sys poisonx11.sys poisonx12.sys poisonx13.sys poisonx14.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. “poisonx9.sys.” Vera Field Guide (Driver). The Vera Project. https://www.veraproject.xyz/field-guide/drivers/poisonx9-sys