Malware
POORTRY
According to Mandiant, POORTRY is a malware written as a driver, signed with a Microsoft Windows Hardware Compatibility Authenticode signature.
POORTRY is a Windows malware family.
Background
Mandiant reports that POORTRY takes the form of a malicious driver bearing a Microsoft Windows Hardware Compatibility Authenticode signature. The malware has been seen in use by UNC3944.
Source: Malpedia (Fraunhofer FKIE).