Financial terms of the deal have not been made public. Framingham, Massachusetts-based Process said it will sell Tenebril’s software as part of its portfolio of enterprise security products and services.

Spyware refers to a broad category of malicious software that is coded to intercept or take partial control of a computer’s operation without the user’s consent.

The term suggests that it sneakily monitors online users. But it really refers to software like that subverts a computer’s operation for the benefit of a hacker or third party.

Privately held Tenebril is best known for its SpyCatcher label that uses a patent pending profiling technology to detect more advanced forms of spyware called evasive threats. This includes hyper mutating and customer-coded spyware.

Founded in 1984 Process’ product portfolio has grown to include a suite of TCP/IP applications for Hewlett-Packard Alpha, VAX and Integrity systems running on Open VMS. It also develops a high-performance messaging suite and anti-spam Internet gateways for email and Web-based collaboration. The company has roughly 3,000 customers worldwide.

In October 2005 Process was acquired by Halo, which acts as a holding company for a diversified range of enterprise software applications.