11/11: Masteq-H Trojan Runs Silently
November 11, 2004

Troj/Mastseq-H is a backdoor Trojan that runs continuously in the background providing various services to a remote intruder. Troj/Mastseq-H injects its code into a new instance of Microsoft Internet Explorer, in order to be less obvious in the process list and to possibly gain trusted application status.

More information can be found at Sophos page.