Backdoor.Turkojan: Backdoor.Turkojan provides a remote attacker unauthorized access to an infected machine. It can steal passwords, log keystrokes, create screenshots, and control the infected system.
Rootkit.Agent: Rootkit.Agent is a trojan that hijack browser in order to produce popup advertisements from known badsites and also have rootkit functionality in order to hide itself as system driver.
Delete the following files to rid yourself of this beast, also, get a good AntiVirus and spyware remover to kill it off.
Files created upon execution:
%Windir%\ntdt c stp.dll --No Spaces, Dumb Filter