DNS trojan (?) named upperup.com

Do someone knows something about this virus? It disturbs my Google-searching and slow down the system. Please help me to get rid of it! ???
Brown

try to clean your pc by
1.run dr.web cure it scan
2.after that and rebooting a mbam scan
3.a scan by sas
4.any problems with policies in your system tell us we will help
5.after all clean your system by ccleaner
6.i wish that help

Hi karlake and superhacker,

Trojan.DNS_Changer
Threat Level: High

Description: Trojan.DNS Changer changes the DNS values of the TCP/IP settings, which in turn will redirect users to bad web sites.
Type: TT_Trojan
Also known as: Trojan-Downloader.Win32.Agent.tc Trojan.Win32.DNSChanger.aa [Kaspersky] DNSChanger.a [McAfee] Troj/DNSBust-C [Sophos] Trojan.Flush [Symantec] Win32/DNSChanger.V [NOD32v2] Trj/DNSChanger.Y [Panda]

MBAM is the preferred tool to remove this dangerous threat,

polonus

Hi!
Thank you, Superhacker and Polonus, for your good advice! I will try the different steps and hope
for the best.
Karlake