This is what someone post or i found some place
You have CoolWebSearch on your computer.
Download CWShredder Click on update, then close all browsers, and
then click on Fix.
Next, download Spybot S&D Check for Updates first,
download ALL Updates and Do a Scan. When finished, make
sure ALL RED items have been ticked, and click the
"Fix Selected Problems" Button.
Reboot the computer.
Run a fresh HJT log and post here.
Please download this
http://tools.zerosrealm.com/startchmfix.exe
Download it. Run it and extract the folder to the
desktop preferably.
Open the folder after extracted.
Please make sure all Internet Explorers are closed.
Double click the fix.bat
Only run it once or you will lose the backups although they
shouldn't be needed.
Notepad may open at the end with a message and the bad file
listing at the end. Please post that bad file listing line
here if it shows.