Do a FULL scan with an updated Antivirus program.
Then reboot in Safe Mode and run HJT standalone and let it fix:
C:\WINDOWS\system32\srvany.exe
C:\WINDOWS\system32\resetservice.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar =
http://uk.red.clientapps.yahoo.com/...b/*http://uk.docs.yahoo.com/info/bt_side.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page =
http://uk.red.clientapps.yahoo.com/customize/btyahoo/defaults/sp/*http://uk.search.yahoo.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.google.co.uk
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
http://uk.red.clientapps.yahoo.com/customize/btyahoo/defaults/su/*http://uk.search.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar =
http://uk.red.clientapps.yahoo.com/...b/*http://uk.docs.yahoo.com/info/bt_side.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
http://uk.red.clientapps.yahoo.com/customize/btyahoo/defaults/sp/*http://uk.search.yahoo.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.google.co.uk
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) =
http://uk.red.clientapps.yahoo.com/customize/btyahoo/defaults/su/*http://uk.search.yahoo.com/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 218.145.25.84:8080
O2 - BHO: IEWatchObj Class - {9527D42F-D666-11D3-B8DD-00600838CD5F} - C:\WINDOWS\System32\IETie.dll
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O23 - Service: Reset 5 - Unknown - C:\WINDOWS\system32\srvany.exe
When done, delete:
C:\WINDOWS\system32\srvany.exe
C:\WINDOWS\system32\resetservice.exe
C:\WINDOWS\System32\IETie.dll
For the drwtsn32.exe problem, see here
http://216.239.59.104/search?q=cach...9+disable+drwtsn32.exe&hl=en&client=firefox-a
look at the second post by Gaim Mastr