Google Redirect

[dave4]

Sorry to do this but I am at my wits end. Every time I do a Google search on Firefox or IE I get redirected to multiple spam sites. I have tried many virus detection programs including Super anti spyware, Malwarebytes, spyware doctor, Comodo etc and they come up clean.

I am new to this but I think I have followed the 8 posting steps. I would really appreciate some advice. Thanks

Logfile of Trend Micro HijackThis v2.0.2 attached (my post was 'too long' to paste here.

 

[dave4]

Hopefully fixed

While waiting for assistance I looked through other threads and saw that ComboFix was often used so gave it a nervous try. It took over an hour to complete the scan but identified a couple of viruses which it cleaned. Since then no redirect yet so hopefully fixed (fingers crossed). Have posted the log as it might be of interest to others and in case there is anything else I should do to clean up and/or prevent reinfection.

ComboFix log:

2009-11-05 14:05:03 . 2009-11-05 14:05:03 716 ----a-w- C:\Qoobox\Quarantine\Registry_backups\AddRemove-CodeCity CityTime Alarms v2.0 - SyMBiAN.reg.dat
2009-11-05 14:04:17 . 2009-11-05 14:04:17 602 ----a-w- C:\Qoobox\Quarantine\Registry_backups\SafeBoot-AVG Anti-Spyware Guard.reg.dat
2009-11-05 14:04:17 . 2009-11-05 14:04:17 602 ----a-w- C:\Qoobox\Quarantine\Registry_backups\SafeBoot-AVG Anti-Spyware Driver.reg.dat
2009-11-05 14:04:04 . 2009-11-05 14:04:04 415 ----a-w- C:\Qoobox\Quarantine\Registry_backups\ShellExecuteHooks-{5AE067D3-9AFB-48E0-853A-EBB7F4A000DA}.reg.dat
2009-11-05 13:53:55 . 2009-11-05 13:53:55 12,840 ----a-w- C:\Qoobox\Quarantine\Registry_backups\tcpip.reg
2009-11-05 13:20:04 . 2009-11-05 13:35:58 113 ----a-w- C:\Qoobox\Quarantine\catchme.log
2008-05-09 01:39:42 . 2009-01-15 06:58:08 87,608 ----a-w- C:\Qoobox\Quarantine\C\Users\David\AppData\Roaming\inst.exe.vir
2008-04-13 01:37:32 . 2007-09-21 11:55:56 308,709 ----a-w- C:\Qoobox\Quarantine\C\Windows\System32\autorun.inf.vir
2008-01-14 03:57:26 . 2007-09-29 12:03:12 308,248 ----a-w- C:\Qoobox\Quarantine\C\Windows\System32\drivers\iaStor.sys.vir
2003-09-23 22:34:19 . 2003-09-23 22:34:19 180,224 ----a-w- C:\Qoobox\Quarantine\C\Windows\System32\ijl11.dll.vir