Specific website can't be opened, then firefox hangs at exit

[mylifeforaiur]

Hi everyone


I have just managed to get rid of one nasty virus, and then installed the Service Pack 1 on my Windows 7 pro 32 bit system. The scans are clean and everything is running back to normal now, except this: I cannot access my online banking website. When I try to, the page does not load, and once that happens, no other page, in this or another tab, can load, and firefox will hang at exit (getting the "Firefox is already running..." message when trying to start it) and has to be killed in the task manager. While browsing in firefox then doesn't work anymore (no pages load), any other application using internet will still work (i.e. skype).
This happens only from this computer, using my laptop on the same internet connection (we have a Wi-Fi router and DSL internet in my flat) everything works fine.
This happens with Firefox AND IE, except that with IE it doesn't hang and I'm still able to load other pages.
I'm running Firefox 4.0.1 and IE 9.0.8112.16421.
The website I'm trying to access is https://banking.postbank.de/app/welcome.do
I've installed the latest Java : (Build 1.6.0_25-b06) but it didn't help solve the problem.

Any clues?

Thanks

 

[JDobbsy1987]

Hi,

What scans have you ran (i.e. What Programs?)

Have a look at your 'Host File' which can be found here:

C:\Windows\System32\drivers\etc\hosts

When you double click hosts it will probably ask what program to open with, just choose notepad.
see if there are any entries in there for this site, if you are unsure then post the contents of your host file here.

Regards,
JDobbsy1987

 

[mylifeforaiur]

Hi and thank you!

Host file is empty! (apart from the introductory comments)

I'm using Microsoft Security Essentials as my antivirus, I've ran Malwarebytes, Spybot Search & Destroy and Bitdefender's online scanner (a quick one).


I still found one more trojan earlier today though:

Microsoft Antimalware has taken action to protect this machine from malware or other potentially unwanted software.
 For more information please see the following:
 [URL="http://go.microsoft.com/fwlink/?linkid=37020&name=Trojan:Win32/Coremhead&threatid=2147624664"]Encyclopedia entry: Trojan:Win32/Coremhead - Learn more about malware - Microsoft Malware Protection Center[/URL]
     Name: Trojan:Win32/Coremhead
     ID: 2147624664
     Severity: Severe
     Category: Trojan
     Path: file:_C:\Windows\System32\config\systemprofile\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\41\56e  05429-739564fe
     Detection Origin: Local machine
     Detection Type: Concrete
     Detection Source: System
     User: Adrien-PC\Adrien
     Process Name: Unknown
     Action: Remove
     Action Status:  No additional actions required
     Signature Version: AV: 1.103.1373.0, AS: 1.103.1373.0, NIS: 9.146.0.0
     Engine Version: AM: 1.1.6802.0, NIS: 2.0.5854.0