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browsers do not start up

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mistycloud
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I run Win 7 Home Premium.

All of a sudden I got a problem with upstarting browsers. The browser processes start for a second, then disappear. Browsers (windows) do not start.

Here is detail description.

I have 2 browsers: firefox and IE.
When I start my computer and try to start FF, the firefox.exe process appears for a second or 2, and then disapears. The FF browser does not start.
The same thing happens with IE.
But then I noticed that if I click IE many times, and many iexlpore.exe processes will start, than before they disappear, I click FF and then firefox.exe starts and FF browser starts. In this case those (many) iexplore.exe processes still exist, but IE browser does not start.

Then I tried to download and install Chrome. It would not install - I get error (I believe 0x80040905). But this is sidenote.

I think there is something wrong with all browsers.

Here is my application log (in the vent log I get error that I think has to do with my problem)

Faulting application name: regsvr32.exe, version: 6.1.7600.16385, time stamp: 0x4a5bca28
Faulting module name: MSVCR100.dll, version: 10.0.30319.1, time stamp: 0x4ba1dbbe
Exception code: 0xc0000417
Fault offset: 0x0008ae6e
Faulting process id: 0x172c
Faulting application start time: 0x01cd6529470ff37e
Faulting application path: C:\Windows\System32\regsvr32.exe
Faulting module path: C:\Program Files\Mozilla Firefox\MSVCR100.dll
Report Id: 84c3a27f-d11c-11e1-bb59-002618247070

Hopefully I can get help here as I did not found the same problem elsewhere.

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JorgeM
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To rule out any malware, I would suggest that from another computer, download a copy of MalwareBytes and copy it over via USB. Run it and remove all malware found on your PC.

You could also uninstall and reinstall the latest version of FF.

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mistycloud
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Thank you!

Indeed, Malwarebytes has helped to resolve the problem.
Very strange though as I have both Kaspersky and SpyBot active....

It found:
C:\ProgramData\Windows\wsse.dll (Rootkit.TDSS)
aqze.exe (Trojan.Agent)
ms0cfg32.exe (Exploit.Drop.GS)
oPR_c8iy.xlsx.part (Trojan.Agent)
a.txt (Worm.Traces)

Any idea which of them might cause the problem? ANd how I got it? :)

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chronic.cohen
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Its a Malware/Trojan.

Delete:

Regedit > HKCR\CLSID(312BFDCE-A901-4203-B4F2-ADCB957D1887)

1: C:\ProgramData\Windows\msseedir.dll
2: C:\ProgramData\Windows\ccdxmmde.dat
3: C:\ProgramData\Windows\drss.dat
4: C:\ProgramData\Windows\xessmsxe.dat
delete the whole folder C:\ProgramData\Windows if you like

or download Malwarebytes Antivirus and do a Quickscan.

I know its strange that the biggest Av Comapnys still dont have this in the Signatures, even after countless uploads to services like virustotal.com.

You
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