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W32.Downadup.B \ Win32/Conficker.B After cleaning WSUS is not working

Posted on 2009-02-16
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Last Modified: 2013-11-22
My server was infected with W32.Downadup.B (Symantec) /  W32/Confick-D (Sophos). After cleaning, WSUS 3.1 is not working. I tried reinstalling .Net Framework 2.1 and reinstalling WSUS 3.1 keeping the old database, but without success.

I have this errors in Event Viewer

System:

Event Source:      Service Control Manager
The SQL Server Integration Services service failed to start due to the following error:
The service did not respond to the start or control request in a timely fashion.

Event Source:      Service Control Manager
The Update Services service failed to start due to the following error:
The service did not respond to the start or control request in a timely fashion.

Application:

Event Source:      ASP.NET 2.0.50727.0
Failed to execute request because the App-Domain could not be created. Error: 0x80070005 Access is denied.

Event Source:      .NET Runtime 2.0 Error Reporting
Faulting application wsusservice.exe, version 3.1.6001.65, stamp 4797e925, faulting module kernel32.dll, version 5.2.3790.4062, stamp 46264680, debug? 0, fault address 0x0000bee7.
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Question by:Znasev
2 Comments
 
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Accepted Solution

by:
Mohamed Osama earned 1200 total points
ID: 23659162
have you taken a look here ?
http://www.experts-exchange.com/Web/Q_20792691.html
http://www.velocityreviews.com/forums/t69684-failed-to-execute-request-because-the-appdomain-could-not-be-created-error-0x80004003-invalid-pointer.html
also Some variants of Downadup will disable BITS service , can you check if the service is not disabled ?

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Author Comment

by:Znasev
ID: 23667780
This site helped me and now WSUS console works, but I am not sure if everything is OK because in process monitor,  wsusservice still has lots of access denied events.

http://msdn.technetweb3.orcsweb.com/friis/archive/2009/01/31/aspnetandconficker.aspx

as advised, I gave full control to SYSTEM to pobpul1.dat :
cacls.exe c:\windows\assembly\pobpul1.dat /E /G SYSTEM:F

In Process monitor, this are the events where wsusservice has access denied, and I don't know the default permisions to this folders/files/keys in WIndows 2003 server with wsus.

"C:\WINDOWS\Debug\UserMode\ChkAcc.log"
"HKLM\Software\Microsoft\EnterpriseCertificates\ca"
"HKLM\SOFTWARE\Microsoft\EnterpriseCertificates\ca"
"HKLM\SOFTWARE\Microsoft\EnterpriseCertificates\disallowed"
"HKLM\Software\Microsoft\EnterpriseCertificates\disallowed"
"HKLM\Software\Microsoft\EnterpriseCertificates\Disallowed"
"HKLM\SOFTWARE\Microsoft\EnterpriseCertificates\Disallowed"
"HKLM\Software\Microsoft\EnterpriseCertificates\root"
"HKLM\SOFTWARE\Microsoft\EnterpriseCertificates\root"
"HKLM\Software\Microsoft\EnterpriseCertificates\trust"
"HKLM\SOFTWARE\Microsoft\EnterpriseCertificates\trust"
"HKLM\Software\Microsoft\SystemCertificates\AuthRoot"
"HKLM\SOFTWARE\Microsoft\SystemCertificates\AuthRoot"
"HKLM\Software\Microsoft\SystemCertificates\ca"
"HKLM\SOFTWARE\Microsoft\SystemCertificates\ca"
"HKLM\Software\Microsoft\SystemCertificates\disallowed"
"HKLM\Software\Microsoft\SystemCertificates\Disallowed"
"HKLM\SOFTWARE\Microsoft\SystemCertificates\disallowed"
"HKLM\SOFTWARE\Microsoft\SystemCertificates\Disallowed"
"HKLM\Software\Microsoft\SystemCertificates\root"
"HKLM\SOFTWARE\Microsoft\SystemCertificates\root"
"HKLM\Software\Microsoft\SystemCertificates\trust"
"HKLM\SOFTWARE\Microsoft\SystemCertificates\trust"
"HKLM\Software\Policies\Microsoft\SystemCertificates\ca"
"HKLM\SOFTWARE\Policies\Microsoft\SystemCertificates\ca"
"HKLM\Software\Policies\Microsoft\SystemCertificates\Disallowed"
"HKLM\Software\Policies\Microsoft\SystemCertificates\disallowed"
"HKLM\SOFTWARE\Policies\Microsoft\SystemCertificates\disallowed"
"HKLM\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed"
"HKLM\Software\Policies\Microsoft\SystemCertificates\root"
"HKLM\SOFTWARE\Policies\Microsoft\SystemCertificates\root"
"HKLM\Software\Policies\Microsoft\SystemCertificates\trust"
"HKLM\SOFTWARE\Policies\Microsoft\SystemCertificates\trust"
"HKU\S-1-5-20\Software\Policies\Microsoft\SystemCertificates\ca"
"HKU\S-1-5-20\Software\Policies\Microsoft\SystemCertificates\disallowed"
"HKU\S-1-5-20\Software\Policies\Microsoft\SystemCertificates\Disallowed"
"HKU\S-1-5-20\Software\Policies\Microsoft\SystemCertificates\trust"
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