This Looks like what you have it is a network worm so that is how it spreads through the network the only difference is the letter this one is (BVK) and yours is (BKV) I'm sure they do the same thing, you can see all the registry changes it makes, and it appears to disable some software and then tries to connect to a server. W32/Sdbot-BVK is a worm and IRC backdoor Trojan for the Windows platform. W32/Sdbot-BVK can spread via network shares protected by weak passwords, or by exploiting common vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), PNP (MS05-039), and ASN.1 (MS04-007). W32/Sdbot-BVK runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels. W32/Sdbot-BVK includes functionality to access the internet and communicate with a remote server via HTTP. When first run W32/Sdbot-BVK copies itself to \netbtd.exe. The file netbtd.exe is registered as a new system driver service named "NetBTD", with a display name of "NetBTD(ntbtd)" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under: HKLM\SYSTEM\CurrentControlSet\Services\NetBTD\ W32/Sdbot-BVK sets the following registry entries, disabling the automatic startup of other software: HKLM\SYSTEM\CurrentControlSet\Services\Messenger Start 4 HKLM\SYSTEM\CurrentControlSet\Services\RemoteRegistry Start 4 HKLM\SYSTEM\CurrentControlSet\Services\TlntSvr Start 4 Registry entries are set as follows: HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate DoNotAllowXPSP2 1 HKLM\SOFTWARE\Microsoft\Ole EnableDCOM N HKLM\SYSTEM\CurrentControlSet\Control\Lsa restrictanonymous 1 Registry entries are created under: HKLM\SOFTWARE\Microsoft\Security Center\ HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile\ HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile\ RSS:Atom Get reports on the latest virus threats delivered to your computer

Your post reminds me how out of touch I have become with this kind of problem (and I am just posting about a possible win install too). However like you, I remember some things from my past and I suspect that your problem is probably a simple fix. At least for the time being, I think reinstalling windows is extreme and since you have a second working computer you should wait for some of these other clever folks to help. I'll bet there is some utility to help with this but if not, there must be a way to mnually link particular extensions to specific programs, and for the time being you would probably only need to make a couple of links (but don't ask me how).

I do not know if what you are seeing is the real shield or if you have one of the fake AV infections which produces a fake shield it sounds like you do have one of the infections. Run malwarebytes asap and post the scan results here please. Please download Malwarebytes' Anti-Malware to your desktop. * Double-click mbam-setup.exe and follow the prompts to install the program. * At the end, be sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish. * If an update is found, it will download and install the latest version. * Once the program has loaded, select Perform full scan, then click Scan. * When the scan is complete, click OK, then Show Results to view the results. * Be sure that everything is checked, and click Remove Selected. * When completed, a log will open in Notepad. Please save it to a convenient location. The log can also be found here: C:\Documents and Settings\Username\Application Data\Malwarebytes\Malwarebytes' Anti-Malware\Logs\log-date.txt

Raven, This is what Jotti had to say: Service load: 0% 100% File: ashampoo_firewallpro114_sm.exe Status: OK MD5: 28fe60f9448c79a322c7e7a8a21e534f Packers detected: - Scanner results Scan taken on 03 Oct 2008 16:31:43 (GMT) A-Squared Found nothing AntiVir Found nothing ArcaVir Found nothing Avast Found nothing AVG Antivirus Found nothing BitDefender Found nothing ClamAV Found nothing CPsecure Found nothing Dr.Web Found nothing F-Prot Antivirus Found nothing F-Secure Anti-Virus Found nothing G DATA Found nothing Ikarus Found nothing Kaspersky Anti-Virus Found nothing NOD32 Found nothing Norman Virus Control Found nothing Panda Antivirus Found nothing Sophos Antivirus Found nothing VirusBuster Found nothing VBA32 Found nothing So All of these says it is noting to worry about it?