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Brontok Worm


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#1 Dave Rankin

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Posted 24 November 2007 - 12:58 AM

I have acquired a bug courtesy of a student's infected cd.



The virus has been removed, but every time I boot up I am told that windows is unable to find C;\WINDOWS\sembako-dfzjloh.exe and that I should check that I have entered the correct path etc.



I've done scandisks and defrags, which is about the depth of my computer repair knowledge.



Any ideas on how I can erase this annoying message? (And possibly fix the unknown damage that the virus may have done)

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#2 quietman7

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Posted 24 November 2007 - 07:13 AM

Welcome to BC Dave

Please download the Brontok Worm Removal Tool by sUBs and save it to your Desktop.
  • Disconnect the computer from the Internet and close all other programs.
  • Double-click CleanX-II.exe and follow the prompts.
  • The tool will begin scanning your machine. Because this worm names it's files randomly, there are a series of cross-checks/verification processes to ensure that the tool does not remove legitimate files. Depending on the size of your drives, this scan may take several minutes. Please be patient during this period & allow it to complete it's task.
  • Once the scan is complete it will provide a text log of the results. If the log shows any files remaining in the bottom portion under "POST RUN ANALYSIS" run the entire scan a second time.
From what you describe in regards to the error message, the file is probably an orphaned entry related to a program (or malware) that was set to run at startup. Windows is trying to load this file but cannot locate it since the file may have been removed during an anti-virus or anti-malware scan, the uninstall of a program or use of a specialized fix tool. However, an associated registry entry remains and is telling Windows to load the file when you boot up.

When Windows loads, it looks for any files associated with registry entries for programs that are set to run at startup. If the file was removed but not the registry entry, Windows will display an error message indicating that the file was not found. You need to remove this registry entry so Windows stops searching for the program when it loads.

To resolve this download and run Autoruns, search for the related entry and then delete it.
  • Create a new folder on your hard drive called AutoRuns and extract (unzip) the file there. (click here if your not sure how to do this.)
  • Open the folder and double-click on autoruns.exe to launch it.
  • Please be patient as it scans and populates the entries.
  • When done scanning, it will say Ready at the bottom.
  • Scroll through the list and look for a startup entry related to the file in the error message.
  • Right-click on the entry and choose delete.
  • Reboot your computer and see if the startup error returns.

Edited by quietman7, 24 November 2007 - 07:15 AM.

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