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There Was A Problem Starting...


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#1 mpkeith

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Posted 21 December 2010 - 06:03 PM

I couldn't find a better suited forum to post this, so I'm posting here as I use Windows 7. Though I mention antivirus below, my problem is NOT anti-virus related... it's "missing file" related.

Yesterday I decided to switch my antivirus from Avira to Avast as I kept getting a popup asking me if I wanted to allow Avira to run every time I booted up my laptop. When I ran a scan there were two "infected" files which I quarantined and I believe one of them was the basis of the problem I'm having now. Now everytime I boot up my laptop I get a popup saying "There is a problem starting C:\Users\...\AppData\Local\BthcfgLite\nsPathapi.dll". I've searched for this nsPathapi.dll file and get zero results. What the heck is it? If it's not something I need, how can I stop the popup on bootup?

I know I can simply do a system restore, but I've been dealing with a browser hijacker for the past couple weeks and don't want to bring this file back unless I know what it is, and ever since I quarantined it and switched from firefox to chrome I haven't been taken to false pages when doing a google search.

Any help would be appreciated.

Edit: Moved topic from Win 7 to the more appropriate forum. ~ Animal

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#2 boopme

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Posted 22 December 2010 - 04:29 PM

Looks like it was a Sefnit.E infection.
http://www.virustotal.com/file-scan/report.html?id=f6e1c5bb3c46f7b3cca4501695a1ef8f58d4c73bb7b40a87cfb419fbd1ce20a0-1293011449

http://www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Trojan%3AWin32%2FSefnit.E

I think we have an orphaned malware file in nsPathapi.dll

message is usually related to malware that was set to run at startup but has been deleted. Windows is trying to load this file but cannot locate it since the file was mostly likely removed during an anti-virus or anti-malware scan. However, an associated orphaned registry entry remains and is telling Windows to load the file when you boot up. Since the file no longer exists, Windows will display an error message. You need to remove this registry entry so Windows stops searching for the file when it loads.

To resolve this, download Autoruns, search for the related entry and then delete it.

Create a new folder on your hard drive called AutoRuns (C:\AutoRuns) and extract (unzip) the file there. (click here if you're 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(s) in the error message.
Right-click on the entry and choose delete.
Reboot your computer and see if the startup error returns.
Credit to quietman7


Next run MBAM (MalwareBytes):

Please download Malwarebytes Anti-Malware and save it to your desktop.
Download Link 1
Download Link 2MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
    For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

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