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Trojan-downloader.win32.small


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#1 ddavis

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Posted 08 November 2007 - 02:57 PM

I clicked on a casino restaurant menu and started to have things download onto my computer even though I have a firewall. I shut off the power to my router and ran spybot, Xoftspy, adware 6, and norton, but still can't seem to get rid of Trojan-downloader.win32.small. I disabled the system restore and even tried to run the spyware programs in SAFE mode. I no longer have internet access and things don't seem to be getting better. I don't have a flashdrive. Someone today gave me their copy of Spyware Doctor which they say should boot up off the CD. Will this fix it? I searched through the archives and it looked pretty complicated. I have no way to burn CD's at work and at home I can't get online. If it sounds like I'm panicking, I am.

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#2 quietman7

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Posted 08 November 2007 - 06:55 PM

You can try using SpywareDoctor but if it does not help then proceed as follows:

Most Internet connectivity problems arise out of corrupt Winsock settings due to the installation of a networking software or Malware infestation. If your ISP provider insists that your connection is coming through, the problem must be at your end.

If your using Windows XP SP2, log on as an administrator.
Go to Start > Run and type: cmd
Press OK or Hit Enter. A dos Window will appear.
At the command prompt, type or copy/paste: netsh winsock reset
Hit Enter.
When the program is finished, you will receive the message: "Successfully reset the Winsock Catalog. You must restart the machine in order to complete the reset."
Close the command box and reboot your computer.

Go to Start > Run > type: cmd
Press OK or Hit Enter.
At the command prompt, type or copy/paste: ipconfig /flushdns
Hit Enter.
Close the command box.

Then go to Start > Control Panel, and choose Network Connections.
Right click on your default connection, usually Local Area Connection or Dial-up Connection if you are using Dial-up, and and choose Properties.
Double-click on the Internet Protocol (TCP/IP) item.
Select the radio button that says "Obtain DNS servers automatically".
Click OK twice to get out of the properties screen and restart your computer.

CAUTION: It is possible that your Internet Service Provider requires specific settings here. Make sure you know if you need specific DNS settings here or not before you make these changes or you may lose your internet connection. If you are sure you do not need a specific DNS address, you may proceed.

If you continue to connectivity problems, download and run WinSockFix.
Be sure to print out and follow the instructions provided in the Winsock Repair Tutorial.

Since you cannot use your Internet, you are going to need access to another computer (family member, friend, etc) with an Internet connection.

Please download the following programs (and WinsockFix mentioned above) and save to a USB stick or CD:
SUPERAntiSpyware Free
SUPERAntiSpyware Free Definition files - (Be sure to download both the Core and Trace Definitions)
ATF Cleaner
Dr.Web CureIt
HijackThis Installer. This is HijackThis 2.0.2 but it is an automatic setup version which will install HJT in the proper location if we need to use it. DO NOT fix anything with HijackThis unless advised.

Transfer all these programs directly to the Desktop of the infected computer <- (Important!)

Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup [but before the Windows icon appears] press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Double-click ATF-Cleaner.exe to run the program.
  • Under Main "Select Files to Delete" choose: Select All.
  • Click the Empty Selected button.
  • If you use Firefox browser click Firefox at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • If you use Opera browser click Opera at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • Click Exit on the Main menu to close the program.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Scan with Dr.Web CureIt as follows:
  • Double-click on cureit.exe to start the program. (ignore any prompts to update or check for a new version)
  • When the Dr.Web opens, an "Express Scan of your PC" notice will appear.
  • Under "Start the Express Scan Now", Click "OK" to start. This is a short scan that will scan the files currently running in memory and when something is found, click the Yes button when it asks you if you want to cure it.
  • Once the short scan has finished, Click Options > Change settings
  • Choose the "Scan tab" and UNcheck "Heuristic analysis"
  • Back at the main window, click "Select drives" (a red dot will show which drives have been chosen)
  • Then click the "Start/Stop Scanning" button (green arrow on the right) and the scan will start.
  • When done, a message will be displayed at the bottom advising if any viruses were found.
  • Click "Yes to all" if it asks if you want to cure/move the file.
  • When the scan has finished, look if you can the next icon next to the files found. If so, click it, then click the next icon right below and select "Move incurable".
    (This will move it to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if it can't be cured)
  • Next, in the Dr.Web CureIt menu on top, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop. (You can use Notepad to open the DrWeb.cvs report)
  • Exit Dr.Web Cureit when done.
  • Important! Reboot your computer because it could be possible that files in use will be moved/deleted during reboot.
Remember to re-enable your anti-virus program when done.

Now double-click SUPERAntiSypware.exe and use the default settings for installation.
  • Navigate to the SUPERAntiSpyware folder in C:\Program Files and unzip both the Core and Trace defintion files.
  • An icon will have been created on your desktop. Double-click that icon to launch the program.
  • Under "General and Startup", make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Under "Configuration and Preferences", click the Preferences button.
  • Click the Scanning Control tab.
  • Under Scanner Options make sure the following are checked (leave all others unchecked):
    • Close browsers before scanning.
    • Scan for tracking cookies.
    • Terminate memory threats before quarantining.
  • Click the "Close" button to leave the control center screen.
  • Back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked to reboot, click "Yes".
  • If not, select Close to exit the program and reboot normally.

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#3 ddavis

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Posted 09 November 2007 - 10:30 AM

A friend gave me Spyware Doctor and last night I used it and it deleted enough so that I was able to get back online. I downloaded avg, ccleaner, superantispyware, regcleaner, Stinger, Sysclean, Trendmicro, Adaware SE, and maybe a couple others. It is taking about 1 1/2 hours per scan so my wife is going through each one today. When I get home I will try to download the others you mentioned and try that as well. I figure I'll hit it with everything.

#4 quietman7

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Posted 09 November 2007 - 10:50 AM

Post back if you continue to have problems.
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