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Generic Downloader.x!dhy


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#1 Southpawd

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Posted 30 March 2010 - 03:49 PM

Last week, McAfee apparently detected a trojan on my computer. The scan logs contained the following information:

3/21/2010 2:41:40 PM Quick Scan Cannot be removed
One or more items were detected on your computer.
Detection name: Generic Downloader.x!dhy (Trojan), Generic Downloader.x!dhy (Trojan)
File: C:\WINDOWS\SYSWOW64\PACONSPE.DLL

3/21/2010 2:44:59 PM Real-Time Scan Repaired (removed)
One or more itmes were detected on your computer
Detection name: Generic Downloader.x!dhy (Trojan), (this detection name was then repeated 34 times)
Registry: C:\Windows\SysWOW64\paconspe.dll
Process: C:\Program files (x86)\Malwarebytes' Anti-Malware/mbam.exe
Process description: Malwarebytes' Anti-Malware

I have since run scans with McAfee, Ad-Aware and Malwarebytes. None of them has detected anything malicious. I ran HijackThis last night and can post that log if necessary.
My computer appears to be operating normally, but I want to confirm that I no longer have an infection.
Thanks in advance for any help.
(Edit: I am using Windows 7 Pro, 64 bit.)

Edited by Southpawd, 30 March 2010 - 04:05 PM.


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#2 Southpawd

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Posted 01 April 2010 - 11:29 AM

Update:
I scanned the computer with ESET and it reported the following:
C:\Windows\Installer\127dcb.msi Win32/TrojanDownloader.VB.OIC trojan deleted - quarantined
I also ran SuperAntiSpyware, but it came out clean.
Please, can anyone advise what I need to do? Am I okay to use this machine now or should I still be concerned about possible infections?
Thanks.

#3 boopme

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Posted 01 April 2010 - 11:40 AM

Was your Malwarebytes updated to he lastest 1.45 engine?

You can also run Drweb-cureit
Before we start fixing anything you should print out these instructions or copy them to a NotePad file so they will be accessible. Some steps will require you to disconnect from the Internet or use Safe Mode and you will not have access to this page.

Please download Dr.Web CureIt and save it to your desktop. DO NOT perform a scan yet.
alternate download link
Note: The file will be randomly named (i.e. 5mkuvc4z.exe).

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".

Scan with Dr.Web CureIt as follows:
  • Double-click on the randomly named file to open the program and click Start. (There is no need to update if you just downloaded the most current version
  • Read the Virus check by DrWeb scanner prompt and click Ok where asked to Start scan now? Allow the setup.exe to load if asked by any of your security programs.
  • The Express scan will automatically begin.
    (This is a short scan of files currently running in memory, boot sectors, and targeted folders).
  • If prompted to dowload the Full version Free Trial, ignore and click the X to close the window.
  • If an infected object is found, you will be prompted to move anything that cannot be cured. Click Yes to All. (This will move any detected files to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if they can't be cured)
  • After the Express Scan is finished, put a check next to Complete scan to scan all local disks and removable media.
  • In the top menu, click Settings > Change settings, and uncheck "Heuristic analysis" under the "Scanning" tab, then click Apply, Ok.
  • Back at the main window, click the green arrow "Start Scanning" button on the right under the Dr.Web logo.
  • Please be patient as this scan could take a long time to complete.
  • When the scan has finished, a message will be displayed at the bottom indicating if any viruses were found.
  • Click Select All, then choose Cure > Move incurable.
  • In the top menu, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop.
  • 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.
  • After reboot, post the contents of the log from Dr.Web in your next reply. (You can use Notepad to open the DrWeb.cvs report)

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#4 Southpawd

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Posted 01 April 2010 - 12:09 PM

Thank you.
I always update Malwarebytes before I run a scan, so I believe I had the latest engine--I will double-check. I won't be able to run Drweb-cureit until tonight, but I will get back to you.
Thanks again for your help.

#5 Southpawd

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Posted 02 April 2010 - 12:27 PM

I have resolved the issue. Thank you for taking the time to respond.

#6 boopme

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Posted 02 April 2010 - 01:58 PM

OK,thanks for the update.

Now you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been backed up, renamed and saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista and Windows 7 users can refer to these links: Create a New Restore Point in Vista or Windows 7 and Disk Cleanup in Vista.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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