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Infected with Trojan horse crypt.EML


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6 replies to this topic

#1 keltaena

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Posted 10 June 2009 - 09:43 AM

Hello,
I have previously posted a thread about my hijacked browser. In relation to that, I now seem to have the Trojan horse crypt.EML virus (I haven't downloaded anything besides AVG.)
The virus has been identified in scans by both AVG and ZoneAlarm, but neither is able to clean or remove the file. AVG says "Unable to clean file: Access Denied." ZoneAlarm claims to remove the file, but then finds it again in the next scan. The virus appears to proliferate itself. AVG picks up multiple copies of the file C:\Windows\System32\gxvxcirxbbprwvvhfohiwenroxdvprpmjxxtt.dll
For now, I am going to avoid using the internet on that computer, unless there are programs I need in order for you to help solve this problem.
Thanks muchly.

Edited by keltaena, 10 June 2009 - 09:44 AM.


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#2 quietman7

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Posted 10 June 2009 - 11:15 AM

Please download Malwarebytes Anti-Malware (v1.37) and save it to your desktop.
alternate download link 1
alternate download link 2

MBAM 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.
  • 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.

Some types of malware will disable Malwarebytes Anti-Malware and other security tools. If MBAM will not install, try renaming it first.
  • Right-click on the mbam-setup.exe file file and rename it to mysetup.exe.
  • Double-click on mysetup.exe to start the installation.
  • If that did not work, then try renaming and changing the file extension. <- click this link if you do not see the file extension
  • Right-click on the mbam-setup.exe file, rename it to mysetup and change the .exe extension to .scr, .com, .pif, or .bat.
  • Then double-click on mysetup.scr (or whatever extension you renamed it) to begin installation.
If after installation, MBAM will not run, open the Malwarebytes' Anti-Malware folder in Program Files.
  • Right-click on mbam.exe, rename it to myscan.exe.
  • Double-click on myscan.exe to launch the program.
  • If that did not work, then try renaming and change the .exe extension in the same way as noted above.
  • Double-click on myscan.scr (or whatever extension you renamed it) to launch the program.
If using Windows Vista, refer to How to Change a File Extension in Windows Vista.
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#3 keltaena

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Posted 11 June 2009 - 09:50 PM

Hi,
Below is my Malware Bytes log. I kept getting other viruses while I was trying to get this sorted out, so even though this says everything is clean now, I'm a bit nervous. I am also able to update my ZoneAlarm virus scanner again, which quit updating when I got hijacked originally--so that makes me happy. Anyway, thanks for your help.


Malwarebytes' Anti-Malware 1.37
Database version: 2260
Windows 6.0.6001 Service Pack 1

6/11/2009 7:21:40 PM
mbam-log-2009-06-11 (19-21-40).txt

Scan type: Quick Scan
Objects scanned: 79239
Time elapsed: 6 minute(s), 17 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 0
Registry Data Items Infected: 3
Folders Infected: 3
Files Infected: 7

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\ErrorSmart (Rogue.ErrorSmart) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{3c4c231c-bd71-4ac7-a165-5023550969d3}\DhcpNameServer (Trojan.DNSChanger) -> Data: 85.255.112.207,85.255.112.210 -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Interfaces\{3c4c231c-bd71-4ac7-a165-5023550969d3}\DhcpNameServer (Trojan.DNSChanger) -> Data: 85.255.112.207,85.255.112.210 -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\Tcpip\Parameters\Interfaces\{3c4c231c-bd71-4ac7-a165-5023550969d3}\DhcpNameServer (Trojan.DNSChanger) -> Data: 85.255.112.207,85.255.112.210 -> Quarantined and deleted successfully.

Folders Infected:
c:\Users\Keltaena\AppData\Roaming\ErrorSmart (Rogue.ErrorSmart) -> Quarantined and deleted successfully.
c:\Users\Keltaena\AppData\Roaming\errorsmart\Log (Rogue.ErrorSmart) -> Quarantined and deleted successfully.
c:\Users\Keltaena\AppData\Roaming\errorsmart\Registry Backups (Rogue.ErrorSmart) -> Quarantined and deleted successfully.

Files Infected:
c:\Users\Keltaena\AppData\Local\Temp\tmp585.tmp (Trojan.Downloader) -> Quarantined and deleted successfully.
c:\Users\Keltaena\AppData\Roaming\errorsmart\Log\2008 Feb 14 - 10_37_29 PM_900.log (Rogue.ErrorSmart) -> Quarantined and deleted successfully.
c:\Users\Keltaena\AppData\Roaming\errorsmart\Log\2008 Feb 14 - 10_37_36 PM_110.log (Rogue.ErrorSmart) -> Quarantined and deleted successfully.
c:\Users\Keltaena\AppData\Roaming\errorsmart\Log\2008 Feb 15 - 03_30_09 AM_570.log (Rogue.ErrorSmart) -> Quarantined and deleted successfully.
c:\Users\Keltaena\AppData\Roaming\errorsmart\registry backups\2008-02-14_13-59-05.reg (Rogue.ErrorSmart) -> Quarantined and deleted successfully.
c:\RECYCLER\S-8-9-51-100018435-100010806-100020614-3976.com (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Windows\Tasks\ErrorSmart Scheduled Scan.job (Rogue.ErrorSmart) -> Quarantined and deleted successfully.

#4 quietman7

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Posted 12 June 2009 - 04:48 AM

Now rescan again with Malwarebytes Anti-Malware but this time perform a Full Scan in normal mode and check all items found for removal. Don't forgot to check for database definition updates through the program's interface (preferable method) before scanning and to reboot afterwards. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. When done, click the Logs tab and copy/paste the contents of the new report in your next reply.

Please download ATF Cleaner by Atribune & save it to your desktop. DO NOT use yet.
alternate download link

Then download and install SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If it will not start, go to Start > All Prgrams > SUPERAntiSpyware and click on Alternate Start.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and 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 and exit the program.
  • Do not run a scan just yet.
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 SUPERAntiSpyware as follows:
  • Launch the program and 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 if you want to reboot, click "Yes" and reboot normally.
  • To retrieve the removal information after reboot, launch SUPERAntispyware again.
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.
If you cannot boot into safe mode, then perform your scans in normal mode.
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#5 keltaena

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Posted 12 June 2009 - 07:16 AM

Thanks again for your continued help!

Here is my full scan log:

Malwarebytes' Anti-Malware 1.37
Database version: 2265
Windows 6.0.6001 Service Pack 1

6/12/2009 8:11:15 AM
mbam-log-2009-06-12 (08-11-15).txt

Scan type: Full Scan (C:\|D:\|)
Objects scanned: 206085
Time elapsed: 2 hour(s), 28 minute(s), 56 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#6 keltaena

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Posted 14 June 2009 - 03:23 PM

My issue has been resolved. Thank you.

#7 quietman7

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Posted 14 June 2009 - 05:20 PM

You're welcome.

If there are no more problems or signs of infection, 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 users can refer to these links: Create a New Restore Point in Vista and Disk Cleanup in Vista.
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