BleepingComputer.com: BackDoor-exi!confi

Hi all,

yesterday i noticed that my email was acting funny and would not allow me to reply or forward a message. I began to google that topic and as i began doing this i started noticing some other funny stuff, pages being re-routed to random advertising sites etc. i ran webroot which came up clean then ran mcafee which showed me a trojan called "backdoor-exi!confi". i removed it two times but it seems as though the redirecting of web pages and the inconsistancies with my email have continued. I know for certain that the computer is infected but cannot find anything anymore. I have never had an issue with trojans or viruses ever, this is my first. please help is you can. regards,
Kris

-i am running vista, 32 bit. not sure what else you may need. if you need me to run any software to provide a log just say and ill do it.

This post has been edited by Budapest: 25 August 2011 - 07:50 PM

I removed your DDS logs as they are not permitted in this section of the forum.

Please download Malwarebytes Anti-Malware and save it to your desktop.

• Important!! When you save the mbam-setup file, rename it to something random (such as 123abc.exe) before beginning the download.

Malwarebytes 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 and double-click on the renamed file to install the application.
  For instructions with screenshots, please refer to this Guide.
  
• When the installation begins, follow the prompts and do not make any changes to default settings.
  
• Malwarebytes 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 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.

• Under the Scanner tab, make sure the "Perform Quick Scan" option is selected.
  
• Click on the Scan button.
  
• When 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, then click the Show Results button to see a list of any malware that was found.
  
• Make sure that everything is checked and then 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.
  
• 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 the database version and your operating system.
  
• Exit Malwarebytes when done.

Note: If Malwarebytes encounters a file that is difficult to remove, you will be asked to reboot your computer so it can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally will prevent Malwarebytes from removing all the malware.

Malwarebytes' Anti-Malware 1.51.1.1800
www.malwarebytes.org

Database version: 7571

Windows 6.0.6002 Service Pack 2
Internet Explorer 7.0.6002.18005

8/25/2011 8:12:05 PM
mbam-log-2011-08-25 (20-12-05).txt

Scan type: Quick scan
Objects scanned: 174713
Time elapsed: 9 minute(s), 29 second(s)

Memory Processes Infected: 2
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 4
Registry Data Items Infected: 1
Folders Infected: 0
Files Infected: 3

Memory Processes Infected:
c:\Users\k. slatten\AppData\Roaming\dwm.exe (Trojan.Agent) -> 2932 -> Unloaded process successfully.
c:\Users\k. slatten\AppData\Roaming\microsoft\conhost.exe (Trojan.Agent) -> 1488 -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\conhost (Trojan.Agent) -> Value: conhost -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\Load (Trojan.Agent) -> Value: Load -> Delete on reboot.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell (Hijack.Shell.Gen) -> Value: Shell -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyServer (PUM.Bad.Proxy) -> Value: ProxyServer -> Quarantined and deleted successfully.

Registry Data Items Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\Load (Trojan.Agent) -> Bad: (C:\Users\KD734~1.SLA\AppData\Local\Temp\csrss.exe) Good: () -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
c:\Users\k. slatten\AppData\Roaming\dwm.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\Users\k. slatten\AppData\Roaming\microsoft\conhost.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\Users\K. Slatten\AppData\Local\Temp\csrss.exe (Trojan.Agent) -> Delete on reboot.

-this is what i got back. i went in and deleted the registry key that says delete upon reboot, however, i could not find the folder csrss.exe in the location specified. any ideas? thanks a million so far though. looks like its all taken care of, at first i could not connect to the internet but went in and changed the proxy settings to auto detect and its back up.

When is says "delete on reboot" that means Malwarebytes has set it to be deleted. You do not have to do it manually.

Please download and scan with 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".

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 have a problem downloading, installing or getting SAS to run, try downloading and using the SUPERAntiSpyware Portable Scanner instead. Save the randomly named file (i.e. SAS_1710895.COM) to a usb drive or CD and transfer to the infected computer. Then double-click on it to launch and scan. The file is randomly named to help keep malware from blocking the scanner.