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Please help - Trojan horse Agent2.RC


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#1 mamameeya

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Posted 24 March 2009 - 10:02 PM

Hi all,

I have AVG Anti-virus working on XP professional. I had a recent spell of infections, most of which have now been cleaned (I think). The virus scan still picks up 1 infection located in C:\WINDOWS\system32\userinit.exe but does not delete it ("object is white listed. Critical file that should not be removed"). The scan does not pick up any other viruses/infections. The problem now is that I am no longer able to access the internet.

Does anyone know how I can repair this so that I can gain access to the internet and download relevant updates etc to hopefully clean my laptop?

Many thanks in advance for your help

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#2 Budapest

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Posted 24 March 2009 - 10:08 PM

Log on as an administrator, go Start > Run and type: "cmd". In the window that appears type: "netsh winsock reset". 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 Start > Run > type: "cmd" In the window that appears type: "ipconfig /flushdns". Close the command box.

Go Start > Control Panel > 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". Reboot.

Warning: Some Internet Service Providers need specific DNS settings. You need to make sure that you know if such DNS settings are required before you make this change.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#3 mamameeya

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Posted 24 March 2009 - 11:16 PM

Thanks for your response Budapest. Followed your instructions but no luck unfortunately. Still not able to access the internet...

#4 mamameeya

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Posted 24 March 2009 - 11:28 PM

Hi guys,

I currently have 2 problems with my laptop (using XP professional):

1. When I start up my PC I get the following message, "RUNDLL - Error loading dll32. The specified module could not be found"

2. I am now no longer able to access the internet

3. My virus-scan shows only 1 infection C:\WINDOWS\system32\userinit.exe but does not delete it ("object is white listed. Critical file that should not be removed")

Are the 3 problems somehow linked? how do I remedy this? (or at the very least access internet again)

Grateful for your feedback and advice

#5 Budapest

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Posted 24 March 2009 - 11:38 PM

Try this fix:

http://www.cexx.org/lspfix.htm
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#6 boopme

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Posted 25 March 2009 - 12:03 AM

Hello I have deleted the other posts around the forums that were duplicates of this and merged the Rundll error here.

See if this fixes your connection issues .

Go to Start ... Run and type in cmd
A dos Window will appear.
Type in the dos window: netsh winsock reset
Click on the enter key.

Reboot your system to complete the process.

~~~`

RunDLL32.exe is a legit Windows file that loads .dll files which too can be legit or malware related. The Cannot find or error loading error message usually occurs when the associated .dll has been removed. The file may have been removed during an anti-virus scan, the uninstall of a program or use of a specialized fix tool. However, an associated registry entry remains and is telling Windows to load the file when you boot up.

If the file was removed but not the entry, Windows will display an error message indicating that the file was not found or there was an error loading. You need to remove this registry entry so Windows stops searching for the program when it loads.

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

Create a new folder on your hard drive called AutoRuns and extract (unzip) the file there. (click here if your 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 with the error message.
Right-click on the file and choose delete.
Reboot your computer and see if the startup error returns.


Now if you can please run MBAM:
Please download Malwarebytes Anti-Malware (v1.34) and save it to your desktop.
alternate download link 1
alternate download link 2
If you have a previous version of MBAM, remove it via Add/Remove Programs and download a fresh copy.
  • 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 updates, manually download them from here and just double-click on mbam-rules.exe to install. Alternatively, you can update through MBAM's interface from a clean computer, copy the definitions (rules.ref) located in C:\Documents and Settings\All Users\Application Data\Malwarebytes\Malwarebytes' Anti-Malware from that system to a usb stick or CD and then copy it to the infected machine.
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 and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. 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 after scanning with MBAM. Please temporarily disable such programs or permit them to allow the changes.
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#7 mamameeya

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Posted 26 March 2009 - 12:20 AM

Boopme, many thanks for your time and help. Finally feel like I am getting somewhere. Never managed to correct IE but downloaded firefox via start/run. You requested copy paste of MBAM report, here it is:

Malwarebytes' Anti-Malware 1.34
Database version: 1749
Windows 5.1.2600 Service Pack 2

26/03/2009 05:06:48
mbam-log-2009-03-26 (05-06-48).txt

Scan type: Quick Scan
Objects scanned: 90713
Time elapsed: 12 minute(s), 8 second(s)

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

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:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit (Trojan.Agent) -> Data: c:\windows\system32\userinit.exe -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit (Trojan.Agent) -> Data: system32\userinit.exe -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
C:\WINDOWS\sysinfomgr.exe (Trojan.Dropper) -> Quarantined and deleted successfully.
C:\win.exe (Trojan.Dropper) -> Quarantined and deleted successfully.
C:\Documents and Settings\j\Local Settings\Temp\ie3.tmp (Trojan.Agent) -> Quarantined and deleted successfully.

#8 Budapest

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Posted 26 March 2009 - 12:22 AM

Reboot your computer, run the Malwarebytes Full-Scan and post the new log.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw




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