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Trojan Horse


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5 replies to this topic

#1 Computist

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Posted 12 August 2011 - 09:07 PM

Hello!

I have a trojan.DNSchanger
93.188.161.105

I tried to delete it with Malwarebytes' Anti-Malware, and it says that it deleted it, but after restarting the computer, it still had to block it, so I don't think it was deleted.

Can this be done without having to restart the router or doing anything with the router? It only affects this computer.

Oh, and I can't download the newest version of the anti-malware.

Thanks!

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#2 boopme

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Posted 12 August 2011 - 09:21 PM

Hello, I moved you to Am I Infected as this area requires specific logs.


Are you redirecting>>>
Change your DNS Servers:
  • Go to Posted Image > Run... and in the open box, type: cmd
  • Press OK or Hit Enter.
  • At the command prompt, type or copy/paste: ipconfig /flushdns
  • Hit Enter.
  • You will get a confirmation that the flush was successful.
  • Close the command box.
If the above commands did not resolve the problem, the next thing to try is to reset your network settings and Configure TCP/IP to use DNS.
  • Go to Posted Image > 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 Internet Protocol (TCP/IP) or highlight it and select Properties.
  • Under the General tab, write down any settings in case you should need to change them back.
  • Select the button that says "Obtain an IP address automatically" or make sure the DNS server IP address is the same as provided by your ISP.
  • Select the button that says "Obtain DNS servers automatically".
  • If unknown Preferred or Alternate DNS servers are listed, uncheck the box that says "Use the following DNS server address".
  • Click OK twice to get out of the properties screen and restart your computer. If not prompted to reboot go ahead and reboot manually.
-- Vista users can refer to How to Change TCP/IP settings

CAUTION: It's possible that your ISP (Internet Service Provider) requires specific DNS settings here. Make sure you know if you need these settings or not BEFORE you make any changes or you may lose your Internet connection. If you're sure you do not need a specific DNS address,
then you may proceed.



Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.
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#3 Computist

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Posted 13 August 2011 - 10:03 AM

Ok, when I checked for updates in the update tab, it said "PROGRAM_ERROR_UPDATING (11004, 0, No address found)"

This is the log it gave me when I scanned:

Malwarebytes' Anti-Malware 1.51.1.1800
www.malwarebytes.org

Database version: 7035

Windows 5.1.2600 Service Pack 2
Internet Explorer 8.0.6001.18702

8/12/2011 11:14:37 PM
mbam-log-2011-08-12 (23-14-37).txt

Scan type: Quick scan
Objects scanned: 190462
Time elapsed: 13 minute(s), 0 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 4
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:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DhcpNameServer (Trojan.DNSChanger) -> Bad: (93.188.161.105) Good: () -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DhcpNameServer (Trojan.DNSChanger) -> Bad: (93.188.166.105) Good: () -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{7E53B599-D117-4D93-B1C4-D8409E99F304}\DhcpNameServer (Trojan.DNSChanger) -> Bad: (93.188.161.105) Good: () -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{7E53B599-D117-4D93-B1C4-D8409E99F304}\DhcpNameServer (Trojan.DNSChanger) -> Bad: (93.188.166.105) Good: () -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

But it isn't deleted successfully.

Oh, and I think that the file I downloaded to get this virus was fate-wt.exe if that helps...

Edited by Computist, 13 August 2011 - 05:56 PM.


#4 boopme

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Posted 13 August 2011 - 06:10 PM

OK, 1. Uninstall Malwarebytes' Anti-Malware using Add/Remove programs in the control panel.
2. Restart your computer (very important).
3. Download and run this utility. Mbam clean
4. It will ask to restart your computer (please allow it to).
5. After the computer restarts, install the latest version from here. http://www.malwarebytes.org/mbam-download.php
Note: You will need to reactivate the program using the license you were sent.
Note: If using Free version, ignore the part about putting in your license key and activating.
Launch the program and set the Protection and Registration.
Then go to the UPDATE tab if not done during installation and check for updates.
Restart the computer again and verify that MBAM is in the task tray and run a Quick Scan and post that log.



I'd like us to scan your machine with ESET OnlineScan
  • Hold down Control and click on the following link to open ESET OnlineScan in a new window.
    ESET OnlineScan
  • Click the Posted Image button.
  • For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
    • Click on Posted Image to download the ESET Smart Installer. Save it to your desktop.
    • Double click on the Posted Image icon on your desktop.
  • Check Posted Image
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Under scan settings, check Posted Image and check Remove found threats
  • Click Advanced settings and select the following:
    • Scan potentially unwanted applications
    • Scan for potentially unsafe applications
    • Enable Anti-Stealth technology
  • ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
  • When the scan completes, push Posted Image
  • Push Posted Image, and save the file to your desktop using a unique name, such as ESETScan. Include the contents of this report in your next reply.
  • Push the Posted Image button.
  • Push Posted Image


NOTE: In some instances if no malware is found there will be no log produced.
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

#5 Computist

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Posted 17 August 2011 - 06:16 PM

Sorry it's taken me so long to respond.

However, I was able to get as far as to uninstall Malwarebytes. The Mbam clean link did not work.

I can't access Malwarebytes' website at all.

#6 boopme

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Posted 17 August 2011 - 08:09 PM

OK the link works fine for me ,so you still have a DNS changer.

Your router is hijacked by trojan DNS-hijacker.

  • Please read this: Malware Silently Alters Wireless Router Settings

  • Then reset your router to it's factory default settings:

    "If your machine has been infected by one of these Zlob/DNSchanger Trojans, and your router settings have been altered, I would strongly recommend that you reset the router to its default configuration. Usually, this can be done by inserting something tiny like a paper clip end or pencil tip into a small hole labeled "reset" located on the back of the router. Press and hold down the small button inside until the lights on the front of the router blink off and then on again (usually about 10 seconds)"


  • This is the difficult part.
    First get to the routers server. To do that open Internet Explorer and type http:\\192.168.1.1 in the address bar and click Enter. You get the log in window.
    Fill in the password you have already found and you will get the configuration page.
    Configure the router to allow you to connect to your ISP server. In some routers it is done by a setup wizard. But you have to fill in the log in password your ISP has initially given to you.
    You can also call your ISP if you don't have your initial password.
    Don't forget to change the routers default password and set a strong password. Note down the password and keep it somewhere for future reference.

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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