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Trojan Horse Repeatedly Blocked with Norton


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#1 eyedrops

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Posted 15 December 2009 - 01:08 AM

Hi All,

Thanks for reading this. Within the last week or so my Norton Internet Security (Microsoft Windows XP) has been having trouble with its "Protection Updates". My Norton status has been showing "At Risk", but when I click on the program to search for updates it completes the process but the "At Risk" status remains. Furthermore, whenever I click on Norton's "Help & Support" I receive a notification from Norton saying that "Auto-Protect has blocked a Trojan Horse" (Risk Level: High).

I have just downloaded and scanned with Avast for a "second opinion", and it is showing no infected files. Also, my Norton status is now showing as "Secure". However, when I open Norton and click on "Help & Support" I am continuing to receive the "Auto-Protect has blocked a Trojan Horse" message.

I'm not very clear on what the problem could be here, and even though Norton says it's "Blocking" the Trojan Horse, why am I consistently getting this message with "Help & Support"? Could Norton be corrupted? Should I try reinstalling Norton?

I would greatly appreciate any advice on this!

Cheers.

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#2 Computer Pro

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Posted 15 December 2009 - 07:59 AM

Hello and welcome to Bleeping Computer.

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Lets take a look with Malwarebytes

Please download Malwarebytes' Anti-Malware from here:
Malwarebytes
Please rename the file BEFORE downloading to zztoy.exe instead of mbam-setup.exe

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.

Double Click zztoy.exe to install the application.
* Make sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select "Perform Full Scan", then click Scan.
* The scan may take some time to finish,so please be patient.
* When the scan is complete, click OK, then Show Results to view the results.
* Make sure that everything is checked, and click Remove Selected.
* When disinfection is completed, a log will open in Notepad and you may be prompted to Restart.(See Extra Note)
* The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
* Copy&Paste the entire MBAM report (even if it does not find anything) in your next reply

Extra Note:
If MBAM encounters a file that is difficult to remove,you will be presented with 1 of 2 prompts,click OK to either and let MBAM proceed with the disinfection process, if asked to restart the computer, please do so immediately.


If Malwarebytes won't install or run

Some types of malware will disable MBAM and other security tools. If MBAM will not install, try renaming it. Right-click on the mbam-setup.exe file and change the .exe extension to .bat, .com, .pif, or .scr and then double-click on it to run.

If after installation, MBAM will not run, open the Malwarebytes' Anti-Malware folder in Program Files, right-click on mbam.exe and change the .exe as noted above. Then double-click on it to run.
Computer Pro

#3 eyedrops

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Posted 15 December 2009 - 08:51 AM

Thanks. And how can I get the Malwarebytes scan to include my external hard drives?

#4 Computer Pro

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Posted 15 December 2009 - 08:52 PM

You can go under the Full Scan and it will ask for which drives to scan.
Computer Pro




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