Monday, June 18, 2012

Trojans !!


Backdoor.Poly
Detected As: Backdoor.Poly
This threat is detected by the latest Virus Definitions.
All computer users should employ safe computing practices, including:

    * Keeping your Virus Definitions updated.
    * Installing Norton AntiVirus program updates, when available.
    * Deleting suspicious looking emails.

You may also scan your PC for threats now, by using the free online Symantec Security Check.
To ensure complete protection against viruses and similar threats, please review Symantec's product offerings for Home & Home Office, Small & Mid-Sized Business and Enterprise users.
Removal Instructions
The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.

   1. Disable System Restore (Windows Me/XP).
   2. Update the virus definitions.
   3. Run a full system scan and delete all the files detected.
   4. Submit the files to Symantec Security Response.

For specific details on each of these steps, read the following instructions.
1. To disable System Restore (Windows Me/XP)
If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.
Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations.
Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat.
For instructions on how to turn off System Restore, read your Windows documentation, or one of the following articles:

    * How to disable or enable Windows Me System Restore
    * How to turn off or turn on Windows XP System Restore

Note: When you are completely finished with the removal procedure and are satisfied that the threat has been removed, reenable System Restore by following the instructions in the aforementioned documents.
For additional information, and an alternative to disabling Windows Me System Restore, see the Microsoft Knowledge Base article: Antivirus Tools Cannot Clean Infected Files in the _Restore Folder (Article ID: Q263455).
2. To update the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:

    * Running LiveUpdate, which is the easiest way to obtain virus definitions: These virus definitions are posted to the LiveUpdate servers once each week (usually on Wednesdays), unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, refer to Virus Definitions (LiveUpdate).
    * Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted daily. You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to Virus Definitions (Intelligent Updater).

The latest Intelligent Updater virus definitions can be obtained here: Intelligent Updater virus definitions. For detailed instructions read the document: How to update virus definition files using the Intelligent Updater.
3. To scan for and repair the infected files
a. Start your Symantec antivirus software and make sure that it is configured to scan all the files.

    * For Norton AntiVirus consumer products: Read the document, "How to configure Norton AntiVirus to scan all files."
    * For Symantec AntiVirus Enterprise products: Read the document, "How to verify that a Symantec corporate antivirus product is set to scan all files."

b. Run a full system scan.
c. If any files are detected, click Repair (if available). If there is no Repair option, click Delete.
Important: If you are unable to start your Symantec antivirus product or the product reports that it cannot repair or delete a detected file, you may need to stop the risk from running in order to remove it. To do this, run the scan in Safe mode. For instructions, read the document, How to start the computer in Safe Mode. Once you have restarted in Safe mode, run the scan again.
After the files are repaired or deleted, restart the computer in Normal mode.
4. To submit the files to Symantec Security Response
Symantec Security Response suggests that you submit any files that are detected as generic to Symantec Security Response. For instructions on how to do this, read the following documents:

    * Norton AntiVirus: How to submit a file to Symantec Security Response using Scan and Deliver.
    * Symantec AntiVirus Corporate Edition and Norton AntiVirus Corporate Edition: How to submit a file to Symantec Security Response using Scan and Deliver.

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