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Virus Detected


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#1 Darren De Wilde

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Posted 24 March 2006 - 09:55 AM

Dear Specialists,

TREND MICRO AND AVG found viruses named

JAVABYTEVER.R
of type JAR.

Trend-Micro removed it but AVG found two instances and said that the file could not be healed as it was in the archive.

Is there anything else I need to do to ensure this virus is removed for sure or can i trust Trend Micro?
I am running full scan agan to make sure it is gone and wll post the result here.

Thank you for your help and reccomendations

Darren De Wilde

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#2 quietman7

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Posted 24 March 2006 - 11:12 AM

This is actually a method to exploit a security vulnerability in the Microsoft Virtual Machine that is stored in the java cache as a java-applet. The vulnerability arises as the ByteCode verifier in the Microsoft VM does not correctly check for the presence of certain malformed code when a java-applet is loaded. Attackers can exploit the vulnerability by creating malicious Java applets and inserting them into web pages that could be hosted on a web site or sent to users as an attachment.

To read more about this issue see here.

AVG will find Java/ByteVerify but cannot get rid of them. If you have the Java-Plugin installed, then deleting them from the Java cache will eliminate the problem. If you don't have the Java-Plugin installed then just delete the files manually.

Clear the Java Runtime Environment (JRE) cache. To do this:
  • Click Start > Control Panel.
  • Double-click the Java icon in the control panel.
    -The Java Control Panel appears.
  • Click "Settings" under Temporary Internet Files.
    -The Temporary Files Settings dialog box appears.
  • Click "Delete Files".
    -The Delete Temporary Files dialog box appears.
    -There are three options on this window to clear the cache.
    • Delete Files
    • View Applications
    • View Applets
  • Click "OK" on Delete Temporary Files window.
    -Note: This deletes all the Downloaded Applications and Applets from the cache.
  • Click "OK" on Temporary Files Settings window.
  • Close the Java Control Panel.
You can also view these instructions along with graphics here.

VERIFY your JAVA Software Installation & Version here.
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#3 Darren De Wilde

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Posted 24 March 2006 - 11:22 AM

QuietMan7,
Thank you for your help and assistance.
I followed your advice.
:-)
Darren De Wilde

#4 quietman7

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Posted 24 March 2006 - 11:31 AM

Your welcome Darren.
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