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Virus found in the Java cache directory


This article applies to:
  • Java version(s): 6.0

SYMPTOMS

Malicious applets have been discovered in the Java cache directory. Anti-virus programs have detected such malicious applets in the following directory:
C:\Documents and Settings\<username>\Application Data\Sun\Java\Deployment\cache\6.0\


CAUSE

Viruses found in this cache directory are not associated with the Java that was downloaded and installed on the system. A cache directory is a a temporary storage location. When the browser runs an applet or application, Java stores files into its cache directory for better performance.
Some examples of the virus reported in the cache directory:
  • Trojan.ByteVerify
  • Pdfjsc.CR
  • Uutecwv.class
  • Hieeyfc.class

SOLUTION

If you find one of these malicious applets on your computer, please use an anti-virus program to delete the applet, or you can clean the cache directory manually. Follow the below instructions to manually remove these malicious applets from the Java cache directory:

  1. From the Start button, select Control Panel.
  2. In the Control Panel, open the Java Control Panel.
  3. Click on Settings button under Temporary Internet Files.
  4. Click Delete Files button at the Temporary Files Settings window.
  5. Click on OK button at confirmation dialog.

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