1. Symantec/
  2. Security Response/
  3. JS.Exception.Exploit.B


January 10, 2002
February 13, 2007 11:58:43 AM
Trojan Horse
Systems Affected:
CVE References:

JS.Exception.Exploit.B is an exploit which allows Java applets to run arbitrary code on unpatched systems. In many cases, the applet may perform simple actions, such as changing your Internet Explorer home page. It can also be programmed to run code to perform a mass mailing. It is an obfuscated version of JS.Exception.Exploit.

Microsoft has released a patch that closes the security vulnerability exploit. You can download the patch from the following Microsoft site:


For a comprehensive list of vulnerabilities, see the following Microsoft Web page:


Antivirus Protection Dates

  • Initial Rapid Release version January 17, 2002
  • Latest Rapid Release version May 30, 2007 revision 048
  • Initial Daily Certified version January 17, 2002 revision 041
  • Latest Daily Certified version May 30, 2007 revision 041
  • Initial Weekly Certified release date January 17, 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Dave Adamczyk

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