Please review this document on Cisco.com
http://www.cisco.com/warp/public/63/ts_codred_worm.shtml
The focus of this board is Content Delivery Networking (http://www.cisco.com/go/cdn) however there are a number of professionals online who may be able to assist you. We are always considering additional forums for such topics and I will make a note of your post.
If you don't get a suitable response to your post, you may wish to review our resources at the online Technical Assistance Center (www.cisco.com/tac) or speak with a TAC engineer. You can open a TAC case online at http://www.cisco.com/tac/caseopen
If anyone else in the forum has some advice, please reply to this thread. Thank you for posting.