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The Battle Against Viruses on the CERN NICE Network

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The Battle Against Viruses on the CERN NICE Network Powered By Docstoc
					The Battle Against Viruses on the CERN NICE Network
CHARAN

Viruses - the problem
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There are an estimated 45,000 viruses “in the wild” today Growing at a rate of 6 new viruses per month

Virus History and Evolution
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Simple Viruses
• Easiest to detect • User launches infected program, virus gains control of the PC and attaches itself to another program, then transfers control back to the host program which functions normally • Anti-virus software need only look for a “signature” (sequence of bytes) to detect

Virus History and Evolution
Anti-virus vendors developed generic decryption techniques that “trick” polymorphic viruses into revealing themselves using a virtual computer

Most common viruses seen on the CERN network
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Various Word Macro viruses Happy99 Worm Win95 CIH / Chernobyl Hacking tools - NetBus, BackOrifice, etc...

Virus Protect Administrator console

Notification of a virus on a client

Virus Hoaxes
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Not dangerous - Only serve to waste bandwidth and people’s time http://www.symantec.com/avcenter/venc contains a virus encyclopedia

Statistics
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35-40 NT and Netware servers and 4000 clients running real-time and nightly scheduled scans Approximately 5 new clients infected per week

Still some problems
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Don’t have control over private servers installed by experiments (can only strongly RECOMMEND ) Some users disable real-time scanning LANDesk doesn’t clean open files or trojans which need DOS level intervention Symantec/Norton bought Intel/LANDesk so need to upgrade or find a new product

Conclusions
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Viruses are getting more and more sophisticad and malicious Sites must have a good commercial product You’ll never be completely safe...


				
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posted:11/14/2009
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Description: There are an estimated 45,000 viruses “in the wild” today Growing at a rate of 6 new viruses per month