Rule:--Sid:551--Summary:This event is generated when network traffic that indicates Napster is being used. This is a Peer-to-Peer (P2P) application.--Impact:Possible policy violation. The use of Napster may be prohibited by corporate policy in some network environments. --Detailed Information:This event indicates that the Napster is being used on the protected network.Peer-to-Peer applications may also be used as a vector to transfer worms and viruses past Anti-Virus defenses onto a protected network.--Affected Systems:All systems using Napster--Attack Scenarios:This is a possible policy violation, it may be that Napster has been installated on a client host.Peer-to-Peer clients can be used to transmit confidential corporate information out of the protected network.--Ease of Attack:Simple.--False Positives:None known.--False Negatives:None known.--Corrective Action:Disallow the use of Napster on the protected network and enforce or implement an organization wide policy on the use of Napster.--Contributors:Sourcefire Vulnerability Research Team--Additional References:--