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Security Dictionary
Can't tell 'smtp' from 'snmp'? Find the precise meaning of these and hundreds of other security-related terms in our convenient and up-to-date Security Dictionary.
smurf
(I) Software that mounts a denial-of-service attack ("smurfing") by exploiting IP broadcast addressing and ICMP ping packets to cause flooding. (See: flood, ICMP flood.)

(D) ISDs SHOULD NOT use this term because it is not listed in most dictionaries and could confuse international readers.

(C) A smurf program builds a network packet that appears to originate from another address, that of the "victim", either a host or an IP router. The packet contains an ICMP ping message that is addressed to an IP broadcast address, i.e., to all IP addresses in a given network. The echo responses to the ping message return to the victim's address. The goal of smurfing may be either to deny service at a particular host or to flood all or part of an IP network.

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