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A computer program that can run independently, can propagate a complete working version of itself onto other hosts on a network, and may consume computer resources destructively.
NIST SP 800-82 Rev. 2 under Worm from RFC 4949
A self-replicating program that propagates itself through a network onto other computer systems without requiring a host program or any user intervention to replicate.
NIST SP 800-28 Version 2 under Worm
Write-Once Read Many. Also see CD-R.
NIST SP 800-88 Rev. 1 under WORM
A self-replicating, self-propagating, self-contained program that uses networking mechanisms to spread itself. See Malicious Code.
NIST SP 800-12 Rev. 1 under Worm from