![]() Internet worms are often designed to exploit new security issues, and search for systems that haven’t installed current software or operating system security updates. Some worms have a phishing component that entices users to run the malicious code. Once downloaded, the worm takes advantage of a weakness in its target system or tricks a user into executing it. The worm is often transmitted via file-sharing networks, information-transport features, email attachments or by clicking links to malicious websites. ![]() Thrips (vectors of tospoviruses including Tomato Spotted Wilt Virus and. ![]() Viruses need a host computer or operating system. Northeastern Pine Sawyer Beetle Northern Corn Rootworm (includes Western. Worms often utilize large amounts of memory and bandwidth, so affected servers, networks and individual systems are often overloaded and stop responding.īut worms are not viruses. Worms cause damage similar to viruses, exploiting holes in security software and potentially stealing sensitive information, corrupting files and installing a back door for remote access to the system, among other issues. A worm virus is a malicious, self-replicating program that can spread throughout a network without human assistance. A worm virus is a malicious, self-replicating program that can spread throughout a network without human assistance.
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