In contrast, worms don't require the activation of their host file. Only after the host file is activated, can the virus run, executing malicious code and replicating to infect other files on your system. When the host file is accepted or loaded by a target system, the virus remains dormant until the infected host file is activated. Viruses are often attached or concealed in shared or downloaded files, both executable files-a program that runs script-and non-executable files such as a Word document or an image file. Worms do not require activation-or any human intervention-to execute or spread their code. ![]() ![]() ![]() ![]() The primary difference between a virus and a worm is that viruses must be triggered by the activation of their host whereas worms are stand-alone malicious programs that can self-replicate and propagate independently as soon as they have breached the system.
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