1. Computing & Technology

Stealth Virus

From , former About.com Guide

Definition:

Stealth viruses attempt to hide their presence to avoid detection. One method employed is to redirect calls made to the infected file. For example, the Brain virus, notorious for being the first PC virus in-the-wild, was also the first stealth virus. It infected boot sectors, hooking into INT13. If the virus were resident in memory, the boot sector would look normal.

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