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Which of the following viruses tries to hide from anti-virus programs by actively altering and corrupting the chosen service call interruptions when they are being run?
Cavity Virus
Tunneling Virus
Polymorphic Virus
Stealth Virus
A tunneling virus launches itself under anti-virus programs and then works by going to the operating system’s interruption handlers and intercepting them, thus avoiding detection. Interception programs, which remain in the background of an operating system and catch viruses, become disabled during the course of a tunneling virus.
Some anti-virus programs do find the malicious code attached to tunnel viruses, but they often end up being reinstalled under the tunneling virus. To combat this, some anti-virus programs use their own tunneling techniques, which uncover hidden viruses located within computer memories.
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