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Question:
Louis is responsible for network security at his company. He has discovered behavior on one computer that certainly appears to be a virus. He has even identified a file he thinks might be the virus. However, using three separate antivirus programs, he discovers that none can detect the file. Which of the following is MOST LIKELY to be happening?
A
The computer has a zero-day exploit.
explanation
Zero-day exploits are new, and they are not in the virus definitions for the antivirus (AV) programs. This makes them difficult to detect, except by their behavior. RATs, worms, and rootkits are more likely to be detected by AV programs.
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