Malware that changes its binary pattern on specific dates at specific times to avoid detection is known as a (n):
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A. B. C. D.C.
The correct answer is C. polymorphic virus.
A polymorphic virus is a type of malware that changes its code (binary pattern) every time it replicates itself, making it difficult to detect using traditional signature-based antivirus software. The code changes in such a way that it retains its original function while making it look like a new and unique strain of malware.
In addition, some polymorphic viruses are designed to change their code on specific dates or times, making them even more challenging to detect and remove. These viruses can be programmed to lay dormant for a period and then activate themselves, making them difficult to trace back to their original source.
An armored virus (A) is a type of malware that is designed to be resistant to antivirus software by using various techniques such as encryption and code obfuscation. A logic bomb (B) is a type of malware that is triggered by a specific event, such as a certain date or time, or by a specific action taken by a user. A Trojan (D) is a type of malware that disguises itself as a legitimate program but has malicious code hidden inside it, allowing it to take control of a system or steal sensitive data.
In summary, a polymorphic virus is a type of malware that changes its code every time it replicates, and some variants can also change their code on specific dates and times to avoid detection.