FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Rootkit modifies the OS to make a backdoor. Attackers then use the backdoor to access the computer distantly. Most rootkits take advantage of software vulnerabilities to modify system files.

Detailed explanation-2: -The defining feature of rootkits is that they evade detection by masking themselves from the user and other software, including antivirus. Thus, the definition of a rootkit does not inherently specify what the malware actually does, only its strategy of hiding from users.

Detailed explanation-3: -Some of the most common types of Trojan virus include: Backdoor Trojans-This type of Trojan allows hackers to remotely access and control a computer, often for the purpose of uploading, downloading, or executing files at will.

Detailed explanation-4: -A rootkit is a type of malware designed to give hackers access to and control over a target device. Although most rootkits affect the software and the operating system, some can also infect your computer’s hardware and firmware.

Detailed explanation-5: -A backdoor virus or remote access Trojan (RAT) secretly creates a backdoor into an infected computer system that enables threat actors to remotely access it without alerting the user or the system’s security programs.