Which type breaches web browser security by injecting client-side scripts into a web page?

Which type breaches web browser security by injecting client-side scripts into a web page?

• A. Web scripting virus
• B. Shell virus
• C. File extension viruses
• D. Zombie

Answer: (A)

The key idea is malware that targets the browser by running or injecting scripts inside the page you’re viewing. A web scripting virus is designed to insert malicious client-side scripts (like JavaScript) into web pages, or into pages served through compromised sites or ads, so the code executes in the victim’s browser. Once those scripts run in the browser, they can access session information, cookies, or perform actions on the page without the user’s explicit consent, effectively breaching browser safety by exploiting the trusted scripting environment inside the browser. This fits the description of injecting client-side scripts into a web page and is distinct from the other types: a shell virus focuses on creating a command shell or backdoor on the operating system; file extension viruses manipulate file types to trick users or spread, not browser scripting; a zombie refers to a compromised machine used in botnets, not specifically to injecting scripts into a page. So the phenomenon described is best captured by the concept of a web scripting virus.

The key idea is malware that targets the browser by running or injecting scripts inside the page you’re viewing. A web scripting virus is designed to insert malicious client-side scripts (like JavaScript) into web pages, or into pages served through compromised sites or ads, so the code executes in the victim’s browser. Once those scripts run in the browser, they can access session information, cookies, or perform actions on the page without the user’s explicit consent, effectively breaching browser safety by exploiting the trusted scripting environment inside the browser.

This fits the description of injecting client-side scripts into a web page and is distinct from the other types: a shell virus focuses on creating a command shell or backdoor on the operating system; file extension viruses manipulate file types to trick users or spread, not browser scripting; a zombie refers to a compromised machine used in botnets, not specifically to injecting scripts into a page. So the phenomenon described is best captured by the concept of a web scripting virus.