How does AVG distinguish a legitimate web calculator from a potentially suspicious script?

AVG Internet Security / AVG Antivirus AVG Antivirus / AVG Internet Security for PC
1

Hello,

I’m interested in understanding how AVG evaluates modern web applications that perform most of their processing directly in the browser.

Many websites today rely heavily on client-side JavaScript to process user input and generate results instantly without sending frequent requests to the server.

One example I was reviewing is:

calcolaascendente(.)it

In this case, users enter multiple values and the result is generated dynamically within the page using browser-side processing.

My question is more technical than support-related:

  • Does AVG analyze the behavior of JavaScript running in the browser?

  • Can a website that performs a large number of client-side calculations affect how AVG evaluates its reputation or trustworthiness?

  • Are there specific indicators AVG uses to differentiate a legitimate web calculator from a potentially unwanted script?

I’m not experiencing a security issue with this particular website. I’m simply interested in learning more about how AVG’s protection layers assess modern interactive web applications.

Any insight would be appreciated.

Thank you.

2

Interesting question. Modern web apps can run a lot of JavaScript locally without that being suspicious by itself. I’d be interested to know whether AVG mainly relies on factors such as code behavior, reputation, downloads, network activity, and known malicious patterns rather than simply the amount of client-side processing.

It would also be helpful to understand how browser-based protection handles legitimate calculators and other interactive tools that execute substantial JavaScript entirely on the client side.