How Antivirus software(virus scanner) is generated? What all tools/programming languages/Consepts you need to built one?

Answer 1

A) what do you mean “generated”?
2) This is a REALLY vague question.
Third) If you want to build a security tool like this, you need to know what your purpose is before you can ask what language to build it in. For example, if I want to build a FUD malware scanner, I should probably know a low-level language and likely some assembly to build a scanner that can check bios and firmware for persisting malware. If I want to build a scanner that scans a website for XSS vulns, then I’d have a lot more options to build this in either python, php, javascript, java, etc., depending on where I’m launching the scan and what the system allows me to run these scans against. If I’m on a server building this, I’ll have to build it in a language that server allows or pull in outside resources to get the job done (assuming I have those permissions or can obtain those permissions). As I said, vague question.

Answer 2

I would think that you can use any general purpose language like C++ or C# to write a virus scanner.