How to make a antivirus program

[manhit45]

I am beginning to make a antivirus programs. Please tell me these basic :
1. What language should i have to use?
2. What database should i have to use?
3. Have you got any sample about sourcode of antivirus please send to me.
Thanks for any help ....!

[weirddemon]

Well, since you've posted this in the VB section, I assume you're thinking about making it in VB. If that's the case, I wouldn't. There's actually a bunch of information on VBF about people who have tried to create a VB Antivirus app and have pretty much failed. VB is an awesome language, but not really suited for this type of thing.

C++ is probably the best language to create an AV app in.

For the database, most AV apps usually create their own, if I'm not mistaken.

You won't really find any sample code for it. But, Google rarely fails me

[jmcilhinney]

The answer to the first question is NOT VB.NET. As such, the rest of the questions aren't really relevant because this is a VB.NET forum. There's really no way that you will be able to create a useful antivirus program unless you are at quite an advanced skill level and have lots of time, so if this is for anything else but interest then don't bother. You need to interact with the OS at a very low level, so you would use C/C++.

[ManZzup]

you can use VB but for signature scan only [that's possible i think]
but modern day Avs use behavior based, and after-loaded-memory scans [scan the memories on the memory ]
so these two are impossibl in vb