Real time scanning- what's the best way to go?

From my scanty knowledge of scanners, I guess there are three main ways they implement real time scanning.

1- HD read/ write scanning( most common used by Antivirus products)
2- Memory scanning( like Boclean, not sure but I think there are other AS who scan memeory in real time but none of the AVs I think).
3- Scanning on execution( OA AVplus, not sure but I think there may be AS scanners who use this technique).

I will not discuss other real time scanning modules ATM( like WebScanner, E-mail, network, IM messenger scanning etc-- Avast ).

My impressions about these techniques:

- HD read/ write scanning- causes system slow down though vaiable from system to system and product to product

- Memory scanning- not sure about slow down but sure it takes CPU spikes

- On Execution scanning- least impact on system

Prsonally I will prefer my AV/AS to use on-execution real time scanning. That should be OK. It will give a good balance of security and speed. I can complement it with scheduled HD scans to detect any malware that is dormant on mys sytem.

I wish that all AVs give us an option to use On-Execution scanning in real time rather than traditional HD read/ write scanning.

What you guys/ gals think of it? Please post your comments. Also I need you to correct me if my understanding for real time scanning is wrong in any way.

Thanks

 

If you want free get Spyware Terminator if you want a pay for one get Superantispyware.

 

I think cheater just read thread title, not my post. I never asked for a product. It,s not the purpose of thread at all.

 

I don't use scanners anymore.
I remove any change, malware included, in my system partition during each reboot in less that 2 minuts, which means :
- removal of any known malware
- removal of any unknown malware
- removal of any malware of the future.
I use FirstDefense-ISR to make that possible, but most ISR-softwares do the same thing, although FDISR offers still more than the rest.

I still have a few security softwares, which are supposed to stop the execution of malware immediately, like Anti-Executable and DefenseWall. I use these because they don't need any signature updates.

 

Doesn,t u contadict urself? You are chosing none but if u are adding one, u are going for the extreme choice!

Also I think on-execution scanning( no.3) doesn,t let something go into memory practically.

U mean it does scan disk read/write in real time? I never read it before.

I agree but I was just discussing scanning method in general. Ofcourse there are many other variables that make a product better or worse!

 

Thread is not about what you use. I just wanted to discuss what technique is best for a real time scanner.

U are using one or not, it,s a different story.

 

Sorry, I can't handle such discussion due to total lack of knowledge. My experience with AE (= real-time scanner) is, that it slowed down my fast computer. First I thought it was malware, but it was AE.

 

I am not sure if AE scans disk read/ write or not?