What exactly does Avast do when protecting against botnets?

There’s an option “Protect against botnets” in the Web Shield.

Could anyone explain in simple enough terms, what exactly does that option make Avast do?

Considering, that if Avast can catch viruses and prevent connections to malicious websites even with that option being disabled,
I’m not sure what it is exactly and why do I need it to be on?

A more clear explanation of what will be happening on computer specifically with that option on or off would help people better realize if they need it on or not.

And while at it, here’s also a similar question about Rootkit and Exploit protection.

Those act like separate shields, and I’m not sure I’m not sacrificing too much of my computer resources and that they don’t wear down my HDDs by constantly scanning them (I prefer manual occasional scans and a basic File Shield and Web Shield running for an optimal protection without too much resources sacrificed).

What exactly the Rootkit and Exploit protection shields do? Specifically.

If File Shield can prevent me infecting my computer by running a malicious file, and Web Shield can stop the malicious site and scripts,
then how would I get infected with Rootkits (if I understand that term correctly)?

Understanding what those functions actually do, could also allow to troubleshoot any possible conflicts or issues, while running Avast.

https://forum.avast.com/index.php?topic=251675.msg1588114#msg1588114

So, basically it acts like a small Firewall, that blocks connections between some program on my computer and some mailicious server.

Did I get it right?

Yep.

Thank you for your help! :slight_smile:

You’re welcome.