Win2Ban is a security application designed to protect web servers from malicious attacks. It works by automatically banning IP addresses that are identified as being malicious or attempting to access restricted resources. It uses a variety of techniques to identify malicious IPs and then blocks them, preventing further access. It also allows users to customize the rules that govern when an IP should be banned, allowing them to customize their security settings. Win2Ban is a great tool for website owners to protect their site from malicious attacks.
The discontinued software has been established open source and has been abandoned by the main developer. It looks like a very good detector but fails to stop attacks successfully. When I have it set to block IP addresses after 5 failed attempts, I should not see multiple entries showing 300 attempts with the same IP addresses.