DarkComet-RAT v4.2 fwb (Firewall bypass) is firewall bypass. It will inject to web browsers and bypass firewall rules. Targets are in this order : Firefox, Opera, Chrome, Safari, Internet Explorer and Explorer if all fails (normally never) then it runs normally. Notice now you can use remote computers as SOCKS5 proxies. New process manager GUI and more user friendly. New password recovery using nirsoft tools (plugins like)
Source: https://thehackernews.com/2011/10/darkcomet-rat-v42-fwb-firewall-bypass.html