Scrapper/grabber specifique

Hello,

I need a little software to run on a PC (windows) to allow me to :

0 - browse a specific website
1 - log with specific credential : I can be log before but it would be better if scrapper can log by himself
2 - browse some specific page
3 - select some data in html page (structured data) to save in a csv and download a file attached to each html page
4 - handle pagination
5 - handle a list of link allreay seen and not be browsed again

I allready have a software like this with .net code but it doesn"t work abymore because the website changed his structure and my developer left :-)

we can build a new one in other technology.

I need specific answer, not a copy/paste of your last projects won :-)