Thanks anyway for the answer, Mckv, but the original post was about the swf player of hdcast, not eucast.
I know that the eucast token is not hard to find.
Here is an example of a channel that is still hosted on Hdcast.org:
Code:
rtmpdump -r "rtmpe://46.246.124.24:1935/redirect" -a "redirect" -f "WIN 12,0,0,77" -W "http://77231864591d8245d027-dbd663cdd4719bbeb13e13f9ee6e6f1f.r39.cf5.rackcdn.com/bba.swf" -p "http://www.hdcast.org/embedlive2.php?u=BST15&vw=640&vh=460&domain=hdfoots.com" -y "BST15" -o "2014-04-11_06-22-53_BST15.flv"
I don't know what really happened, but fortunately now hdcast streams can be dumped again without the need of any "mysterious tokens".
So for the moment the hdcast issue seems solved