Tekkit Session Stealer?

Since Session stealing was patched in 1.3 it will still work in tekkit right ? If it can someone make a working Session Stealer since the ones for 1.2.5 don't send the mod list check which forge requires before joining a server.

I believe that most people have some sort of protection for it now, even in Tekkit. It's still worth trying if it works, though.