[rvltr]

might try this one. not sure if it will work or not
http://www.1337day.com/exploits/15065
didnt work on the few i have with the same kernel but you may have better luck

[torque59]

I would recommend to use weevely stealth and simple to use

Also are u sure ur router doesnt support port forwarding.

If nt ill help regarding the port forwarding it is easy if it supports