Debian shadowfile and hashcat CUDA

[termito]

I will test/crack my shadowfile with backtrack, how can I do this?

1. What Hashtype is this shadow on Linux Debian?
example (modified)
kare:On6ZrLf4xHOpM:11761::::::

2. I use backtrack and CUDA.
Is this possible without wordlist to crack it via Bruteforce


Thanks