If you want to see if a machine is running LANMAN authentication,its in the registry, I think it varies from NT to 2000/XP but in 2k and XP in can be set in local security policy>security settings>local policies>security options Lanman auth level. I believe the levels are 1-5 in the registry. If youre not on the box but on the network you could also attempt a LANMAN authentication and sniff the exhange. I think the LM is some mickey mouse encryption and the NTLM is MD4 and NTLMv2 is MD5 (I'm not sure about those though)


-Maestr0

EDIT: I dont know if LC4 will do NTLMv2, I dont think so, if thats what your trying to crack it probably isnt going to happen the v2 is alot better than the previous incarnations which were pretty easy.