do a search and get a copy of NetCat:
http://www.atstake.com/research/tool...ork_utilities/
run it like this:
echo GET/http1.0 \n\n |nc -v -n <ipaddress> 80
and try:
echo quit |nc -vv -n <ipaddress> 80,81,82,119,389,1002,1080,1720
you might get some usefull info on the ports
as you said a telnet server is not a stadard feature of a win (9x at least) machine but neither is a web server. software has been added to it that's keeping those ports open. first you have to find out what services are doing that. Is you can get a reply using NetCat (telnet is very awkard for this kind of thing) maybe we can figure a way to get a copy of NC running on the remote machine and give you a command prompt. if the machine has not been administered to in a while there might be some major holes.
if it transfers info over an isdn what is it doing being connected to the internet?
