From the doc: 'Utility for cracking password
protected Windows 95/98/ME shares. xIntruder
exploits vulnerability in SMB implementation on
these operating systems, which allows for very
effective collection of passwords (any password in
local network less than one minute, in the
internet less than 10 minutes), originally
discovered by www.nsfocus.com. xIntruder was
created in the development possess of the project
xSHaReZ 2 and is recommended to be used in
conjunction with xSHaReZ 2.'