Poss DOS problem

Ok think I may have had a DOS attack on my remote Linux Server
I can telnet as a normal user, but cannot su to root .. it just hangs after I enter the password (Control+C restores the prompt - but not as root)

I can access Webmin as root

I have checked running processes in telnet and found sh*t loads of Cron processes - like this:

Code:

root 6655 0.0 0.0 1392 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6656 0.0 0.0 1388 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6657 0.0 0.0 1392 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6874 0.0 0.0 1388 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6875 0.0 0.0 1388 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6876 0.0 0.0 1392 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6877 0.0 0.0 1392 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6881 0.0 0.0 1388 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6882 0.0 0.0 1392 0 ? SW Oct23 0:00 /USR/SBIN/CRON root 6883 0.0 0.0 1388 0 ? SW Oct23 0:00 /USR/SBIN/CRON

there are at least 2 dozen of these - all with cuncurrent PID's (well close enough!)

Cannot kill the processes in Telnet as i cannot logon as root..
Cannot kill the processes in Webmin, nor stop the Cron job - it times out

Due to the server's location - some 330 Miles away.. I cannot get to the console to login locally as root
I could get a member of my family to reboot the server, but then the Cron job will just start again

Anyone know how i can get round this?