possible hacking?

[adler at stephenadler.com (Stephen Adler)]

Guys, was checking to see what processes were running on my system for
some specific reason, and I ran across a bunch of processes which I've
never seen before and look very suspicious. Does anyone know what they
may be? I'm running Fedora Core 3. I'm worried that I've been hacked
into.

Cheers. Steve.

27502 pts/6    Sl     1:18 ./f -h 68.84.141 16 -u users -p pass -t 3 -c
30 -o log -d -k -C
27749 pts/6    S      0:00 /bin/sh ./s 63.200.9/16
27750 pts/6    Sl     2:01 ./f -h 63.200.9 16 -u users -p pass -t 3 -c
30 -o log -d -k -C
27957 pts/6    S      0:00 /bin/sh ./s 69.0.136/16
27958 pts/6    Sl     2:54 ./f -h 69.0.136 16 -u users -p pass -t 3 -c
30 -o log -d -k -C
 8039 ?        SNs    0:00 sshd: root at pts/10
 8044 pts/10   Ss     0:00 -bash
14554 pts/10   S+     0:00 /bin/sh ./s 212.0.0.0/8
14555 pts/10   Sl+    0:01 ./f -h 212.0.0.0 8 -u users -p pass -t 3 -c
30 -o log -d -k -C
1