Back too the new virus. I like the name backdoor virii. I think it should last longer then 48 hours. Each time the local host changes the pwd to get it back you go to the software menu were all the viriis are, and click the collect (or an other name instead of collect) then you get the password. That way the host can put a sniffer virii on his own server to track it.
As has been mentioned, that's not enough.
1) As soon as I get in, I delete logs, and AV any sniffer good enough to see me (IP blockers are way better than Sniffers right now)
2) Then I delete you Log Deleter
3) Then your Spyware AV.
4) And upload/install the Back door.
At this point, your only hope is to figure out when I sleep, and do everything while I sleep. As soon as I catch any processes on you, I kill them. I clog your Bandwidth with downloads and Virii. I clog your processor with more virii.
Checkmate.
When it gets really dangerous is if I can build a bot to kill everything it can on your server every couple minutes. Now I can even sleep knowing you are all but dead.