We keep getting hacked into. We have a Sonicwall firewall, 4 servers(2 public, 2 private;all static IPs), & dozens of user machines. The same server has been hacked into each time. At first it was a public server hosting a website. After some a few changes we ended up moving the website to a diff server and made the hacked server a private server. within the last few days, the server was hacked again. I ran a trend micro virus scan and found 12 instances of sluter.b. I think thats how the hacker got back in but im not sure. does anyone have any idea what i can do to prevent this in the future? or if sluter.b is even how he got back in? the hacker also created a whole bunch of folders, one inside of the other, and i cant delete them. I get an error message. The root folder he created has no name at all. please help me. ty.