strange file in /usr/bin

Hi there, i found a strange looking file in my /usr/bin directory... The file is called: 5n0r7. I'm running SuSE Pro 7.0. Maybe this is a trojan/backdoor program? I portscanned my machine with nmap and found Port 20011 open... Does anybody know about such an trojan? thanks, Jan [?][!] newtention technologies gmbh // rathausallee 72-76 // 22846 norderstedt mailto: jan@newtention.de // http://www.newtention.de phone: 040-5 54 45 89 - 3 // mobil: 0178-4777948 // fax: 040-5 54 45 89 - 9 ----- party, n.: A gathering where you meet people who drink so much you can't even remember their names.