rule XOR_DDosv1 : DDoS { meta: author = "Akamai SIRT" description = "Rule to detect XOR DDos infection" strings: $st0 = "BB2FA36AAA9541F0" $st1 = "md5=" $st2 = "denyip=" $st3 = "filename=" $st4 = "rmfile=" $st5 = "exec_packet" $st6 = "build_iphdr" condition: all of them }