Rule History

alert udp any 53 -> $HOME_NET any (msg:"ET MALWARE Win32.Hyteod.acox Domain Generation Algorithm (DGA) Lookup NXDOMAIN Response"; byte_test:1,&,128,2; byte_test:1,&,1,3; byte_test:1,&,2,3; content:"|00 01 00 00 00 01|"; offset:4; depth:6; content:"|02|su|00|"; distance:53; within:4; content:"|32|"; distance:-55; within:1; pcre:"/^[a-z0-9]{50}/R"; threshold: type both, track by_src, count 3, seconds 60; classtype:trojan-activity; sid:2020741; rev:1; metadata:created_at 2015_03_25, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)