alert tcp-pkt $HOME_NET any -> $EXTERNAL_NET [!8080,1024:] (msg:"ET MALWARE Fodcha Bot CnC Checkin"; flow:established,to_server; dsize:5; content:"|ee 00 00 11 ff|"; fast_pattern; reference:url,blog.netlab.360.com/fodcha-a-new-ddos-botnet/; classtype:command-and-control; sid:2035939; rev:2; metadata:attack_target IoT, created_at 2022_04_13, deployment Perimeter, malware_family Fodcha, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_06;)