alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"MALWARE [PTsecurity] RevCode SSL connection pkt checker #1"; flow:established, to_server; content:"|1703|"; depth:2; content:"|00D0|"; distance:1; within:2; fast_pattern; stream_size:server, >,1310; stream_size:server, <,7014; stream_size:client, >,646; stream_size:client, <,1460; flowbits:noalert; flowbits:isset, FB375151_0; flowbits:unset, FB375151_0; flowbits:set, FB375151_1; classtype:trojan-activity; metadata:created_at 2017_10_27; reference:url, github.com/ptresearch/AttackDetection; sid:11002166; rev:1;)