alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"MALWARE [PTsecurity] Ozone RAT connection pkt#0"; flow:established, to_server; dsize:6; content:"|0000 00|"; fast_pattern; offset:2; depth:3; content:"|01|"; offset:0; depth:1; byte_test:1,>,0x06,1; byte_test:1,<,0xf0,1; stream_size:server, =,1; stream_size:client, =,7; flowbits:noalert; flowbits:set, FB582528_0; classtype:trojan-activity; metadata:created_at 2018_05_24; reference:url, github.com/ptresearch/AttackDetection; sid:11003004; rev:1;)