alert tcp $EXTERNAL_NET 80 -> $HOME_NET any (msg:"ET DELETED Kelihos p2p traffic detected via byte_test CnC Response"; flow:established,from_server; flowbits:isset,ET.Kelihos-P2P; byte_extract:2,2,kelihos.p2p; byte_test:2,=,kelihos.p2p,6; byte_test:2,=,kelihos.p2p,10; byte_test:2,=,kelihos.p2p,14; byte_test:2,=,kelihos.p2p,18; byte_test:2,=,kelihos.p2p,22; byte_test:2,!=,kelihos.p2p,0; byte_test:2,!=,kelihos.p2p,4; byte_test:2,!=,kelihos.p2p,8; byte_test:2,!=,kelihos.p2p,25; classtype:command-and-control; sid:2017614; rev:2; metadata:created_at 2013_10_18, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)