alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL SCAN cybercop os PA12 attempt"; flow:stateless; flags:PA12; content:"AAAAAAAAAAAAAAAA"; depth:16; reference:arachnids,149; classtype:attempted-recon; sid:2100626; rev:9; metadata:created_at 2010_09_23, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)