alert icmp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL DELETED Stacheldraht client check skillz"; icmp_id:666; itype:0; content:"skillz"; reference:arachnids,190; classtype:attempted-dos; sid:2100229; rev:6; metadata:created_at 2010_09_23, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)