alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Nekill Checkin"; flow:established,to_server; content:"?v="; http_uri; content:"&mid="; http_uri; content:"&r1="; http_uri; content:"&tm="; http_uri; content:"&av="; http_uri; content:"&os="; http_uri; content:"&uid="; http_uri; content:"&cht="; http_uri; content:"&sn="; http_uri; reference:url,blog.emergingthreatspro.com/2011/07/bot-of-day-nekilla.html; classtype:command-and-control; sid:2013260; rev:3; metadata:created_at 2011_07_13, malware_family Win32_Nekill, signature_severity Major, updated_at 2019_07_26;)