Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Unknown Malvertising EK Landing Aug 22 2014"; flow:established,from_server; file_data; content:"|5d 2f 67 2c 27 27 29 2e 73 75 62 73 74 72 28|"; content:"|5d 2f 67 2c 27 27 29 2e 73 75 62 73 74 72 28|"; within:500; content:"ActiveXObject"; pcre:"/^\s*?\(\s*?[\x22\x27](?!AgControl\.AgControl)[^\x22\x27]*?A[^\x22\x27]*?g[^\x22\x27]*?C[^\x22\x27]*?o[^\x22\x27]*?n[^\x22\x27]*?t[^\x22\x27]*?r[^\x22\x27]*?o[^\x22\x27]*?l[^\x22\x27]*?\.[^\x22\x27]*?A[^\x22\x27]*?g[^\x22\x27]*?C[^\x22\x27]*?o[^\x22\x27]*?n[^\x22\x27]*?t[^\x22\x27]*?r[^\x22\x27]*?o[^\x22\x27]*?l[^\x22\x27]*?[\x22\x27]\s*?\.\s*?replace\s*?\(/Rsi"; reference:url,malware-traffic-analysis.net/2014/08/22/index2.html; reference:url,www.malwaresigs.com/2013/10/14/unknown-ek/; classtype:exploit-kit; sid:2018988; rev:2; metadata:created_at 2014_08_23, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)