alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Spartan EK Secondary Flash Exploit DL"; flow:established,to_client; http.header; content:"|43 6f 6e 74 65 6e 74 2d 44 69 73 70 6f 73 69 74 69 6f 6e 3a 20 69 6e 6c 69 6e 65 3b 20 66 69 6c 65 6e 61 6d 65 3d 0d 0a|"; fast_pattern; file.data; content:"|3c 74 6f 70 70 69 6e 67 73 3e|"; reference:url,www.mysonicwall.com/sonicalert/searchresults.aspx?ev=article&id=854; classtype:exploit-kit; sid:2021762; rev:4; metadata:created_at 2015_09_12, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_05;)