Versions (4)
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Rev: 5 • May 7, 2015, 12:00 PMET EXPLOIT_KIT CottonCastle/Niteris EK Receiving Payload May 7 2015
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT CottonCastle/Niteris EK Receiving Payload May 7 2015"; flow:established,to_client; http.content_type; bsize:22; content:"application/postscript"; fast_pattern; http.header; content:"Cache-Control|3a 20|no-cache,no-store,max-age=0,must-revalidate|0d 0a|"; content:"Content-Disposition|3a 20|inline|3b| filename="; pcre:"/^[a-z]{10}\.[a-z]{3}\r?$/Rm"; classtype:exploit-kit; sid:2021064; rev:5; metadata:created_at 2015_05_07, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_05;)
May 7, 2015, 12:00 PM
Mar 5, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Mar 19, 2026, 9:34 PM
rules/emerging-exploit_kit.rules