Versions (3)
Version DetailsCurrent
Rev: 10 • Aug 18, 2011, 12:00 PMET MALWARE User-Agent in Referer Field - Likely Malware
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE User-Agent in Referer Field - Likely Malware"; flow:established,to_server; http.referer; content:"Mozilla/4.0|20|"; startswith; classtype:trojan-activity; sid:2013423; rev:10; metadata:created_at 2011_08_18, confidence Medium, signature_severity Major, updated_at 2020_12_22;)
Aug 18, 2011, 12:00 PM
Dec 22, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules