alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Ispen BADNEWS Fake User-Agent"; flow:established,to_server; http.user_agent; content:"UserAgent|3a|Mozilla/5.0(Windows|20|"; depth:30; fast_pattern; reference:md5,f974bb8a5b5220a061cb92a16fc6a1c6; reference:url,unit42.paloaltonetworks.com/unit42-patchwork-continues-deliver-badnews-indian-subcontinent/; classtype:targeted-activity; sid:2030361; rev:4; metadata:created_at 2016_06_03, malware_family Win32_Ispen, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_15;)