Versions (4)
Version DetailsCurrent
Rev: 6 • Dec 19, 2016, 12:00 PMET MALWARE JS/WSF Downloader Dec 08 2016 M4
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE JS/WSF Downloader Dec 08 2016 M4"; flow:from_server,established; flowbits:isset,et.IE7.NoRef.NoCookie; http.content_type; content:"image|2f|"; depth:6; file.data; content:"MZ"; within:2; byte_jump:4,58,relative,little; content:"PE|00 00|"; fast_pattern; distance:-64; within:4; classtype:trojan-activity; sid:2023672; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_12_19, deployment Perimeter, malware_family JS_WSF, confidence High, signature_severity Major, updated_at 2023_03_10;)
Dec 19, 2016, 12:00 PM
Mar 10, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules