Versions (3)
Version DetailsCurrent
Rev: 2 • Jun 4, 2019, 12:00 PMET MALWARE ICEFOG-P Variant CnC Checkin M1
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE ICEFOG-P Variant CnC Checkin M1"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".jpg"; pcre:"/_[A-F0-9]{12}\.jpg$/i"; http.request_body; content:"H|00|O|00|S|00|T|00 20 00|N|00|A|00|M|00|E|00 3a|"; depth:19; fast_pattern; reference:url,speakerdeck.com/ashley920/into-the-fog-the-return-of-icefog-apt; classtype:command-and-control; sid:2027431; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_06_04, deployment Perimeter, malware_family ICEFOG_P, performance_impact Low, confidence High, signature_severity Major, tag APT, tag IceFog, updated_at 2020_08_31;)
Jun 4, 2019, 12:00 PM
Aug 31, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules