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Rev: 2 • Apr 9, 2020, 12:00 PMET MALWARE Possible Kimsuky APT Connectivity Check via Document
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible Kimsuky APT Connectivity Check via Document"; flow:established,to_server; http.header; content:".mireene.com|0d 0a|Content-Length|3a 20|0|0d 0a|"; fast_pattern; http.user_agent; content:"Microsoft Office Protocol Discovery"; classtype:targeted-activity; sid:2029851; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_09, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_09;)
Apr 9, 2020, 12:00 PM
Apr 9, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 19, 2025, 10:35 PM
rules/emerging-malware.rules