alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Kimsuky Related Maldoc Retrieving Template (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php?id=1"; endswith; fast_pattern; http.user_agent; content:"|3b 20|ms-office|3b 20|"; http.header_names; content:!"Referer"; reference:md5,51fa8bf006d80f5e140d84df313c650f; reference:url,twitter.com/ShadowChasing1/status/1465549330744414215; classtype:trojan-activity; sid:2034840; rev:3; metadata:attack_target Client_Endpoint, created_at 2021_12_23, deployment Perimeter, malware_family Kimsuky, performance_impact Moderate, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_25, reviewed_at 2023_08_22;)