alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED Win32/TrojanDownloader.Agent.GEM Maldoc Remote Template Request M1"; flow:to_server,established; http.method; content:"GET"; http.uri; content:"/ACMS/"; fast_pattern; content:"?"; distance:16; within:10; pcre:"/[a-z0-9]{8}\/.*\?[a-z0-9]{3,10}=[a-z0-9]{8,11}$/Ui"; reference:url,mp.weixin.qq.com/s/kcIaoB8Yta1zI6Py-uxupA; classtype:trojan-activity; sid:2035901; rev:4; metadata:attack_target Client_Endpoint, created_at 2022_04_12, deployment Perimeter, former_category MALWARE, malware_family Lazarus, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;)