alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Malicious VBS Sending System Information (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; endswith; http.request_body; content:"Cache=error&Sand="; startswith; fast_pattern; content:"&Data="; distance:0; content:"&Em="; distance:50; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:md5,ab97956fec732676ecfcedf55efadcbc; reference:url,asec.ahnlab.com/ko/33141/; classtype:trojan-activity; sid:2036211; rev:3; metadata:attack_target Client_Endpoint, created_at 2022_04_14, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_26;)