alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/BazarLoader Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; http.header; header_lowercase; content:"user-agent|3a 20|Win|0d 0a|"; fast_pattern; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:url,thedfirreport.com/2021/12/13/diavol-ransomware/; reference:md5,c70d6690d2d6fcead1e752195985fc54; classtype:trojan-activity; sid:2034752; rev:5; metadata:attack_target Client_Endpoint, created_at 2021_12_16, deployment Perimeter, malware_family BazarLoader, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_20;)