alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Bazaloader Variant Activity"; flow:established,to_server; http.method; content:"HEAD"; http.uri; bsize:10; content:"/act/pause"; http.header; header_lowercase; content:"update|3a 20 2f|act|2f|pause|0d 0a|"; fast_pattern; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|user-agent|0d 0a|"; content:!"|0d 0a|accept"; reference:md5,1c3dde885aa3cc2d7c24b7e13cccc941; reference:url,twitter.com/James_inthe_box/status/1319298609255383040; classtype:trojan-activity; sid:2031084; rev:3; metadata:attack_target Client_Endpoint, created_at 2020_10_22, deployment Perimeter, deployment SSLDecrypt, malware_family BazaLoader, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_30;)