Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Latrodectus Loader Related Activity (POST)"; flow:established,to_server; http.method; content:"POST"; http.content_type; content:"application/x-www-form-urlencoded"; bsize:33; http.user_agent; content:"Mozilla/4.0 (compatible|3b 20|MSIE 7.0|3b 20|Windows NT 5.1|3b 20|Tob 1.1)"; bsize:59; fast_pattern; http.header_names; content:!"Referer"; reference:url,medium.com/walmartglobaltech/icedid-gets-loaded-af073b7b6d39; reference:md5,f93f91aca8e20bb97f94c05e5dd839e7; classtype:trojan-activity; sid:2048735; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_10_23, deployment Perimeter, deployment SSLDecrypt, malware_family Latrodectus, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_15, reviewed_at 2023_10_23; target:src_ip;)