Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Grandoreiro CnC Activity (iso)"; flow:established,to_client; content:"|2e|iso|22 3b 0d 0a 0d 0a|VUVzREJCUUFBQUFJQU5sRUJWSHBLeVltQlY0OEFBQzh6QXNRQ"; fast_pattern; http.stat_code; content:"200"; reference:url,app.any.run/tasks/aa328aa8-e521-429f-9c42-9583f7e87c76/; reference:md5,2cb39126dd8f22ffdf2ad2b679405653; classtype:command-and-control; sid:2030808; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_08_27, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_27;)