Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Generic Webshell Accessed on External Compromised Server"; flow:established,to_client; file.data; content:"MARIJUANA</title>"; fast_pattern; content:"|e2 80 94 20|DIOS|20 e2 80 94 20|NO|20 e2 80 94 20|CREA|20 e2 80 94 20|NADA|20 e2 80 94 20|EN|20 e2 80 94 20|VANO|20 e2 80 94|"; distance:0; classtype:web-application-attack; sid:2034249; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_10_25, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_25;)