alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT ReverseLoader Base64 Payload Inbound M2"; flow:established,to_client; file.data; content:"Gd1NWZ4VEbsVGaT"; classtype:exploit-kit; sid:2020425; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2015_02_16, deployment Perimeter, malware_family ReverseLoader, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_24;)