alert http1 $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Golang Easy Stealer CnC Response"; flow:established,to_client; flowbits:isset,ET.easystealer; http.response_line; bsize:28; content:"HTTP/1.1 666 status code 666"; fast_pattern; reference:url,twitter.com/Jane_0sint/status/1674425418429112329; reference:md5,731ed24011df3a33fe5d3765bf424b0c; classtype:trojan-activity; sid:2046691; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_06_29, deployment Perimeter, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_03, reviewed_at 2024_01_26; target:dest_ip;)