alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/RedEnergy System Information Retrieval Attempt"; flow:established,to_server; http.method; content:"GET"; http.user_agent; content:"User|3a 20|"; fast_pattern; startswith; content:"|20|AV|3a 20|"; distance:0; content:"|20|STM|3a 20|"; distance:0; content:"|20|RSM|3a 20|"; distance:4; content:"|20|RZ|3a 20|"; distance:4; reference:url,www.zscaler.com/blogs/security-research/ransomware-redefined-redenergy-stealer-ransomware-attacks; reference:md5,642dbe8b752b0dc735e9422d903e0e97; classtype:trojan-activity; sid:2046626; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_06_22, deployment Perimeter, deployment SSLDecrypt, malware_family RedEnergy, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_06_22; target:src_ip;)