alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible Heliconia Noise Landing Page Response"; flow:established,to_client; http.cookie; content:"wp_blog|3a 20|1|0d 0a|"; fast_pattern; pcre:"/^[a-zA-Z]{16}\x3a\x20[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$/"; reference:url,blog.google/threat-analysis-group/new-details-on-commercial-spyware-vendor-variston/; classtype:trojan-activity; sid:2041657; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_12_01, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_01;)