alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MSIL/GX Stealer/GravityRAT Uploading File"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php?VALUE=2&Type="; fast_pattern; content:"&SIGNATUREHASH="; distance:0; http.header_names; to_lowercase; content:!"|0d 0a|accept"; content:!"|0d 0a|user-agent|0d 0a|"; content:!"cache"; reference:md5,ec629f648434fc3d17e9561532d038c8; reference:url,blog.talosintelligence.com/2018/04/gravityrat-two-year-evolution-of-apt.html; classtype:trojan-activity; sid:2025541; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_04_26, deployment Perimeter, malware_family GravityRAT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_26;)