alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE StormKitty Download Request With Minimal Headers"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/StormKitty/stub"; fast_pattern; http.host; content:"raw.githubusercontent.com"; bsize:25; http.header_names; content:"|0d 0a|Host|0d 0a 0d 0a|"; bsize:10; reference:url,twitter.com/suyog41/status/1647965508963119104; reference:md5,9bec6e35675d3581a3fa59af2533cb13; classtype:trojan-activity; sid:2044965; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_17, deployment Perimeter, deployment SSLDecrypt, malware_family StormKitty, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_17;)