alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Kimsuky Sending Encrypted System Information to CnC"; flow:established,to_server; http.method; content:"POST"; http.content_type; content:"WebKitFormBoundarywhpFxMBe19cSjFnG"; endswith; fast_pattern; reference:md5,92001e9cebec0f0f0ac2b7c7e04f017d; reference:url,vblocalhost.com/uploads/VB2020-46.pdf; classtype:command-and-control; sid:2031178; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_02_05, deployment Perimeter, malware_family Kimsuky, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_11_04;)