alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MSIL/PSW.Discord.AIY CnC Exfil"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/api/v9/users/"; startswith; http.host; content:"discord.com"; http.user_agent; content:"kath"; bsize:4; http.header_names; content:"content-type|0d 0a|user-Agent|0d 0a|Authorization|0d 0a 0d 0a|"; bsize:43; fast_pattern; reference:md5,2ed86e80ea9b4b95b3e52ed77ea6c401; reference:url,cloudsek.com/yourcyanide-an-investigation-into-the-frankenstein-ransomware-that-sends-malware-laced-love-letters/; classtype:trojan-activity; sid:2037746; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_12, deployment Perimeter, deployment SSLDecrypt, deprecation_reason Age, malware_family MSIL_PSW_Discord_AIY, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_12_02, reviewed_at 2024_12_02;)