alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Win32/StormKitty CnC Telegram Notification M2"; flow:established,to_client; http.response_body; content:"|7b 22|ok|22 3a|"; startswith; content:"|2c 22|result|22 3a 7b 22|message|5f|id|22 3a|"; content:"DevilCat|20 2d 20|Report|3a|"; fast_pattern; content:"|5c|nSystem|3a 20|"; content:"|5c|nAntivirus|3a 20|"; reference:url,twitter.com/suyog41/status/1647965508963119104; reference:md5,9bec6e35675d3581a3fa59af2533cb13; classtype:command-and-control; sid:2044964; rev:3; 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_12_13;)