alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE NanoCore RAT CnC 28"; flow:established,to_server; content:"|48 00 00 00 ab 15 a7 82 71 a5 05 db|"; depth:12; reference:md5,db4aac6e6684a810f4dda2429cce9c7a; reference:url,medium.com/@the_abjuri5t/nanocore-rat-hunting-guide-cb185473c1e0; classtype:trojan-activity; sid:2046918; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_11_17, deployment Perimeter, deprecation_reason Age, malware_family NanoCore, confidence High, signature_severity Major, updated_at 2024_05_06, reviewed_at 2024_05_06, former_sid 2845509;)