alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/NetDooka Framework RAT CnC Activity"; flow:established,to_server; content:"|e8 03 00 00 00 00 00 00 10 00 00 00|"; fast_pattern; startswith; content:"|90 01 00 00 66 00 00 00|"; distance:0; content:"|2d|"; distance:12; within:1; content:"|2d|"; distance:4; within:1; content:"|2d|"; distance:4; within:1; content:"|2d|"; distance:4; within:1; content:"|7c|"; distance:12; within:1; content:"|7c|"; distance:0; content:"|7c|"; distance:2; within:1; reference:md5,98ee48860712d3c06c3a4aa31c14de3a; reference:url,www.trendmicro.com/en_us/research/22/e/netdooka-framework-distributed-via-privateloader-ppi.html; classtype:command-and-control; sid:2036611; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_08_27, deployment Perimeter, deprecation_reason Duplicate, malware_family NetDooka, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_29;)