alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET MALWARE CopperStealer - Remote Desktop - CnC Server Response via Pastebin";
flow:established,to_client;
http.response_body;
content:"data|2d|sourceurl|3d 22|https|3a 2f 2f|pastebin|2e|com|2f|raw|2f|";
content:"|0a 20 20 3c|pre|3e 40 40|"; distance:0; fast_pattern;
content:"|7e 7e 40 40 3c 2f|pre|3e 0a 20 20|"; within:200;
reference:md5,cb39d19f07ea387b1f1dcd22f889545b;
reference:md5,04bc575585d4663f227cef14a65bea26;
reference:url,www.trendmicro.com/en_us/research/22/f/websites-hosting-fake-cracks-spread-updated-copperstealer.html;
classtype:command-and-control;
sid:2037029; rev:1;
metadata:attack_target Client_Endpoint, created_at 2022_06_17, deployment Perimeter, malware_family CopperStealer, confidence Medium, signature_severity Major, tag c2, updated_at 2022_06_17, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)