ET MALWARE Cobalt Strike Activity (GET)

#alert http $HOME_NET any -> $EXTERNAL_NET any (
#    msg:"ET MALWARE Cobalt Strike Activity (GET)";
#    flow:established,to_server;
#    http.method;
#    content:"GET";
#    http.uri;
#    content:"/fo.html?route=true"; bsize:19; fast_pattern;
#    http.connection;
#    content:"Close"; bsize:5;
#    http.user_agent;
#    content:"Mozilla|2f|5|2e|0|20 28|Windows|20|NT|20|6|2e|1|3b 20|WOW64|29 20|AppleWebKit|2f|537|2e|36|20 28|KHTML|2c 20|like|20|Gecko|29 20|Chrome|2f|47|2e|0|2e|2526|2e|111|20|Safari|2f|537|2e|36"; bsize:109;
#    http.cookie;
#    content:"lu="; startswith;
#    http.header_names;
#    content:!"Referer";
#    reference:md5,b2a682b8fe731d3c9a97b8fbf1cd84ae;
#    reference:url,malware-traffic-analysis.net/2022/07/25/index.html;
#    classtype:trojan-activity;
#    sid:2037831; rev:2;
#    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_26, deployment Perimeter, deployment SSLDecrypt, deprecation_reason Age, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2024_12_02, reviewed_at 2024_12_02, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;
#)