ET CURRENT_EVENTS [Fireeye] Backdoor.HTTP.BEACON.[CSBundle Original GET]

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET CURRENT_EVENTS [Fireeye] Backdoor.HTTP.BEACON.[CSBundle Original GET]";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.accept;
    content:"*/*"; bsize:3;
    http.accept_lang;
    content:"en-US"; bsize:5;
    http.accept_enc;
    content:"gzip, deflate"; bsize:13;
    http.cookie;
    content:"display-culture=en|3b|check=true|3b|lbcs=0|3b|sess-id=";
    content:"|3b|SIDCC=AN0-TY21iJHH32j2m|3b|FHBv3=B"; fast_pattern;
    http.uri;
    pcre:"/^\/(?:v(?:1\/buckets\/default\/ext-5dkJ19tFufpMZjVJbsWCiqDcclDw\/records|4\/links\/activity-stream|3\/links\/ping-centre)|gp\/(?:aj\/private\/reviewsGallery\/get-(?:application-resource|image-gallery-asset)s|cerberus\/gv)|en-us\/(?:p\/(?:onerf\/MeSilentPassport|book-2\/8MCPZJJCC98C)|store\/api\/checkproductinwishlist)|wp-(?:content\/themes\/am43-6\/dist\/records|includes\/js\/script\/indigo-migrate)|api2\/json\/(?:cluster\/(?:resource|task)s|access\/ticket))/";
    reference:url,github.com/fireeye/red_team_tool_countermeasures;
    classtype:trojan-activity;
    sid:2031264; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_08, deployment Perimeter, confidence High, signature_severity Major, tag c2, updated_at 2023_12_22, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)