ET MALWARE Moose CnC Response

Query · suricata

flow:from_server,established;
content:"PP|3b 20|expires="; fast_pattern;
http.stat_code;
content:"200";
http.cookie;
content:"PHPSESSID=";
content:"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"; distance:0;
content:"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"; distance:0;
content:"PP|3b 20|expires="; distance:0;
content:"WL=";
content:"PP|3b 20|expires="; distance:0;
http.content_type;
content:"text/html"; startswith;
file.data;
content:"<html><body><h1>It works!</h1>"; nocase; depth:30;
Raw source ET MALWARE Moose CnC Response · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Moose CnC Response";
    flow:from_server,established;
    content:"PP|3b 20|expires="; fast_pattern;
    http.stat_code;
    content:"200";
    http.cookie;
    content:"PHPSESSID=";
    content:"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"; distance:0;
    content:"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"; distance:0;
    content:"PP|3b 20|expires="; distance:0;
    content:"WL=";
    content:"PP|3b 20|expires="; distance:0;
    http.content_type;
    content:"text/html"; startswith;
    file.data;
    content:"<html><body><h1>It works!</h1>"; nocase; depth:30;
    reference:url,gosecure.net/2016/11/02/exposing-the-ego-market-the-cybercrime-performed-by-the-linux-moose-botnet/;
    classtype:command-and-control;
    sid:2023478; rev:4;
    metadata:affected_product Linux, attack_target Client_and_Server, created_at 2016_11_02, deployment Perimeter, malware_family Linux_Moose, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_10_07;
)

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