ET MALWARE PLATINUM Steganographic HTTP Response Page Inbound

Query · suricata

flow:established,from_server;
http.stat_code;
content:"200";
file.data;
content:"|3c 21|--1234567890--"; fast_pattern;
content:"|3c|td|20|bgcolor=|22|"; distance:0;
content:"|3c|td|20|align=|22|"; distance:0;
content:"|20 20 20 20 09|"; distance:0;
content:"|20 20 20 20|"; distance:0;
content:"--1234567890--|3e|"; distance:0;
Raw source ET MALWARE PLATINUM Steganographic HTTP Response Page Inbound · 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 PLATINUM Steganographic HTTP Response Page Inbound";
    flow:established,from_server;
    http.stat_code;
    content:"200";
    file.data;
    content:"|3c 21|--1234567890--"; fast_pattern;
    content:"|3c|td|20|bgcolor=|22|"; distance:0;
    content:"|3c|td|20|align=|22|"; distance:0;
    content:"|20 20 20 20 09|"; distance:0;
    content:"|20 20 20 20|"; distance:0;
    content:"--1234567890--|3e|"; distance:0;
    reference:url,securelist.com/platinum-is-back/91135/;
    classtype:trojan-activity;
    sid:2027434; rev:3;
    metadata:created_at 2019_06_05, malware_family PLATINUM, confidence High, signature_severity Major, tag T1001, tag data_obfuscation, tag T1140, tag deobfuscate_decode_payload, updated_at 2020_08_31;
)

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