ET MALWARE TyphonStealer Exfil via AnonFiles (POST)

Query · suricata

flow:established,to_server;
urilen:7;
http.method;
content:"POST";
http.uri;
content:"/upload";
http.host;
content:"api.anonfiles.com";
http.request_body;
content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|";
content:"|00 24 00|HardwareDetails.txt"; fast_pattern:1,20;
content:"|00 24 00|NetworkInformation.txt";
content:"|00 24 00|Screenshot.jpg";
Raw source ET MALWARE TyphonStealer Exfil via AnonFiles (POST) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE TyphonStealer Exfil via AnonFiles (POST)";
    flow:established,to_server;
    urilen:7;
    http.method;
    content:"POST";
    http.uri;
    content:"/upload";
    http.host;
    content:"api.anonfiles.com";
    http.request_body;
    content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|";
    content:"|00 24 00|HardwareDetails.txt"; fast_pattern:1,20;
    content:"|00 24 00|NetworkInformation.txt";
    content:"|00 24 00|Screenshot.jpg";
    reference:url,twitter.com/suyog41/status/1647937033933914113;
    reference:md5,8581eae9949adfdce9a7bf6ae5ae0141;
    classtype:trojan-activity;
    sid:2044967; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_17, deployment Perimeter, deployment SSLDecrypt, malware_family TyphoonStealer, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_17;
)

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