ET MALWARE Win32/MuggleStealer CnC Desktop Exfil (POST)

Query · suricata

flow:established,to_server;
urilen:23;
http.method;
content:"POST";
http.uri;
content:"/upload/"; startswith;
pcre:"/^(?:[a-zA-Z0-9]{7})\//R";
content:"Desktop"; endswith; fast_pattern;
http.header_names;
content:!"Referer";
http.host;
pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
Raw source ET MALWARE Win32/MuggleStealer CnC Desktop Exfil (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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/MuggleStealer CnC Desktop Exfil (POST)";
    flow:established,to_server;
    urilen:23;
    http.method;
    content:"POST";
    http.uri;
    content:"/upload/"; startswith;
    pcre:"/^(?:[a-zA-Z0-9]{7})\//R";
    content:"Desktop"; endswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    http.host;
    pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
    reference:md5,88a89eb441c0ea0e4e128fd70b244f9d;
    reference:md5,c8ed60d1f24a7119612cd5bde0ddc1e1;
    reference:url,twitter.com/suyog41/status/1638865731550085120;
    classtype:trojan-activity;
    sid:2044753; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_23, deployment Perimeter, deployment SSLDecrypt, malware_family Win32_MuggleStealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_23;
)

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