ET RETIRED Win32/Lilith Stealer uploadFile Data Exfiltration Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/gate/"; startswith;
pcre:"/^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}/R";
content:"/uploadFile?name="; fast_pattern; distance:0;
content:".zip"; distance:0;
content:"dir=";
http.user_agent;
content:"Lilith-Bot/"; startswith;
http.header_names;
content:!"Referer";
Raw source ET RETIRED Win32/Lilith Stealer uploadFile Data Exfiltration Attempt · 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 RETIRED Win32/Lilith Stealer uploadFile Data Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/gate/"; startswith;
    pcre:"/^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}/R";
    content:"/uploadFile?name="; fast_pattern; distance:0;
    content:".zip"; distance:0;
    content:"dir=";
    http.user_agent;
    content:"Lilith-Bot/"; startswith;
    http.header_names;
    content:!"Referer";
    reference:md5,0ebe8de305581c9eca37e53a46d033c8;
    classtype:trojan-activity;
    sid:2038499; rev:2;
    metadata:attack_target Client_and_Server, created_at 2022_08_11, deployment Perimeter, former_category MALWARE, malware_family Lilith_Stealer, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_17, reviewed_at 2024_09_17;
)

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