ET MALWARE Latrodectus Loader Related Activity (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.user_agent;
content:"Mozilla/4.0 (compatible|3b 20|MSIE 7.0|3b 20|Windows NT 5.1|3b 20|Tob 1.1)"; bsize:59; fast_pattern;
http.header_names;
content:!"Referer";
target:src_ip;
Raw source ET MALWARE Latrodectus Loader Related Activity (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 Latrodectus Loader Related Activity (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.user_agent;
    content:"Mozilla/4.0 (compatible|3b 20|MSIE 7.0|3b 20|Windows NT 5.1|3b 20|Tob 1.1)"; bsize:59; fast_pattern;
    http.header_names;
    content:!"Referer";
    reference:url,medium.com/walmartglobaltech/icedid-gets-loaded-af073b7b6d39;
    reference:md5,f93f91aca8e20bb97f94c05e5dd839e7;
    classtype:trojan-activity;
    sid:2048735; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_10_23, deployment Perimeter, deployment SSLDecrypt, malware_family Latrodectus, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_15, reviewed_at 2023_10_23;
    target:src_ip;
)

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