ET MALWARE Bitter APT Activity - Secondary Payload Retrieval Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/dxl.php?bb|3d|"; fast_pattern;
http.user_agent;
content:"curl/";
target:src_ip;
Raw source ET MALWARE Bitter APT Activity - Secondary Payload Retrieval 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 MALWARE Bitter APT Activity - Secondary Payload Retrieval Attempt";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/dxl.php?bb|3d|"; fast_pattern;
    http.user_agent;
    content:"curl/";
    reference:url,infosec.exchange/@ginkgo/112047866464514906;
    reference:md5,10f4479d5f531def842a712277ae9611;
    classtype:trojan-activity;
    sid:2051515; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_06, deployment Perimeter, malware_family Bitter_APT, performance_impact Low, confidence High, signature_severity Major, tag Bitter_APT, updated_at 2024_03_06;
    target:src_ip;
)

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