ET MALWARE Win32/Bumblebee Loader Related Download Activity (GET)

Query · suricata

flow:established,to_server;
urilen:10;
http.method;
content:"GET";
http.uri;
content:"/w_ver.dat"; bsize:10; fast_pattern;
http.host;
pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
http.header_names;
content:!"Referer|0d 0a|";
content:!"User-Agent|0d 0a|";
target:src_ip;
Raw source ET MALWARE Win32/Bumblebee Loader Related Download Activity (GET) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Bumblebee Loader Related Download Activity (GET)";
    flow:established,to_server;
    urilen:10;
    http.method;
    content:"GET";
    http.uri;
    content:"/w_ver.dat"; bsize:10; fast_pattern;
    http.host;
    pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"User-Agent|0d 0a|";
    reference:md5,017e6b2df70f70f41c4e9ce6527925a2;
    classtype:trojan-activity;
    sid:2051782; 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_25, deployment Perimeter, malware_family Win32_Bumblebee, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_25;
    target:src_ip;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.