ET RETIRED CIA Ransomware - wallpaper/readme retrieval attempt

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
pcre:"/^\/(?:image|readme)$/";
http.user_agent;
content:"Go-http-client/"; startswith; fast_pattern;
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
content:"|0d 0a|Host|0d 0a|User-Agent|0d 0a|Accept-Encoding|0d 0a 0d 0a|";
Raw source ET RETIRED CIA Ransomware - wallpaper/readme 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 -> $EXTERNAL_NET any (
    msg:"ET RETIRED CIA Ransomware - wallpaper/readme retrieval attempt";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    pcre:"/^\/(?:image|readme)$/";
    http.user_agent;
    content:"Go-http-client/"; startswith; fast_pattern;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    content:"|0d 0a|Host|0d 0a|User-Agent|0d 0a|Accept-Encoding|0d 0a 0d 0a|";
    reference:url,blog.phylum.io/phylum-detects-active-typosquatting-campaign-in-pypi;
    classtype:trojan-activity;
    sid:2042950; rev:2;
    metadata:affected_product Any, attack_target Client_and_Server, created_at 2022_12_15, deployment Perimeter, former_category MALWARE, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_23, reviewed_at 2024_09_23;
)

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.