ET MALWARE Hakbit/Thanos Ransomware BMP Download

Query · suricata

flow:established,to_server;
content:".bmp HTTP/1.1|0d 0a|Host|3a 20|"; fast_pattern;
http.method;
content:"GET";
http.uri;
pcre:"/^\/help(?:me)?\.bmp$/";
http.header_names;
content:"Host|0d 0a|Connection|0d 0a 0d 0a|";
content:!"User-Agent";
content:!"Referer";
content:!"Accept-";
Raw source ET MALWARE Hakbit/Thanos Ransomware BMP Download · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Hakbit/Thanos Ransomware BMP Download";
    flow:established,to_server;
    content:".bmp HTTP/1.1|0d 0a|Host|3a 20|"; fast_pattern;
    http.method;
    content:"GET";
    http.uri;
    pcre:"/^\/help(?:me)?\.bmp$/";
    http.header_names;
    content:"Host|0d 0a|Connection|0d 0a 0d 0a|";
    content:!"User-Agent";
    content:!"Referer";
    content:!"Accept-";
    reference:url,labs.sentinelone.com/thanos-ransomware-riplace-bootlocker-and-more-added-to-feature-set/;
    reference:md5,c78a9c6affbfbfabfc50fae515675c6a;
    reference:md5,acbf8739dce846472a7715c975dc8b40;
    classtype:trojan-activity;
    sid:2030485; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_07_08, deployment Perimeter, malware_family hakbit, malware_family thanos, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_07_08, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)

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.