ET MALWARE Bandit Stealer Data Exfiltration Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"PUT";
http.uri;
content:"/upload/";
http.user_agent;
content:"Go-http-client"; startswith;
http.accept;
content:"application/json";
http.content_type;
content:"application/x-zip-compressed";
http.accept_enc;
content:"gzip";
http.request_body;
content:"PK"; startswith;
content:"Screenshot-"; fast_pattern; within:70;
target:src_ip;
Raw source ET MALWARE Bandit Stealer Data Exfiltration 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 Bandit Stealer Data Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"PUT";
    http.uri;
    content:"/upload/";
    http.user_agent;
    content:"Go-http-client"; startswith;
    http.accept;
    content:"application/json";
    http.content_type;
    content:"application/x-zip-compressed";
    http.accept_enc;
    content:"gzip";
    http.request_body;
    content:"PK"; startswith;
    content:"Screenshot-"; fast_pattern; within:70;
    reference:md5,b985f86091846026c4ea9b93d78e7524;
    reference:url,twitter.com/FalconFeedsio/status/1649641466300334081;
    classtype:trojan-activity;
    sid:2045866; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_25, deployment Perimeter, malware_family Bandit_Stealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_25;
    target:src_ip;
)

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