ET RETIRED Win32/PSWStealer Data Exfiltration Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|";
content:".zip|22|"; distance:0; within:30;
content:"|0d 0a 0d 0a|PK"; distance:0; within:60;
content:"System.txt"; distance:0; fast_pattern;
target:src_ip;
Raw source ET RETIRED Win32/PSWStealer 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 RETIRED Win32/PSWStealer Data Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|";
    content:".zip|22|"; distance:0; within:30;
    content:"|0d 0a 0d 0a|PK"; distance:0; within:60;
    content:"System.txt"; distance:0; fast_pattern;
    reference:md5,a360ad818cd38ab5a82d672912c31d75;
    reference:url,twitter.com/James_inthe_box/status/1638626799256240128;
    classtype:trojan-activity;
    sid:2044796; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_28, deployment Perimeter, former_category MALWARE, malware_family PSWStealer, performance_impact Low, confidence High, signature_severity Major, tag PSWStealer, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_30, reviewed_at 2024_09_30;
    target:src_ip;
)

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