ET HUNTING Possible Generic Stealer Sending a Screenshot

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"filename=|22|---Screenshot.jpeg|22|"; fast_pattern;
Raw source ET HUNTING Possible Generic Stealer Sending a Screenshot · Suricata
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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 HUNTING Possible Generic Stealer Sending a Screenshot";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"filename=|22|---Screenshot.jpeg|22|"; fast_pattern;
    reference:md5,0a7b32e75a01764ef5389a1d9e72ed63;
    classtype:misc-activity;
    sid:2036885; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_06, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_10;
)

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