ET MALWARE Konni Stage 2 Payload Exfiltrating Data

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php?client_id="; fast_pattern;
http.request_body;
content:"name=|22|fileToUpload|22 3b|";
content:"Upload|20|Image|0d 0a|----"; distance:0;
content:"|00 00 00 00 00 00|"; endswith;
Raw source ET MALWARE Konni Stage 2 Payload Exfiltrating Data · 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 MALWARE Konni Stage 2 Payload Exfiltrating Data";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php?client_id="; fast_pattern;
    http.request_body;
    content:"name=|22|fileToUpload|22 3b|";
    content:"Upload|20|Image|0d 0a|----"; distance:0;
    content:"|00 00 00 00 00 00|"; endswith;
    reference:md5,d41b09aa32633d77a8856dae33b3d7b9;
    classtype:command-and-control;
    sid:2030219; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_05_26, deployment Perimeter, confidence High, signature_severity Major, tag Konni, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_05_26;
)

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