ET MALWARE nspps Backdoor - Sending SOCKS Details

Query · suricata

flow:established,to_server;
http.start;
content:"POST /s HTTP/1.1|0d 0a|";
http.request_body;
content:"|57 7a 74 47 8c 44 c8 7c ed|"; startswith; fast_pattern;
Raw source ET MALWARE nspps Backdoor - Sending SOCKS Details · 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 nspps Backdoor - Sending SOCKS Details";
    flow:established,to_server;
    http.start;
    content:"POST /s HTTP/1.1|0d 0a|";
    http.request_body;
    content:"|57 7a 74 47 8c 44 c8 7c ed|"; startswith; fast_pattern;
    reference:url,ironnet.com/blog/malware-analysis-nspps-a-go-rat-backdoor/;
    reference:md5,435716b4f56cf94fdb7f6085dced41e5;
    classtype:command-and-control;
    sid:2030109; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_05_05, deployment Perimeter, confidence Medium, signature_severity Major, updated_at 2020_05_05;
)

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