ET MALWARE Suspicious X-mailer Synapse

Query · suricata

flow:established,to_server;
content:"produced by Synapse"; fast_pattern;
content:"X|2d|mailer|3a 20|Synapse|20 2d 20|Pascal TCP|2f|IP library by Lukas Gebauer";
Raw source ET MALWARE Suspicious X-mailer Synapse · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert smtp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Suspicious X-mailer Synapse";
    flow:established,to_server;
    content:"produced by Synapse"; fast_pattern;
    content:"X|2d|mailer|3a 20|Synapse|20 2d 20|Pascal TCP|2f|IP library by Lukas Gebauer";
    reference:md5,954acc71ffaa7010c603d74e76dfc70b;
    reference:url,www.joewein.net/spam/spam-joejob.htm;
    classtype:trojan-activity;
    sid:2018936; rev:3;
    metadata:created_at 2014_08_14, signature_severity Major, updated_at 2019_10_08;
)

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