ET MALWARE Dmechant Exfil Passwords via SMTP

Query · suricata

flow:established,to_server;
content:"|0d 0a|Subject|3a 20|Passwords|3a 3a 3a 3a|"; fast_pattern;
content:"Username|3a 20|"; distance:0;
content:"CompName|3a 20|"; distance:0;
content:"Password|20 3a 20|"; distance:0;
content:"Application|20 3a 20|"; distance:0;
content:"========";
Raw source ET MALWARE Dmechant Exfil Passwords via SMTP · 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 smtp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Dmechant Exfil Passwords via SMTP";
    flow:established,to_server;
    content:"|0d 0a|Subject|3a 20|Passwords|3a 3a 3a 3a|"; fast_pattern;
    content:"Username|3a 20|"; distance:0;
    content:"CompName|3a 20|"; distance:0;
    content:"Password|20 3a 20|"; distance:0;
    content:"Application|20 3a 20|"; distance:0;
    content:"========";
    reference:md5,e2da54028e5172ac42c89bc2271a2bb8;
    reference:url,www.fortinet.com/blog/threat-research/fresh-malware-hunts-for-crypto-wallet-and-credentials;
    classtype:command-and-control;
    sid:2033414; rev:1;
    metadata:created_at 2021_07_25, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_25;
)

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