ET MALWARE Win32/Onliner Template 1 Active - Malicious Outbound Email Spam

Query · suricata

flow:established,to_server;
content:"Subject|3a 20|";
content:"Canada|20|Post"; within:80;
content:"To|20|download|20|the|20|tracking|20|number"; distance:0;
content:"in|20|the|20|zip|20|file.."; distance:0; fast_pattern;
content:"Click|20|here|20|to|20|download|20|your|20|Tracking|20|Number"; distance:0;
Raw source ET MALWARE Win32/Onliner Template 1 Active - Malicious Outbound Email Spam · 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 Win32/Onliner Template 1 Active - Malicious Outbound Email Spam";
    flow:established,to_server;
    content:"Subject|3a 20|";
    content:"Canada|20|Post"; within:80;
    content:"To|20|download|20|the|20|tracking|20|number"; distance:0;
    content:"in|20|the|20|zip|20|file.."; distance:0; fast_pattern;
    content:"Click|20|here|20|to|20|download|20|your|20|Tracking|20|Number"; distance:0;
    reference:url,www.blueliv.com/blog/research/analysis-spam-distribution-botnet-onliner-spambot/;
    classtype:trojan-activity;
    sid:2027811; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_08_06, deployment Perimeter, malware_family Onliner, performance_impact Low, confidence High, signature_severity Major, tag SpamBot, updated_at 2020_08_19;
)

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