ET MALWARE Suspicious Email Attachment Possibly Related to Mydoom.L@mm

Query · suricata

flow:established,to_server;
content:"Subject|3a 20|"; nocase;
content:"mail"; nocase; within:34;
content:"name|3d 22|";
pcre:"/name\x3d\x22(message|letter|.*lebanon\x2donline\x2ecom\x2elb)?\x2ezip\x22\x0d\x0a/";
Raw source ET MALWARE Suspicious Email Attachment Possibly Related to Mydoom.L@mm · 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 Email Attachment Possibly Related to Mydoom.L@mm";
    flow:established,to_server;
    content:"Subject|3a 20|"; nocase;
    content:"mail"; nocase; within:34;
    content:"name|3d 22|";
    pcre:"/name\x3d\x22(message|letter|.*lebanon\x2donline\x2ecom\x2elb)?\x2ezip\x22\x0d\x0a/";
    reference:md5,28110a8ea5c13859ddf026db5a8a864a;
    reference:url,www.symantec.com/security_response/writeup.jsp?docid=2004-071915-0829-99&tabid=2;
    classtype:trojan-activity;
    sid:2012932; rev:8;
    metadata:created_at 2011_06_06, signature_severity Major, updated_at 2019_07_26;
)

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