ET EXPLOIT Ghostscript illegal delete bindnow attempt (SMTP)

Query · suricata

flow:to_server,established;
file_data;
content:"unlink("; fast_pattern;
content:"|2E|bindnow";
content:"stopped"; distance:0;
pcre:"/\x2Ebindnow[^\x7D]*\x7D\s*stopped/smi";
Raw source ET EXPLOIT Ghostscript illegal delete bindnow attempt (SMTP) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert smtp $EXTERNAL_NET any -> $SMTP_SERVERS any (
    msg:"ET EXPLOIT Ghostscript illegal delete bindnow attempt (SMTP)";
    flow:to_server,established;
    file_data;
    content:"unlink("; fast_pattern;
    content:"|2E|bindnow";
    content:"stopped"; distance:0;
    pcre:"/\x2Ebindnow[^\x7D]*\x7D\s*stopped/smi";
    reference:url,seclists.org/oss-sec/2018/q3/142;
    classtype:attempted-user;
    sid:2026088; rev:2;
    metadata:attack_target SMTP_Server, created_at 2018_09_05, deployment Datacenter, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.