ET EXPLOIT Suspicious FTP RETR to .hta file possible exploit (CVE-2017-0199)

Query · suricata

flow:established,to_server;
content:"|2e|hta|0d 0a|"; nocase; fast_pattern;
content:"RETR ";
pcre:"/^[^\r\n]+\.hta\r?\n/Ri";
Raw source ET EXPLOIT Suspicious FTP RETR to .hta file possible exploit (CVE-2017-0199) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (
    msg:"ET EXPLOIT Suspicious FTP RETR to .hta file possible exploit (CVE-2017-0199)";
    flow:established,to_server;
    content:"|2e|hta|0d 0a|"; nocase; fast_pattern;
    content:"RETR ";
    pcre:"/^[^\r\n]+\.hta\r?\n/Ri";
    classtype:bad-unknown;
    sid:2024434; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product MS_Office, attack_target Client_Endpoint, created_at 2017_06_29, cve CVE_2017_0199, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag possible_exploitation, tag CISA_KEV, updated_at 2019_10_08;
)

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