Versions (3)
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Rev: 3 • Sep 9, 2019, 12:00 PMET MALWARE Possible PHP.MAILER WebShell Generic Request Inbound
alert http $EXTERNAL_NET any -> any any (msg:"ET MALWARE Possible PHP.MAILER WebShell Generic Request Inbound"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/start_cache1.php"; fast_pattern; endswith; reference:url,blog.trendmicro.com/trendlabs-security-intelligence/spam-campaign-abuses-php-functions-for-persistence-uses-compromised-devices-for-evasion-and-intrusion/; classtype:trojan-activity; sid:2027969; rev:3; metadata:attack_target Server, created_at 2019_09_09, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_09_17;)
Sep 9, 2019, 12:00 PM
Sep 17, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules