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SID: 2036626 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 1May 18, 2022, 12:00 PM

ET HUNTING Possible PHP Backdoor Command Execution

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Possible PHP Backdoor Command Execution"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php"; content:"=system|28 27|"; fast_pattern; http.header_names; content:!"Referer"; reference:url,www.ic3.gov/Media/News/2022/220516.pdf; classtype:trojan-activity; sid:2036626; rev:1; metadata:affected_product PHP, attack_target Web_Server, created_at 2022_05_18, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_18, reviewed_at 2024_09_12;)

May 18, 2022, 12:00 PM

May 18, 2022, 12:00 PM

Sep 21, 2024, 3:00 AM

Sep 3, 2025, 8:34 PM

rules/emerging-hunting.rules