This indicates an attack attempt against a remote command-execution vulnerability in phpYabs.
A vulnerability has been reported in phpYabs that may allow an attacker to execute shell commands on a vulnerable system. This is possible because the user input filters fail to properly sanitize the Aizone parameter value that is passed to "index.php". An attacker may include shell commands by supplying an injection string through the URL.
System Compromise: Remote attackers can gain control of vulnerable systems.
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