This indicates an attack attempt to exploit an Insecure Deserialization Vulnerability in Plesk/myLittleAdmin.
This vulnerability is due to .NET serialization issues when processing HTTP requests. A remote unauthenticated attacker can exploit this vulnerability by sending a crafted request. Successful exploitation would result in arbitrary code execution or arbitrary file creation or deletion.
myLittleAdmin version 3.8 and prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Please refer to Plesk advisory for updates regarding this issue in Plesk
|IPS (Regular DB)
|IPS (Extended DB)