This indicates an attack attempt to exploit a remote Code Execution vulnerability in HP Data Protector's Backup Client service.
The vulnerability is due to an error when a vulnerable module handles a maliciously crafted request. A remote attacker could exploit this to execute arbitrary code execution within the context of the application, via a crafted request.
HP Data Protector 9
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are unaware of any vendor supplied patch for this issue.