This indicates an attack attempt to exploit a Directory Traversal Vulnerability in Trend Micro OfficeScan.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted ZIP file. A remote, authenticated attacker could exploit this vulnerability by sending a request containing a crafted ZIP file to the OfficeScan server. Successful exploitation could result in arbitrary code execution in the context of the server application.
Trend Micro OfficeScan 11.0 SP1 prior to CP 6638
Trend Micro OfficeScan XG prior to CP 1962
Trend Micro OfficeScan XG SP1 prior to CP 5427
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.