This indicates an attack attempt to exploit a Code Execution vulnerability in Thomson Reuters Velocity Analytics.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application when handling a crafted HTTP request. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted HTTP request.
Thomson Reuters Velocity Analytics Vhayu Analytic Servers 6.94 build 2995 (and possibly prior versions)
System Compromise: Remote attackers can execute arbitrary code on vulnerable systems.
Apply the most recent upgrade or patch from the vendor (requires login):