Proxy unit, method for the computer-assisted protection of an application server program, a system having a proxy unit and a unit for executing an application server program

摘要

An application-layer-coded message is received in a proxy unit and is decoded on the basis of an application layer protocol format. A check is carried out to determine whether the decoded message satisfies at least one prescribed attack test criterion, and only the messages which do not satisfy the prescribed attack test criterion are transmitted to the application server program which is to be protected.