DATE: COMMAND SOURCE: AUTHOR: cpu-hog SYSTEMS AFFECTED WinNT PROBLEM Applications can set their own priority level, which affects how often Windows NT allows those applications to run. An application running under a user account with administrative privileges can set its priority to any of 32 levels, with the highest level giving it more time slices. Applications running under accounts without administrative privileges can set their priority to any of the first 16 of those levels. CpuHog sets its priority to the highest level available, which is level 16 when run by a normal user. Windows NT attempts to deal with CPU-hogging applications by boosting the priority of other applications. However, Windows NT will only boost applications as high as level 15. Thus, all other applications - even system utilities such as Task Manager - never get a chance to execute while CpuHog is running. CpuHog program can be found at www.ntinternals.com. Credit for discovery of this bug goes to Mark Russinovich. EXPLOIT SOLUTION Give Task Manager level 16. In that way You will be able to kill hogging process.