The program can detect such stopping by monitoring the system time. In this case the operation of the program is suspended. The debuggers are capable of making breakpoints in code.

Let’s consider the system of debugger identification. This causes difficulties in application reversing. The OllyDbg has the «HideOD» and «Hide Debugger» anti-debug plugins, which have no possibility to hide actual time. Measuring time to identify that an application is being debugged becomes the widespread practice lately. There are a number of various approaches, like Debug Blocker, Nanomites, others. Serious programs have various means of protection against debugging. Modern computer programs are more complex in writing and more difficult for reversing. This article is intended for people experienced in C++ and dll writing. Writing the auxiliary module for plugin.The task is to prevent the application being debugged from detecting the debugger. In this article, I will tell you how to write an anti-debug plugin for OllyDbg v. Download AntiDebugTimePlugin.zip - 166.5 KB.

Ollydbg debugger detected