BADFUNC.ANTIDEBUG : Possible Anti-Debugging

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CodeSonar^® 9.2p0

CONFIDENTIAL

CodeSecure Inc

C and C++

Binaries

BADFUNC.ANTIDEBUG : Possible Anti-Debugging

Summary

A use of any of the following functions, which may be used to detect a debugger.

ptrace()
IsDebuggerPresent()
NtQueryInformationProcess()
ProcessDebugObjectHandle()
RtlQueryProcessHeapInformation()
RtlQueryProcessDebugInformation()
SetUnhandledExceptionFilter()
NtCreateDebugObject()
NtQuerySystemInformation()
RtlQueryProcessDebugInformation()
RtlQueryProcessDebugInformation()

Properties

Class Name	Possible Anti-Debugging
Significance	security
Mnemonic	BADFUNC.ANTIDEBUG
Categories	None
Availability	Available for C and C++.
Enabling	Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file. WARNING_FILTER += allow class="Possible Anti-Debugging"

Example

#include <Windows.h>

int main(int argc, char *argv[]){   
    if (IsDebuggerPresent()){  /* Possible Anti-Debugging' warning issued here */
      /* ... */
    }
    /* ... */
}

Relevant Configuration File Parameters

This class is implemented using a BAD_FUNCTION_* rule set in the general template configuration file.

To include an additional function or set of functions in the checks for this class, create a new set of BAD_FUNCTION_* rules in which the BAD_FUNCTION_REGEX setting matches the function or set of functions you want to check and the remaining rules match those in the other sets for this class.
To remove a function or set of functions from the checks for this class, edit the configuration file to comment out the corresponding set of BAD_FUNCTION_* rules.

The following configuration file parameters affect checks for this warning class.

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