Search Evasion Techniques
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Atom Bombing Process Manipulating
Atom Bombing is a technique that utilizes Windows Atom Tables, which provide a global storage mechanism for strings, to inject malicious code into a target process.
The technique involves storing a shellcode in an Atom Table, then using the NtQueueApcThread function to force the targeted process to access the specific Atom, causing the injection to occur. To bypass Data Execution …
SuspendThread Anti-Debugging
Suspending threads is a technique used by malware to disable user-mode debuggers and make it more difficult for security analysts to reverse engineer and analyze the code. This can be achieved by using the SuspendThread function from the kernel32.dll library or the NtSuspendThread function from the NTDLL.DLL library.
The malware can enumerate the threads of a given process, or search …
NtSetInformationThread Anti-Debugging
NtSetInformationThread can be used to hide threads from debuggers using the ThreadHideFromDebugger ThreadInfoClass (0x11 / 17). This is intended to be used by an external process, but any thread can use it on itself.
After the thread is hidden from the debugger, it will continue running but the debugger won’t receive events related to this thread. This thread …
NtQueryObject Anti-Debugging
This function retrieves object information. By calling this function with the class ObjectTypeInformation will retrieve the specific object type (debug) to detect the debugger.