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ProcEnvInjection - Remote code injection by abusing process environment strings
This method allows to inject custom code into a remote process without using WriteProcessMemory - It will use the lpEnvironment parameter in CreateProcess to copy the code into the target process. This technique can be used to load a DLL into a remote process, or simply execute a block of code.
The lpEnvironment parameter in CreateProcess allows us to …
Hijack Execution Flow: KernelCallbackTable
![Defense Evasion [Mitre] icon](/media/2024/04/08/icons8-burglar.svg){kind=small}
Adversaries may abuse the KernelCallbackTable of a process to hijack its execution flow in order to run their own payloads. The KernelCallbackTable can be found in the Process Environment Block (PEB) and is initialized to an array of graphic functions available to a GUI process once user32.dll is loaded.
An adversary may hijack the execution flow of a process …
Read moreProcess Injection: Extra Window Memory Injection
Adversaries may inject malicious code into process via Extra Window Memory (EWM) in order to evade process-based defenses as well as possibly elevate privileges. EWM injection is a method of executing arbitrary code in the address space of a separate live process.
Before creating a window, graphical Windows-based processes must prescribe to or register a windows class, which stipulate …
Read moreIndirect Memory Writing
In local memory movement scenarios, for example, when a loader places a payload into memory for execution, antimalware can detect malicious activity at the moment the payload bytes are written into the newly allocated executable memory region. Attackers may try to evade such detection by avoiding direct writes to new memory region and instead relying on other, legitimate Windows APIs …
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