Process Injection: Portable Executable Injection

Defense Evasion [Mitre]

Adversaries may inject portable executables (PE) into processes in order to evade process-based defenses as well as possibly elevate privileges. PE injection is a method of executing arbitrary code in the address space of a separate live process.

PE injection is commonly performed by copying code (perhaps without a file on disk) into the virtual address space of the …

Process Injection: Asynchronous Procedure Call

Defense Evasion [Mitre]

Adversaries may inject malicious code into processes via the asynchronous procedure call (APC) queue in order to evade process-based defenses as well as possibly elevate privileges. APC injection is a method of executing arbitrary code in the address space of a separate live process.

APC injection is commonly performed by attaching malicious code to the APC Queue of a …

Process Injection: Extra Window Memory Injection

Defense Evasion [Mitre]

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 …

Process Injection: Process Hollowing

Defense Evasion [Mitre]

Adversaries may inject malicious code into suspended and hollowed processes in order to evade process-based defenses. Process hollowing is a method of executing arbitrary code in the address space of a separate live process.

Process hollowing is commonly performed by creating a process in a suspended state then unmapping/hollowing its memory, which can then be replaced with malicious code. …

Process Injection: Process Doppelgänging

Defense Evasion [Mitre]

Adversaries may inject malicious code into process via process doppelgänging in order to evade process-based defenses as well as possibly elevate privileges. Process doppelgänging is a method of executing arbitrary code in the address space of a separate live process.

Windows Transactional NTFS (TxF) was introduced in Vista as a method to perform safe file operations. To ensure data …

Process Injection: ListPlanting

Defense Evasion [Mitre]

Adversaries may abuse list-view controls to inject malicious code into hijacked processes in order to evade process-based defenses as well as possibly elevate privileges. ListPlanting is a method of executing arbitrary code in the address space of a separate live process. Code executed via ListPlanting may also evade detection from security products since the execution is masked under a legitimate …

Subvert Trust Controls: SIP and Trust Provider Hijacking

Defense Evasion [Mitre]

Adversaries may tamper with SIP and trust provider components to mislead the operating system and application control tools when conducting signature validation checks. In user mode, Windows Authenticode digital signatures are used to verify a file's origin and integrity, variables that may be used to establish trust in signed code (ex: a driver with a valid Microsoft signature may be …

System Binary Proxy Execution: InstallUtil

Defense Evasion [Mitre]

Adversaries may use InstallUtil to proxy execution of code through a trusted Windows utility. InstallUtil is a command-line utility that allows for installation and uninstallation of resources by executing specific installer components specified in .NET binaries. The InstallUtil binary may also be digitally signed by Microsoft and located in the .NET directories on a Windows system: C:\Windows\Microsoft.NET\Framework\v\InstallUtil.exe and …

System Binary Proxy Execution: Regsvr32

Defense Evasion [Mitre]

Adversaries may abuse Regsvr32.exe to proxy execution of malicious code. Regsvr32.exe is a command-line program used to register and unregister object linking and embedding controls, including dynamic link libraries (DLLs), on Windows systems. The Regsvr32.exe binary may also be signed by Microsoft.

Malicious usage of Regsvr32.exe may avoid triggering security tools that may not monitor execution of, and modules …

System Binary Proxy Execution: Rundll32

Defense Evasion [Mitre]

Adversaries may abuse rundll32.exe to proxy execution of malicious code. Using rundll32.exe, vice executing directly (i.e. Shared Modules), may avoid triggering security tools that may not monitor execution of the rundll32.exe process because of allowlists or false positives from normal operations. Rundll32.exe is commonly associated with executing DLL payloads (ex: rundll32.exe {DLLname, DLLfunction}).

Rundll32.exe can also be used to …

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Process Injection: Portable Executable Injection

Defense Evasion [Mitre]

Process Injection: Asynchronous Procedure Call

Defense Evasion [Mitre]

Process Injection: Extra Window Memory Injection

Defense Evasion [Mitre]

Process Injection: Process Hollowing

Defense Evasion [Mitre]

Process Injection: Process Doppelgänging

Defense Evasion [Mitre]

Process Injection: ListPlanting

Defense Evasion [Mitre]

Subvert Trust Controls: SIP and Trust Provider Hijacking

Defense Evasion [Mitre]

System Binary Proxy Execution: InstallUtil

Defense Evasion [Mitre]

System Binary Proxy Execution: Regsvr32

Defense Evasion [Mitre]

System Binary Proxy Execution: Rundll32

Defense Evasion [Mitre]