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 appearance

Scheduled Task

Adversaries may abuse the Windows Task Scheduler to perform task scheduling for initial or recurring execution of malicious code. There are multiple ways to access the Task Scheduler in Windows. The schtasks can be run directly on the command line, or the Task Scheduler can be opened through the GUI within the Administrator Tools section of the Control Panel. In some cases, adversarie

Indicator Removal from Tools

Archive via Utility

An adversary may compress or encrypt data that is collected prior to exfiltration using 3rd party utilities. Many utilities exist that can archive data, including 7-Zip(Citation: 7zip Homepage), WinRAR(Citation: WinRAR Homepage), and WinZip(Citation: WinZip Homepage). Most utilities include functionality to encrypt and/or compress data. Some 3rd party utilities may be preinstalled, such as `tar`


Adversaries may use [Valid Accounts]( to remotely control machines using Virtual Network Computing (VNC). The adversary may then perform actions as the logged-on user. VNC is a desktop sharing system that allows users to remotely control another computer’s display by relaying mouse and keyboard inputs over the network. VNC does not necessarily use stand

Windows Management Instrumentation

Adversaries may abuse Windows Management Instrumentation (WMI) to achieve execution. WMI is a Windows administration feature that provides a uniform environment for local and remote access to Windows system components. It relies on the WMI service for local and remote access and the server message block (SMB) (Citation: Wikipedia SMB) and Remote Procedure Call Service (RPCS) (Citation: TechNet RPC

Malicious Shell Modification

Screen Capture

Adversaries may attempt to take screen captures of the desktop to gather information over the course of an operation. Screen capturing functionality may be included as a feature of a remote access tool used in post-compromise operations. Taking a screenshot is also typically possible through native utilities or API calls, such as CopyFromScreen, xwd, or screencaptur


Boot or Logon Initialization Scripts

Adversaries may use scripts automatically executed at boot or logon initialization to establish persistence. Initialization scripts can be used to perform administrative functions, which may often execute other programs or send information to an internal logging server. These scripts can vary based on operating system and whether applied locally or remotely. Adversaries may use these scripts to