Search Evasion Techniques
Names, Techniques, Definitions, Keywords
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52 item(s) found so far for this keyword.
GetForegroundWindow Sandbox Evasion
This technique uses the GetForegroundWindow and Sleep APIs to attempt to evade sandboxes. Many sandboxes do not alter the foreground window like a user would in a normal desktop environment.
It accomplishes this by making a call to GetForegroundWindow, which returns a handle to the current window. Then the malware sample will sleep for a short time, followed by …
Process Ghosting Process Manipulating
Process Ghosting is a technique used to bypass detection by manipulating the executable image when a process is loaded.
Windows attempts to prevent mapped executables from being modified. Once a file is mapped into an image section, attempts to open it with FILE_WRITE_DATA (to modify it) will fail with ERROR_SHARING_VIOLATION. Deletion attempts via FILE_DELETE_ON_CLOSE/FILE_FLAG_DELETE_ON_CLOSE fail with …
Alienyze Packers
Alienyze is a software packer designed to compress executable files, allowing them to reduce the file size of their software as much as possible.
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Anti-Debugger techniques that detect and fool present debuggers
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Anti-VM techniques that detect sandbox & virtualized environments
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Protection from disassemblers and software analysis tools
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Hardware …
BobSoft Mini Delphi Packer Packers
The Delphi programming language can be an easy way to write applications and programs that leverage Windows API functions. In fact, some actors deliberately include the default libraries as a diversion to hamper static analysis and make the application "look legit" during dynamic analysis.
The packer goes to great lengths to ensure that it is not running in an …
Domain Policy Modification: Group Policy Modification Defense Evasion [Mitre]
Adversaries may modify Group Policy Objects (GPOs) to subvert the intended discretionary access controls for a domain, usually with the intention of escalating privileges on the domain. Group policy allows for centralized management of user and computer settings in Active Directory (AD). GPOs are containers for group policy settings made up of files stored within a predicable network path \\SYSVOL\\Policies.
…Domain Member Sandbox Evasion
This technique determines if a host is a member of an Active Directory Domain without API calls. It helps prevent malicious payload execution in enterprise sandboxes that are not members of an Active Directory domain. The validation is done by checking the "LoggonServer" and "ComputerName" environment variables. If the host is logged into a domain controller, the "LoggonServer" value will …
Hide Artifacts: Hidden Window Defense Evasion [Mitre]
Adversaries may use hidden windows to conceal malicious activity from the plain sight of users. In some cases, windows that would typically be displayed when an application carries out an operation can be hidden. This may be utilized by system administrators to avoid disrupting user work environments when carrying out administrative tasks.
On Windows, there are a variety of …
Hide Artifacts: Run Virtual Instance Defense Evasion [Mitre]
Adversaries may carry out malicious operations using a virtual instance to avoid detection. A wide variety of virtualization technologies exist that allow for the emulation of a computer or computing environment. By running malicious code inside of a virtual instance, adversaries can hide artifacts associated with their behavior from security tools that are unable to monitor activity inside the virtual …
Exploitation for Defense Evasion Defense Evasion [Mitre]
Adversaries may exploit a system or application vulnerability to bypass security features. Exploitation of a software vulnerability occurs when an adversary takes advantage of a programming error in a program, service, or within the operating system software or kernel itself to execute adversary-controlled code. Vulnerabilities may exist in defensive security software that can be used to disable or circumvent them.
…Masquerading: Match Legitimate Name or Location Defense Evasion [Mitre]
Adversaries may match or approximate the name or location of legitimate files or resources when naming/placing them. This is done for the sake of evading defenses and observation. This may be done by placing an executable in a commonly trusted directory (ex: under System32) or giving it the name of a legitimate, trusted program (ex: svchost.exe). In containerized environments, this …