Search Evasion Techniques
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52 item(s) found so far for this keyword.
Subvert Trust Controls: Mark-of-the-Web Bypass Defense Evasion [Mitre]
Adversaries may abuse specific file formats to subvert Mark-of-the-Web (MOTW) controls. In Windows, when files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW. Files that are tagged with MOTW are protected and cannot perform certain actions. For example, starting in MS Office …
System Binary Proxy Execution: Compiled HTML File Defense Evasion [Mitre]
Adversaries may abuse Compiled HTML files (.chm) to conceal malicious code. CHM files are commonly distributed as part of the Microsoft HTML Help system. CHM files are compressed compilations of various content such as HTML documents, images, and scripting/web related programming languages such VBA, JScript, Java, and ActiveX. CHM content is displayed using underlying components of the Internet Explorer browser …
System Binary Proxy Execution: Control Panel Defense Evasion [Mitre]
Adversaries may abuse control.exe to proxy execution of malicious payloads. The Windows Control Panel process binary (control.exe) handles execution of Control Panel items, which are utilities that allow users to view and adjust computer settings.
Control Panel items are registered executable (.exe) or Control Panel (.cpl) files, the latter are actually renamed dynamic-link library (.dll) files that export a …
System Binary Proxy Execution: Mshta Defense Evasion [Mitre]
Adversaries may abuse mshta.exe to proxy execution of malicious .hta files and Javascript or VBScript through a trusted Windows utility. There are several examples of different types of threats leveraging mshta.exe during initial compromise and for execution of code.
Mshta.exe is a utility that executes Microsoft HTML Applications (HTA) files. HTAs are standalone applications that execute using the same …
Template Injection Defense Evasion [Mitre]
Adversaries may create or modify references in user document templates to conceal malicious code or force authentication attempts. For example, Microsoft’s Office Open XML (OOXML) specification defines an XML-based format for Office documents (.docx, xlsx, .pptx) to replace older binary formats (.doc, .xls, .ppt). OOXML files are packed together ZIP archives compromised of various XML files, referred to as parts, …
C2 via FTP(S) Network Evasion
C2 via FTP is a technique that utilizes the File Transfer Protocol (FTP) to establish command and control communication between an attacker and victim systems. It involves sending commands and receiving responses within FTP sessions, effectively using FTP as a conduit for covert communication.
To implement C2 via FTP, an attacker needs control over an FTP server, and must …
SMB / Named Pipes Network Evasion
Named Pipes are a feature of the Windows operating system that allow for inter-process communication (IPC) using a pipe metaphor. These are particularly useful in networking scenarios as they can be made accessible over a network and facilitate a client-server model of communication. The SMB (Server Message Block) protocol is commonly used in Windows environments for shared access to files, …
FuncIn Antivirus/EDR Evasion Anti-Debugging Anti-Disassembly Anti-Forensic
FuncIn involves a payload staging strategy wherein the entire set of malicious functionalities is not contained within the malware file itself or any third-party file/network location (e.g., a web server). Instead, these functionalities are transmitted over the network by the Command and Control (C2) server when required.
This approach addresses three primary issues in malware development. Firstly, it mitigates …
PureCrypter Packers
PureCrypter, a multi-functional crypter/loader developed in C#, was first introduced in hacking forums on March 17, 2021. This tool is compatible with both 32-bit and 64-bit native as well as .NET payloads. It features multiple injection modes, including reflection, RunPE, and shellcode. PureCrypter can deliver payloads either via a URL or offline. It has been noted for its use in …
Retrieve HDD Information Sandbox Evasion
Malware can figure out if it's in a virtual environment by checking hard drive info. It looks for specific details like serial and model numbers. This is easier to spot in VirtualBox because it shows clues that it's running in a virtual space.
Malware uses this trick to avoid getting caught. It does this by using a special command …