Shellcode Injection via CreateThreadpoolWait Process Manipulating

Shellcode injection is a technique used by malware to execute arbitrary code within the context of a targeted process. One method of achieving this is through the use of the CreateThreadpoolWait function, which is a part of the Windows thread pool API.

In the context of shellcode injection, CreateThreadpoolWait is used to create a wait object that is associated …

Unloading Sysmon Driver Anti-Monitoring

Sysmon is a tool that can be used to monitor system activity on Windows systems. It records various types of events, such as process creation, network connections, and registry changes, and stores them in the Windows Event Log. Security analysts can use this information to detect and investigate malicious activity on a system.

One way that malware can evade …

UPX: Ultimate Packer for Executables Packers

UPX is a tool that is used to compress and encrypt executables in order to make them smaller and more difficult to reverse engineer. UPX is free to use, portable, and can be extended with additional features. It is known for its high performance and compatibility with a wide range of executable formats. UPX is commonly used by software developers …

MPRESS Packers

MPRESS is a free packer. It makes programs and libraries smaller, and decrease start time when the application loaded from a slow removable media or from the network.

It uses in-place decompression technique, which allows to decompress the executable without memory overhead or other drawbacks; it also protects programs against reverse engineering by non-professional hackers. Programs compressed with MPRESS …

Alternate EXE Packer Packers

EXE Packer is able to compress executable files (type EXE) or DLL-files. Already compressed files may also be decompressed with this program. There exist 12 different levels for file-compression. This program is also able to create backups of the files that shall be compressed.

If a file is compressed the physical file-size is reduced on the respective device. A …

FSG Packers

The free, simple FSG software compresses both small and large files. While it is popular and commonly used to hide malware code, it is also relatively simple to unpack through a decompression loop that writes the data to the final destination.

AsPack Packers

ASPack is an EXE packer created to compress Win32 executable files and to protect them against reverse engineering.

The solution makes Windows programs and libraries smaller up to 70% what leads to a reduction in the download time of compressed applications in local networks and the Internet because of their smaller size compared to uncompressed apps.

The ASPack …

PEtite Packers

Petite is a free Win32 (Windows 95/98/2000/NT/XP/Vista/7/etc) executable (EXE/DLL/etc) compressor. The compressed executables decompress themselves at run time and can be used just like the original non-compressed versions.

Petite also adds virus detection to the compressed executables; they will check themselves for infection every time they are executed.

.Net Reactor Packers

.NET Reactor is used to prevent reverse engineering by adding different protection layers to .NET assemblies. Beside standard obfuscation techniques it includes special features like NecroBit, Virtualization, x86 Code Generation or Anti Tampering.

NLS Code Injection Through Registry Process Manipulating

Dll injection through registry modification of NLS code page ID is a technique used by malware to inject a malicious DLL into a process by modifying the NLS code page ID in the registry.

There are two ways to accomplish this technique: 1. Calling the SetThreadLocale function and setting up an export function named NlsDllCodePageTranslation, where the main …

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