Search Evasion Techniques
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User Interaction (Are you human?) Sandbox Evasion
You can get an advantage against sandboxes by using user interaction techniques. For example, The average user has a username and password and as long as the user you are targeting does not enter their password correctly, you can prevent your malware execution and bypass the possible sandbox control.
Anti-UPX Unpacking Others
Anti-UPX Unpacking is the technique to prevent malware from being unpacked by tools like UPX. UPX packed binary indicates that the section names starting with UPX followed by a number (UPX0 and UPX1) and the string “UPX!” at the end of the PE header. This UPX reference structure is located at the end of the PE header and the header …
Misusing Structured Exception Handlers Anti-Disassembly
Misusing Structured Exception Handlers is a technique used by malware to make it more difficult for security analysts to reverse engineer the code. Structured Exception Handlers (SEH) are functions that are used to handle exceptions in a program. These can be misused by malware to fool disassemblers and make it harder to analyze the code. One way this is done …
Thwarting Stack-Frame Analysis Anti-Disassembly
Thwarting Stack-Frame Analysis is a technique used by malware to make it more difficult for security analysts to reverse engineer and analyze the code. A stack frame is a collection of data associated with a function, including local variables, arguments passed to the function, and the return address. Disassemblers can use information from the stack frame to understand a function's …
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 …
ExeStealth Packers
ExeStealth is a tool that encrypts files to avoid detection and hacking. Designed by WebToolMaster, this free software is simple to implement and one of the best anti-hacking tools on the market, which also makes it effective at hiding malware code in your system.
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.
DTPacker Packers
DTPacker is a .NET packer or downloader which although seeing considerable variety in the first stage, uses a second stage with a fixed password as part of the decoding.
The main difference between a packer and a downloader is the location of the payload data which is embedded in the former and downloaded in the latter. DTPacker uses both …