Search Evasion Techniques
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Inserting Garbage Bytes Anti-Disassembly
Garbage bytes are random or meaningless data that is inserted into a program's code in order to make reverse engineering and analysis more difficult. This is an anti-disassembling technique, as the insertion of these random bytes can cause disassemblers to misinterpret the code and produce incorrect disassembly results.
The insertion of garbage bytes is usually used in conjunction with other …
Obfuscated Files or Information: Binary Padding Defense Evasion [Mitre]
Adversaries may use binary padding to add junk data and change the on-disk representation of malware. This can be done without affecting the functionality or behavior of a binary, but can increase the size of the binary beyond what some security tools are capable of handling due to file size limitations.
Binary padding effectively changes the checksum of the file …
File Melt Others
File melting is a technique that malware uses to delete itself after it has been installed on a system. This is often done in order to avoid detection by antivirus programs or other security measures. The process of file melting involves overwriting the file with random data, making it impossible to recover the original file or to detect the presence …
Themida Packers
Themida is a commercial known packer that embeds several features including anti-debugging, virtual machine emulation, encryption...
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Anti-debugger techniques that detect/fool any kind of debugger
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Anti-memory dumpers techniques for any Ring3 and Ring0 dumpers
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Different encryption algorithms and keys in each protected application
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Anti-API scanners techniques that avoids reconstruction of original import table
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Automatic decompilation and scrambling techniques in target application …
Constant Blinding Data Obfuscation
Constant blinding can be employed by malware authors to obfuscate their malicious code, making it harder for security researchers and antivirus software to detect and analyze the malware. By using constant blinding techniques, the malware code can be concealed, increasing its chances of evading detection and maintaining persistence on the target system.
Here's how constant blinding can be utilized in …