Search Evasion Techniques
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157 item(s) found so far for this keyword.
File Splitting Antivirus/EDR Evasion
An old trick consists to split the malicious file into different parts and analyse all of them separately with and AV. The chunk where the detection is still being triggered is actually the part of the file that need to change to evade the antivirus software you are targeting.
GetLocalTime, GetSystemTime, timeGetTime, NtQueryPerformanceCounter Sandbox Evasion Anti-Debugging
When a debugger is present, and used to single-step through the code, there is a significant delay between the executions of the individual instructions, when compared to native execution.
Obscuring Control Flow Anti-Disassembly
Obscuring control flow is an anti-disassembling technique that involves using methods of flow control that are difficult or impossible for disassemblers and debuggers to follow. This can make it more difficult for analysts to understand the program's behavior and can also make it more difficult for other tools, such as debuggers, to accurately interpret the program.
One example of …
Jump With Same Target Anti-Disassembly
Jump with the same target is an anti-disassembling technique that involves using back-to-back conditional jump instructions that both point to the same target. This can make it difficult for a disassembler to accurately reconstruct the original instructions of the program, as the disassembler will not be able to determine the intended behavior of the program without actually executing it.
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Process Reimaging Process Manipulating
Process Reimaging is a technique used to evade detection by endpoint security solutions. It is a variation of the Process Hollowing or Process Doppelganging techniques, which are used to execute arbitrary code in the context of another process.
The Windows operating system has inconsistencies in how it determines the locations of process image FILE_OBJECTs, which can impact the ability …
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 …