Unpacking Executables - The ESP Trick

April 2, 2018

Malware authors use many tricks to try to get past antivirus solutions. They can obfuscate strings or sign the malware as some other software. One of the more effective tricks is to use a packer to compress the malware, making it harder for antivirus software to detect it. As a malware analyst you should know about what packing is and how to unpack an executable. This article will talk about some of the basic packers and a neat trick that works to unpack most of them....

Reverse Engineering, Radare2, Hacking, x64dbg, Unpacking, mpress

Unpacking NanoCore Sample Using AutoIT

May 5, 2019

In this article I want to take a look at a Nanocore sample that I found on HybridAnalysis that is using a compiled AutoIT script as a packing technique. This article will go over how to detect if a sample is using AutoIT and how to analyze it. The hash for this sample is ad9f99ad687a8ae71a40fd589b028ef6194e35c7....

Reverse Engineering, Malware Analysis, Malware, Unpacking, Scripting, Automation, DotNET, DnSpy, AutoIT


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