Portable Executable File Corruption Preventing Malware From Running

Important Disclaimer – YOU MUST READ FIRST! Portions of this article contain source code from the Windows Research Kernel. This code is the intellectual property of Microsoft Corporation. I am using this code under special license in this post under these grounds of the license agreement: You may distribute snippets of this software in research…


MalwareAnalysisForums.com is now Live

I enjoy posting these blog posts, but I want to really give back to the community that I’ve enjoyed learning so much from and I didn’t see a specific, dedicated, discussion board for malware analysis and research. I decided to create one and it is at https://malwareanalysisforums.com . It is currently invite-only but feel free…


Todd’s GIANT Intro of Windows Malware Analysis Tools

Purpose of this page This is a continuously updated page and it is never finished! I decided to go ahead and cover the tools I typically use for analyzing malware because although I’ve found lists elsewhere, I’ve found no real big collection with explanation and/or any type of discussion of these tools. It’s generally more…


Windows Special Folders: CSIDLs, KNOWNFOLDERID

Introduction As we’ve seen many times before, malware authors are always trying to get at important system folders on victim systems. Some reasons for this are: To locate and attack actual operating system files To impersonate or spoof system files or create files with similar names in an attempt to circumvent detection. For example –…


EquationGroup DoubleFantasy Part 1

Introduction EquationGroup has a malware called DoubleFantasy. Sounded interesting, so I decided to go ahead and attack it and find out what it’s all about. Supposedly Kaspersky said about EquationGroup, The Equation Group is probably one of the most sophisticated cyber attack groups in the world; and they are the most advanced threat actor we…


What is a Malware Analyst and Why will your organization need one very soon?

Introduction I predict within the next 5-10 years, the number of malware analyst, researcher, and reverse-engineer jobs is going to skyrocket. So what is a malware analyst, malware researcher, and/or malware reverse-engineer in the first place and why will they be in high demand? What is a Malware Analyst/Researcher/Reverse Engineer? First of all, the slashes…


Privacy – The problem and the solution

Introduction You may or may not know that privacy as we’ve known it is currently under an attack bigger than any the human race has ever seen before, other than perhaps the great flood. Companies like Facebook, Google, Microsoft, and most modern tech companies are recording as much about you as possible. Why? Because it…


The Ultimate List of Services which Respect your Privacy

Herein is a list of services which make an effort to respect privacy and do not sell your data. This list is starting out small and will continue to grow as I receive suggestions and find time to locate more services as well. I will not be posting services that I have not personally checked…


PortEx Analyzer

I wanted to mention a tool that I’ve found very helpful in analyzing Portable Executable (PE) files: PortEx Analyzer by Karsten Hahn. Actually, the first very noticeable difference between this program and so many others is the level of documentation. PortEx Analyzer is fully documented by Hahn and has a thorough readme and wiki as…


Inline Hook of a System Call via AppInit_DLLs Part 2– The Hook

For an introduction, please refer to Part 1 of this analysis. The Installer Still inside the same Lab11-02.dll as before, we can return back to DllMain and locate one more subroutine call, which takes us to the hook code, but this is incomplete knowledge since we haven’t yet seen how the hook even gets installed…