Finding and Identifying JScript/VBScript Callable COM Objects

November 7, 2019

Microsoft JScript and VBScript are two languages that can be used for initial code execution on a new target. This may be done through the use of a phishing payload that leverages .hta files or through the use of trusted binaries to execute a payload on a new target. The use of .hta files specifically…

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Discovering the Anti-Virus Signature and Bypassing It

October 24, 2019

In this post, I am going to go over how to find the specific Anti-Virus signature using manual testing and then show techniques that can be used to bypass them. I am a big fan of LOLBins so we are going to focus on the binary Regsvr32, which is a known binary that can be…

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Buying Internal Domain Access Again

October 3, 2019

So, this post is inspired by some very interesting research done by @mubix that you can read about here, as well as this amazing post by Tim Medin here. After reading Mubix’s post, I was whipped into a frenzy and purchased several domains. I realize that these posts are both several years old, but this idea has…

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Attacks on the Rise Through Office 365

September 17, 2019

Office 365 is the most popular line of digital services for businesses for a reason, but when it comes to cyberattacks, its ubiquity is creating challenges. If it seems like every week there’s a new headline about a large-scale hacking incident, it’s not a case of rampant fake news. According to the 2018 Symantec Internet Security…

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Three Most Common Security Flaws (and How to Fix Them)

August 27, 2019

When it comes to physical security, the most common things we see are hardware vulnerabilities or human error (through social engineering attacks, failure to follow security guidelines, or no knowledge of security protocols). We have successfully broken into everything from locally run neighborhood shops to banks, power plants, hospitals, factories, law firms, and everything in…

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Tracing DNS Queries on Your Windows DNS Server

July 16, 2019

During a recent engagement, I successfully deployed a wildcard Domain Name System (DNS) record in conjunction with Responder. Within minutes, a misconfigured host made a query for a non-existent DNS record and was poisoned into connecting to our Responder instance. Unfortunately, the account was privileged enough that domain compromise was achieved. The techniques and tools…

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On the possibility of obfuscating code using neural networks

June 11, 2019

In this blog post, I will cover the current state of my research investigating the possibility of using neural networks to hide shellcode. But before we dig in, I will provide a little background information. For those unfamiliar with neural networks, they are a type of computer system design that is inspired by how human…

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Owning O365 Through Better Brute-Forcing

May 14, 2019

TL;DR: User Enumeration is key. Done enumerating? Do more. The classic passwords still work. Once you get some credentials, get more. Office 365 (O365) has become a trend in organizations. More and more, administrators are offloading their mail to The Cloud™. No longer are admins shackled to their Exchange servers, executing patch after patch in…

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Current Security Trends in 2019

February 7, 2019

As the information security industry continues to mature, several things have changed, but many of the fundamental issues remain—even in the face of new technologies, threats, and regulations. Understanding and responding to current trends provides the opportunity for security and risk management leaders to better improve security, increase resiliency, and support the business. With renowned…

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Local Admin Access and Group Policy Don’t Mix

January 24, 2019

Having spent a career working with Group Policies, I thought now might be a good time to give an overview of it and I felt like doing a little writeup about Group Policies. I especially want to highlight why having admin access to clients can be really bad. It is important that everyone understands the weaknesses…

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