Tools | RobWillis.info

Revisiting Purple Teaming AD with BloodHound CE & AD-Miner

robwillisinfo — Fri, 05 Dec 2025 01:07:35 +0000

A few months ago, I published a blog post that involved managing Bloodhound CE with Docker Compose: Purple Teaming AD with BloodHound CE & AD-Miner Since then, BloodHound CE has seen some pretty significant improvements, including new tools to simplify container management. Because of this, I wanted to revisit this setup and put together an […]

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Installing Omarchy On VMware Workstation

robwillisinfo — Wed, 05 Nov 2025 11:12:29 +0000

If you’re trying to run Omarchy on VMware Workstation, you might be experiencing some issues with the GUI after what appears to be a successful installation. With the basic graphics option configured on the virtual machine, Omarchy will boot but then fall to a black screen right after entering the password. Enabling accelerated graphics gets […]

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Ultimate Local AI Setup Guide: Ubuntu, Ollama, & Open WebUI

robwillisinfo — Wed, 14 May 2025 16:30:07 +0000

Intro & Background It seems safe to say that artificial intelligence (AI), particularly large language models (LLMs), are here to stay. As a cybersecurity professional, it has been pretty easy to find use cases for AI in my daily work, from general penetration testing and writing tools to forensics and reverse engineering. However, as with […]

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Purple Teaming AD with BloodHound CE & AD-Miner

robwillisinfo — Wed, 12 Mar 2025 13:42:51 +0000

BloodHound is one of those tools that everyone in the industry seems to have heard of and it tends to generate a buzz amongst engineers anytime it’s brought up. This reputation is well-deserved with it being such a game changer when it comes to attacking and auditing Active Directory domains. Every organization running Active Directory […]

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Introducing Invoke-EncryptionSimulator: A PowerShell Tool for Simulating Late-Stage Ransomware Attacks

robwillisinfo — Thu, 14 Mar 2024 04:53:37 +0000

Invoke-EncryptionSimulator Invoke-EncryptionSimulator is designed to be a simple and safe way to emulate the encryption stage of a ransomware deployment to aid in development and testing of controls focusing on file system level changes rather than process related telemetry. Invoke-EncryptionSimulator is designed to be a simple and safe way to emulate the encryption stage of […]

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Analyzing & Detecting IIS Backdoors

robwillisinfo — Sat, 05 Nov 2022 08:00:12 +0000

IIS Extensions As Backdoors Microsoft recently published an interesting blog explaining how they’ve noticed a new trend where attackers have been leveraging Internet Information Services (IIS) extensions to covertly backdoor Windows servers: https://www.microsoft.com/security/blog/2022/07/26/malicious-iis-extensions-quietly-open-persistent-backdoors-into-servers/ The Microsoft post contains a wealth of information on this topic, but I really wanted to dig through the specifics in order […]

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New Tool! Invoke-RPCMap: PowerShell Script for Remote RPC Service Enumeration

robwillisinfo — Mon, 27 Jun 2022 02:13:00 +0000

Invoke-RPCMap Invoke-RPCMap can be used to enumerate local and remote RPC services/ports via the RPC Endpoint Mapper service. This information can useful during an investigation where a connection to a remote port is known, but the service is running under a generic process like svchost.exe. This script will do the following: Create a local log […]

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Revisiting & Revising An Old PowerShell Tool – Quickly Find The Largest Files

robwillisinfo — Tue, 06 Apr 2021 07:05:37 +0000

A few years ago I wrote a script to help find the largest files on a drive using PowerShell without the need to install any additional software. This script was extremely useful for quickly narrowing in on files that may be easy to remove in order to help free up disk space, particularly in situations […]

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VMware vCenter CVE-2021-21972 Scanner

robwillisinfo — Sat, 27 Feb 2021 10:31:52 +0000

In this post, I am releasing a PowerShell POC script that will scan the specified target hosts and attempt to detect those that are vulnerable to VMware vCenter CVE-2021-21972. You can find the script, Invoke-CVE-2021-21972-Scan.ps1, on my github here: https://github.com/robwillisinfo/VMware_vCenter_CVE-2021-21972 The script executes in the following order: Create a log file, default log name is […]

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Invoke-Decoder – A PowerShell script to decode/deobfuscate malware samples

robwillisinfo — Sun, 02 Aug 2020 03:57:08 +0000

I have been spending a lot of time reviewing PowerShell based attacks and malware over the last few months and I wanted to take some time to really understand how some of the common obfuscation techniques really work under the hood. The best way for me to learn more about something like this is to […]

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