NetSPI Blog

Alex Poorman
October 29th, 2020

NetblockTool: The Easy Way to Find IP Addresses Owned by a Company

TL;DR Use NetblockTool to easily dump a unique list of IP addresses belonging to a company and its subsidiaries. Download the tool here: https://github.com/NetSPI/NetblockTool The Problem A problem that I was frequently running into for both offensive and defensive roles is determining the IP addresses that a company owns and uses. Traditionally, gathering a list […]

Karl Fosaaen
October 22nd, 2020

A Beginners Guide to Gathering Azure Passwords

It has been a while since the initial release (August 2018) of the Get-AzurePasswords module within MicroBurst, so I figured it was time to do an overview post that explains how to use each option within the tool. Since each targeted service in the script has a different way of getting credentials, I want users […]

Alex Poorman
September 24th, 2020

AutoDirbuster – Automatically Run and Save DirBuster Scans for Multiple IPs

If you’ve used OWASP’s DirBuster, you know it’s a great directory buster. Its speed and reliability make it one of the best directory busters currently available. However, it has one big limitation: it can only scan one target at a time. This is fine if you’re only attacking one target, but if you are attacking […]

Karl Fosaaen
August 17th, 2020

Lateral Movement in Azure App Services

We test a lot of web applications at NetSPI, and as everyone continues to move their operations into the cloud, we’re running into more instances of applications being run on Azure App Services. Whenever we run into an App Services application with a serious vulnerability, I’ll frequently get a ping asking about next steps to […]

Karl Fosaaen
July 29th, 2020

Get-AzPasswords: Encrypting Automation Password Data

Get-AzPasswords is a function within the MicroBurst toolkit that’s used to get passwords from Azure subscriptions using the Az PowerShell modules. As part of this, the function supports gathering passwords and certificates that are attached to automation accounts. These credentials can be stored in a few different ways: Credentials – Username/Password combinations Connections – Service […]

Karl Fosaaen
July 16th, 2020

Azure File Shares for Pentesters

For many years, pentester-hosted SMB shares have been a common technology to use during internal penetration tests for getting tools over to, and data off of, target systems. The process is simple: share a folder from your testing system, execute a “net use z: \\testingbox\tools” from your target, and run your tools from the share. […]

Karl Fosaaen
June 25th, 2020

Bypassing External Mail Forwarding Restrictions with Power Automate

During a recent Office 365 assessment, we ran into an interesting situation where Exchange was configured to disallow any external domain forwarding rules. This configuration is intended to prevent attackers from compromising an account and setting up forwarding for remote mail access and persistence. Part of this assessment was to validate that these configurations were […]

Austin Altmann
June 18th, 2020

Introduction to Hacking Thick Clients: Part 6 – The Memory

Introduction to Hacking Thick Clients is a series of blog posts that will outline many of the tools and methodologies used when performing thick client security assessments. In conjunction with these posts, NetSPI has released two vulnerable thick clients: BetaFast, a premier Betamax movie rental service, and Beta Bank, a premier finance application for the […]

Austin Altmann
June 11th, 2020

Introduction to Hacking Thick Clients: Part 5 – The API

Introduction to Hacking Thick Clients is a series of blog posts that will outline many of the tools and methodologies used when performing thick client security assessments. In conjunction with these posts, NetSPI has released two vulnerable thick clients: BetaFast, a premier Betamax movie rental service, and Beta Bank, a premier finance application for the […]