NetSPI Blog

Jake Reynolds
May 16th, 2017

Beautifying JSON in Burp

Most penetration testers know the pain of trying to view and modify an unparsed JSON string. This Burp extension removes that burden and allows live editing of beautified JSON strings.

Alexander Leary
May 9th, 2017

Expanding the Empire with SQL

The core of PowerUpSQL is now in Empire. Let’s quickly go over how these modules work in Empire as a few changes had to be made for it to be integrated.

Ryan Gandrud
May 2nd, 2017

Targeting Passwords for Managed and Federated Microsoft Accounts

The Basics With the continual rise in popularity of cloud services, Microsoft launched their Azure cloud infrastructure in early 2010, which eventually went on to support their Virtual Machines, Cloud Services, and Active Directory Domain Services. There are two different ways a Microsoft domain can support cloud authentication; managed and federated. A federated domain is […]

Jake Reynolds
April 25th, 2017

SQL Injection to Help You Sleep at Night

If there’s anything to be learned from Gitlab’s recent downtime (which they handled amazingly well), it’s that production databases need to be pampered.  They aren’t something to play around with and as penetration testers that responsibility extends to us. Many companies will allow testing in production, it can be argued that it is the responsible […]

Alexander Leary
April 20th, 2017

Getting Started with WMI Weaponization – Part 6

Lets look at another practical example of weaponizing WMI using PowerShell. Earlier we went over how to create a custom WMI class. Using this class along with the Set-WmiInstance command we can create a class that we can then use to store files as Base64 Encoded strings.

Alexander Leary
April 18th, 2017

Getting Started with WMI Weaponization – Part 5

Establishing Persistence with WMI Like SQL, WMI can be setup with a set of Triggers. We can use these triggers to maintain persistence on a system by launching commands after a specified event is detected. These are stored in the root/subscription namespace and fall into two broad categories, Intrinsic Events and Extrinsic Events. Intrinsic Events […]

Alexander Leary
April 13th, 2017

Getting Started with WMI Weaponization – Part 4

Stealing the NTDS.dit File Remotely using the WMI Win32_ShadowCopy Class Dumping password hashes is a pretty common task during pentest and red team engagements. For domain controllers, it can be done a number of different ways including, but not limited to, DCSync (drsuapi), lsadump, and parsing the ntds.dit directly.  Sean Metcalf has already covered how […]

Alexander Leary
April 11th, 2017

Getting Started with WMI Weaponization – Part 3

Substantive changes to the configuration of a system can be made with WMI. These are often overlooked, as there are other and less obscure methods to accomplish the same goal. That said the ability to run these commands remotely through a different medium make these classes quite capable.

Alexander Leary
April 6th, 2017

Getting Started with WMI Weaponization – Part 2

A WMI class, such as Win32_Process is a grouping of like properties and methods. Using SQL as an analogy, a property is like a SQL column and a method is similar to a stored procedure.