Tag: Windows

Misc
by Aleksandar Milenkoski

Windows Insight: A New ERNW Repository

We are glad to announce the Windows Insight repository. The content of this repository aims to assist efforts on analysing inner working principles, functionalities, and properties of the Microsoft Windows operating system. This repository stores relevant documentation as well as executable files needed for conducting analysis studies.

Some of the content of this repository has been created in the course of a project named ‘Studie zu Systemaufbau, Protokollierung, Härtung und Sicherheitsfunktionen in Windows 10 (SiSyPHuS Win10)’ (ger.) – ‘Study of system design, logging, hardening, and security functions in Windows 10’ (eng.). This project has been contracted by the German Federal Office for Information Security (ger., Bundesamt für Sicherheit in der Informationstechnik – BSI). The work planned as part of the project is conducted by ERNW GmbH, starting in May 2017.

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Events
by SadProcessor

Troopers & Chill…

As promised in my previous post, I am back for an overview of the Troopers19 – Active Directory related talks… Videos have been published and it’s popcorn time… So if you are into stories about Kingdoms and Crown Jewels, grab your loved one [or a drink…] and turn the lights down low, ’cause tonight it’s “Troopers & Chill…”

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Events
by Aleksandar Milenkoski

TROOPERS19 Training Teaser: Insight Into Windows Internals

Windows 10 is one of the most commonly deployed operating systems at this time. Knowledge about its components and internal working principles is highly beneficial. Among other things, such a knowledge enables:

  • in-depth studies of undocumented, or poorly documented, system functionalities;
  • development of performant and compatible software to monitor or extend the activities of the operating system itself; and
  • analysis of security-related issues, such as persistent malware.

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Events
by SadProcessor

The Dog Whisperer’s Handbook

Generally speaking, I’m more of a Cat type of guy, but I have to say I really love BloodHound. And if you do too, you are in for a treat…
Last week, the ERNW Insight Active Directory Security Summit took place in Heidelberg. (More Info)
For this occasion, @Enno_Insinuator asked me if I would like to deliver a BloodHound Workshop, and of course I accepted the challenge…

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Building
by Timo Schmid

Diving into EMET

Last week, we decided to take a look onto the EMET library provided by Microsoft. This library is intended to introduce several security features to applications which are not explicitly compiled to use them.

It also adds an additional layer to protect against typical exploiting techniques by filtering library calls, preventing usage of dangerous functions/components and inserting mitigation technologies.

As EMET is already a target for many researchers, we currently only started to get an overview of it’s structure and how the different components are interacting with each other. Today we would like to share some of our results with you.

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Breaking
by Dominik Phillips

PFX Profiles in Microsoft’s System Management Server

In a recent assessment, we had to evaluate how Microsoft’s System Management Server (SMS) certificate management solution (CMS) stores and handles certificates. This question came up because sensitive, encrypted user certificates were to be stored in the SMS CMS. Due to the sensitivity of the handled certificates, we assessed the protection capabilities of the certificate management solution against extraction attempts from a local attacker with administrative privileges.

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