Earlier this year I submitted three sessions to the IT DEV CONNECTIONS conference and to my big surprise all of them was accepted. I was hoping that at least one of them was accepted, but all three was, and that is just incredible. I must admit at first that I was a bit scared, since […]
Posts tagged security
Defense-In-Depth write-up
TL;DR .BGI files can be sent on mail as attachment and can execute code when opened.Requires that BGinfo.exe has been run on the remote machine once. It will also bypass Outlook attachment protection (Fixed with Defense-in-depth patch from September 2017). PowerShell functions to generate BGI and VBSWebMeter here: https://github.com/api0cradle/BGInfo I was acknowledged on […]
Bypassing Application Whitelisting with BGInfo
TL;DR BGinfo.exe older than version 4.22 can be used to bypass application whitelisting using vbscript inside a bgi file. This can run directly from a webdav server. UPDATE: 22.05.2017 AppLocker is still vulnerable with Bginfo 4.22. A blogpost about that here: https://msitpros.com/?p=3860 UPDATE: 19.06.2017 Microsoft has thanked me in their documentation for this finding. The […]
Accessing clipboard from the lock screen in Windows 10 #2
I received a lot of positive feedback on my previous post on accessing the clipboard from the lock screen using the wireless password field. https://msitpros.com/?p=3746 Just out of curiosity I tried other combinations on doing the same thing, and I found out another cool trick to do the same using the Narrator feature in Windows. […]
Accessing clipboard from the lock screen in Windows 10
I discovered something interesting that I wanted to be shared with the rest of the world. Before you read any further, I want you to know that I did send an email to MSRC (Microsoft Security Response Center) about this. The answer I got was this: <quote>«In general, MSRC does not consider issues that require […]
Creating Phishing bait with PowerShell
This post is all about how I created a PowerShell script to automate the process of generating USB sticks used in a Social engineering attack. The goal with the attack was to measure if the employees inserted the USB sticks and opened any documents. It was not a goal to exploit the users. The Manual way So […]