Presentation: Exploiting MS15-034 In PowerShell
Last night I had the opportunity to present at the first Melbourne PowerShell Meetup. I want to thank those who attended and in particular, thank David O’Brien for his work in organising such a great event, thanks also go to Versent and Level 3 for providing the food and the event space.
My presentation, Exploiting MS15-034 and working with TCP connections in PowerShell was first up for the night and extremely well received.
As promised, you can find the PowerPoint slides here, or up on SlideShare. You can find the code from the demonstrations up here on GitHub.
Content From Vic .Net Presentation
Last week I had the wonderful pleasure of presenting to the Victorian .Net User Group. I want to thank Mahesh, the other organizers and SportsBet for the wonderful facilities.
I have been extremely lucky to present to a wide range of audiences on the security challenges that PowerShell brings to our organisations. From security groups to architecture to infrastructure and now development focused groups.
As promised, here is the content, code and links to more information.
You can download the PowerPoint slides here, or find them on SlideShare here.
If you want to take a look at the "malware" script that I created, you can find that up GitHub here. The repository includes two files, an example of the Excel spreadsheet which contains a macro that would infect a system, and then the SystemInformation.ps1, which is the actual "malware" that is the basis for all of my demonstrations.
I mentioned Matt Graeber's write up on PowerWorm, and this can be found here at his site, www.exploit-monday.com. Matt has rewritten the code to be more safe, as well as provide some tools to detect and remove PowerWorm infections and this can be found on his GitHub.
Another important set of resources are the 5 part series from the Microsoft's Hey Scripting Guy.
- Use PowerShell for Network Host and Port Discovery Sweeps
- Use PowerShell to Security Test SQL Server and SharePoint
- Use PowerShell to Discover Network Information from Shares
- Use PowerShell to Duplicate Process Tokens via P/Invoke
- Use PowerShell to Decrypt LSA Secrets from the Registry
I recommend reading the final two parts, I have made use of the code from these within SystemInformation.ps1.
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Kieran
Upcoming Presentation at Victorian .Net User Group
I am excited to announce that I will be presenting PowerShell Shenanigans – Lateral Movement with PowerShell, to the Victorian .Net User Group.
This presentation will be an updated version of the one from CrikeyCon 2014, BIG and OWASP Brisbane.
Information about the session is listed below, and you can register here at Eventbrite.
PowerShell Shenanigans (Lateral Movement with PowerShell)
PowerShell, the must have tool and the long overlooked security challenge. Learn how PowerShell’s deep integration with the Microsoft platform can be utilized as a powerful attack platform within the enterprise space. Watch as a malicious actor moves from a compromised end user PC to the domain controllers and learn how we can begin to defend these types of attacks
About the Speaker
Specialising the automation of Windows Server environments, and with 10 years’ experience in the managed services and financial services sectors, Kieran Jacobson recently moved from sunny Brisbane to Melbourne to pursue a role as a Technical Lead with Readify. Kieran has always been a passionate member of the technical community, beginning as a Microsoft Student Ambassador and then as a presenter at a number of conferences including Infrastructure Saturday, CrikeyCon and Risky Business. Kieran maintains the Posh Security website, http://poshsecurity.com, with content ranging from automation, architecture, troubleshooting and software development.
Event Details
- When: 5:30 PM, Tuesday, 7th April 2015
- Where: Sportsbet, Level 15, 367 Collins Street, Melbourne
- RSVP: Register attendance at http://vicdotnet-apr2015.eventbrite.com.au
Hacking with a rubber duck
On the weekend I had the pleasure to present at CrikeyCon 2015. I want to thank everyone involved including the organizers; the other speakers; our wonderful MC, Patrick Gray from Risky Business; and of course the attendees!
This year I chose something a bit different to present on, the Hak5 Rubber Ducky. I started with two (and one failed,) demonstrations in the morning before setting up in the events area to show off some more advanced demonstrations.
As promised, I am posting up my content for everyone to make use of it.
Firstly, the PowerPoint slides can be downloaded here, or viewed on SlideShare here (and below).
I have setup a separate page on this side, Rubber Ducky, where you can find the scripts/payloads and a description with each.
There are a number of links which I found to be extremely useful.
If you have any questions, comments, or feedback please feel free to leave a comment, contact me via this site or send a message to me on Twitter.
Kieran
Presenting at CrikeyCon 2015
I wanted to quickly let everyone know that I will be presenting at CrikeyCon again this year. Once again I am excited to be presenting, as well as nervous.
This year I will be doing something a little different from my usual presentations. This year I will be talking about the Hak5 USB Rubber Ducky. This is something I have wanted to show off and get more people interested in for a number of years, and am extremely excited by this opportunity.
My presentation this year will be shorter than usual, with only 15 minutes to perform a quick overview and some warm up demonstrations. I will then move to the events area along side my good friend Ash, and the always exciting Robert Winkel, where I will be showing off some more advanced demonstrations.
There is an amazing list of speakers again this year, and once again Patrick Gray will be the MC.
Last year, tickets sold out quickly, if you want to attend, then visit the Eventbrite page today to secure yours.
Links for PowerShell Shenanigans
I thought it might be easier for those wanting the links from my resent presentation if I provided a list of them here, so you didn't have to go through the presentation to find them.
My code on GitHub: http://j.mp/1i33Zrk
QuarksPWDump: http://j.mp/1kF30e9
PowerSploit: http://j.mp/1gJORtF
PowerWorm Analysis: http://j.mp/RzgsHb
PowerBleed: http://j.mp/1jfyILK
Microsoft PowerShell/Security Series:
Practical Persistence in PowerShell: http://j.mp/1mU6fQq
Bruteforcing WinRM with PowerShell: http://j.mp/1nBlwX2
I hope you all enjoy!
Brisbane Infrastructure Group Presentation
On Tuesday I presented to the Brisbane Infrastructure Group a similar presentation to the one at CrikeyCon. This presentation contains updated information, some defence measures and just better information overall.
You can download the slide deck here, and the SlideShare can be found here (and embedded below).
Risky Business: Featuring ME! Kieran Jacobsen
Patrick Gray interviewed me for Risky Business on Wednesday, and on Friday, the whole world got to hear the result. You can find the interview here.
Here is a brief description from the site:
On this week's show we have a look at PowerShell, the Microsoft sorta scripting language admin thingy. As it turns out, PowerShell can be an attacker's best friend when it comes to lateral movement through a network. We'll chat with Kieran Jacobson about that in this week's feature interview. He did a cracker presentation at CrikeyCon where he demo'd owning a domain controller and dumping all its creds with something like five lines of PowerShell. I mean, there are caveats there, but wow... the demotime was food for thought.
I am still working on Video/Paper, and have also been side tracked on another super awesome use of PowerShell + WinRM.
Thank you all for all of your feedback over the past week!