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Defending Active Directory Against Cyberattacks

November 22, 2019 Josh Bryant Leave a comment

Back in April of 2016, Zaid Arafeh, Clare Kearney, and I, recorded a 7 part series for the Microsoft Virtual…

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Hunting Webshells: Tracking TwoFace

September 9, 2019 Josh Bryant Leave a comment

Microsoft Exchange Servers are a high-value target for many adversaries, which makes the investigation of them during Incident Response vital.…

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The ABCs of Containment, Eradication, and Recovery

August 30, 2019 Josh Bryant Leave a comment

In the physical realm, a successful hunt ends with either a kill or a capture.  While some might enjoy the thrill…

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Best of Both Worlds: Blending Tactics from the Public and Private Sectors

Josh Bryant Leave a comment

Public and private enterprises face the same threats, and yet often have different approaches to defense. What if you could…

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The Hitchhiker’s Guide to Data Breaches

Josh Bryant Leave a comment

The results are in, you’ve been breached. It’s officially the worst day of your career. How will you handle what…

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Reducing the Exchange and Active Directory Attack Surface

February 12, 2019 Josh Bryant Leave a comment

Three years ago I wrote a document titled “Removing Exchange’s ability to impact Tier 0 and Tier 1” that was…

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Filed under: Active Directory, Cybersecurity, Exchange, Exchange 2010, Exchange 2013, Exchange 2016, Exchange 2019

FixTheExchange.com is 7 years old today!

August 31, 2018 Josh Bryant Leave a comment

How fitting that 7 years after I started this blog I would relaunch it on a new platform (more on…

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Hunting Webshells on Microsoft Exchange Server

May 8, 2017 Josh Bryant Leave a comment

Microsoft Exchange Servers are a high value target, making investigation of them during Incident Response vital, but where do you…

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Filed under: Cybersecurity, Exchange 2013, Exchange 2016

Join me at the 2017 SANS Threat Hunting and Incident Response Summit – April 18th and 19th

December 13, 2016 Josh Bryant Leave a comment

I’ll be presenting a brand new session titled “Hunting Webshells on Microsoft Exchange Server” at the 2017 SANS Threat Hunting…

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Filed under: Cybersecurity, DFIR, Exchange 2010, Exchange 2013, Exchange 2016

Exchange 2016 SP1 to run on Linux!

April 1, 2016 Josh Bryant Leave a comment

Ever since last month’s announcement that Microsoft SQL Server will be coming to Linux, quiet rumors have been floating around…

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Filed under: April Fools, Exchange 2016

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