2016-030: Defending Against Mimikatz and Other Memory based Password Attacks

In the last few years, security researchers and hacker have found an easy way of gaining access to passwords without the use of dumping the Windows hash table.
When improperly configured, the passwords are stored in memory, often in plain text.

This week, we discuss Mimikatz, and methods by which you can protect your environment by hardening Windows against such attacks.

Links to blogs:
https://www.praetorian.com/blog/mitigating-mimikatz-wdigest-cleartext-credential-theft
http://blog.gojhonny.com/2015/08/preventing-credcrack-mimikatz-pass-hash.html
https://jimshaver.net/2016/02/14/defending-against-mimikatz/
 Praetorian Report on pentests: http://www3.praetorian.com/how-to-dramatically-improve-corporate-IT-security-without-spending-millions-report.html
Direct Link: http://traffic.libsyn.com/brakeingsecurity/2016-030-Defense_against_Mimikatz.mp3
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2016-029: Jarrod Frates, steps when scheduling a pentest, and the questions you forgot to ask...

Jarrod Frates has been doing pentests as a red-team member for a long time. His recent position at InGuardians sees him engaging many companies who have realized that a typical 'pentest puppymill' or pentest from certain companies just isn't good enough.

Jarrod has also gone on more than a few engagements where he has found the client in question has no clue of what a 'real' pentest is, and worse, they often have the wrong idea of how it should go.

This week, I sat down with Jarrod, and we talked about what needs to occur before the pentest, even before you contact the pentesting firm... even, in fact, before you should even consider a pentest. 

We discuss what a pentest is, and how it's different from a 'vulnerability assessment', or code audit. Jarrod and I discuss the overarching requirements of the pentest (are you doing it 'just because', or do you need to check a box for compliance).  We ask questions like

Who should be involved setting scope? 

Should Social Engineering always be a part of a pentest?

Who should be notified if/when a pentest is to occur?

Should your SOC be told when one occurs?

What happens if the pentest causes incident response to be called (like if someone finds a malware/botnet infection)?

And how long do you want the engagement to be?

And depending on the politics involved, these things can affect the quality of the pentest, and the cost as well...

It was a great discussion with Jarrod, a seasoned professional, and veteran of many engagments. If your organziation is about to engage a company for a pentest, you'd be wise to take a moment and listen to this.

Direct Link: http://traffic.libsyn.com/brakeingsecurity/2016-029-Jarrod_Frates-What_to_do_before_a_pentest_starts.mp3

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2016-028: Cheryl Biswas discusses TiaraCon, Women in Infosec, and SCADA headaches

Long time listeners will remember Ms. Cheryl #Biswas as one of the triumvirate we had on to discuss #mainframes and mainframe #security. (http://traffic.libsyn.com/brakeingsecurity/2016-008-mainframe_secruity.mp3)

I was interested in the goings on at BlackHat/DefCon/BsidesLV, and heard about #TiaraCon (@tiarac0n on Twitter). I went to find someone involved to understand what it was all about, and Ms. Cheryl reached out. She's an #organizer and was more than happy to sit down with me to understand why it was started. This is it's inaugural year, and they already have some excellent schwag and sponsors. This is not just an event for ladies, but a way of #empowering #women, creating #mentorship opportunities, and assistance for people moving into the #infosec industry.

Also, since Ms. Cheryl's loves discussing #ICS and #SCADA problems and headaches, we got into the headaches, #challenges, and maybe some 'logical' solutions to fixing SCADA vulns... but does the logical approach work in a business sense?

TiaraCon official site:  http://tiaracon.org/ 

TiaraCon Dates: Thursday Aug 4 - Friday Aug 5

 

Direct Link: http://traffic.libsyn.com/brakeingsecurity/2016-028-Cheryl_Biswas_Tiaracon_ICSSCADA_headaches.mp3

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2016-027: DFIR conference, DFIR policy controls, and a bit of news

Mr. Boettcher is back!  We talked about his experiences with the #DFIR conference, and we get into a discussion about the gap between when incident response is and when you're using #digital #forensics. Mr. Boettcher and I discuss what is needed to happen before #incident #response is required.

We also discuss the Eleanor malware very briefly and I talk about finding Platypus, which is a way for you to create OSX packages using python/perl/shell scripts.

Platypus:  http://sveinbjorn.org/platypus

Eleanor Malware on OSX:

https://www.grahamcluley.com/2016/07/mac-malware-uses-tor-obtain-access-systems/

Direct Link: http://traffic.libsyn.com/brakeingsecurity/2016-027-DFIR_policy_controls.mp3

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2016-026-powershell exfiltration, hiring the right pentest firm, and

 Adam Crompton (@3nc0d3r) and Tyler Robinson (@tyler_robinson) from Inguardians came by to fill in for my co-host this week. We talk about things a company should do to protect themselves against data exfil.

Adam then shows us a tool he's created to help automate data exfil out of an environment. It's called 'Naisho', and if you're taking the 'Powershell for Pentesters' class at DerbyCon, you'll be seeing this again, as Adam will be co-teaching this class with Mick Douglas (@bettersafetynet).

Tyler tells us about using Cobalt Strike for creating persistent connections that are more easily hidden when you are on an engagement.

 

Adam's demo can be found on our YouTube channel: https://youtu.be/rj--BfCvacY

Tyler's demo of Throwback and using Cobalt Strike can be found on our YouTube Channel:

 

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