Author Archives: Brent Huston

About Brent Huston

I am the CEO of MicroSolved, Inc. and a security evangelist. I have spent the last 20+ years working to make the Internet safer for everyone on a global scale. I believe the Internet has the capability to contribute to the next great leap for mankind, and I want to help make that happen!

Tool Review: Synalyze It! Pro for OS X

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Rounding out this week with another tool review for the Mac under OS X. Earlier this week, we reviewed our favorite disassembler, Hopper for OS X. Synalyze It! Pro is another invaluable tool that we depend on. This tool is a hex editor with some very very useful features in the GUI. Namely, it lets you “lasso” different bits of text and highlight them in different colors. While this might sound basic, it is amazingly useful for performing reverse engineering of protocols and other deep-level analysis tasks of textual data.

Recently, we have been doing quite a bit of protocol testing in the lab and this tool has proven itself again and again as invaluable. My favorite feature of the tool is available by highlighting some piece of data and right clicking to bring up a menu, then selecting “compare code pages”. This brings up a window in which the highlighted data is run through a bunch of encoding/decoding schemes and presented to you both as ASCII and as hex. This makes reversing simple encoding on text as easy pie and as quick as swatting a fly. In my recent protocol work, this was a feature I used over and over again to identify various components of the data stream and figure out how each was encoded as a part of a bigger puzzle.

Another feature we have come to love is the “Show Checksums” feature. This feature displays a wide variety of checksums for the data that is highlighted and updates the checksums in realtime. This makes it pretty easy to figure out if different fields are included in the protocol’s checksum activities and leads to faster, cleaner reversing. However, I do have a couple of things I would like to see as future features for this capability. For one, I would like to see additional checksum mechanisms added and perhaps even an interface for creating your checksum scripts or equations. Additionally, I would really like it if you could get realtime updates, but with a mechanism for selecting multiple data elements and not just single strings. I really thought this would work, but could not seem to selections to “stick” so that I could add multiples. 

The real power of the tool is in the creation of the “grammar files”. This is an easy to use, intuitive and powerful mechanism for reversing. I still need to practice a bit more with the grammar definition mechanisms, but I can see where this will grow the product’s usefulness rapidly. The grammar definition could lend itself to a better toolbox in the GUI. It might be easier for beginners to learn to master this capability if an set of quick and easy tools were easily available without a bunch of menu navigation. However, the feature is still excellent and the tool remains a very powerful addition to our toolbox. 

The link to the App Store has a variety of screenshots of the product if you want to check it out. The product retails for $25 in the App Store and a non-Pro version is available for $5 – however, note that it lacks many features of the Pro version that make it such a useful tool. 

PS – MSI has no affiliation or relationship with the product and/or the developers. 

Tool Review: Hopper Disassembler for OS X

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I have recently been playing with Hopper, a disassembler for Mac OS X, quite a bit. The tool is essentially a mid-line tool for working to reverse engineer code. It is more accessible on the mac than firing up a VM and using the venerable OllyDbg and the interface is quite a bit more elegant and user friendly. It is even mid-line in price, coming in between Olly, which is free, and IDA Pro which can run over a thousand dollars per license. If you hack stuff, reverse stuff or study malware on the Mac, the $60 price point is likely to make this a big winner for your budget. The app store link for the tool, in case you want to check it out, is here. 

In terms of use, the tool does exactly what you expect from the description – it disassembles binaries into assembler and makes exploration of the deeper nuances of the code accessible. The newest release supports ARM, 32 & 64 bit ELF and iOS Mach-O. These add to the existing support for the standard Intel platforms of Mac OS X and Windows binaries, making this an all around useful tool for doing the basics. The flow control graphing, colorized interface and intuitive controls make the tool use less complex than Olly and IDA Pro. 

One of things I would like to see in future versions of the tool would be a detector for encoded binaries and support for some of the basic decoding tools to make analysis of obfuscated applications a bit quicker, easier and more intuitive. This a common issue among disassemblers and shows that we have a way to go to improve these products as the reverse engineering and malware study tool sets improve and mature over time. Overall though, that’s about the ONLY complaint I have about Hopper. It’s an amazingly versatile and useful tool at an incredible price. Truly, it is a worthwhile investment if you want to learn more about assembler, the inner workings of code and beginning malware analysis. You can’t go wrong with this one.

Lastly, I would like to thank the author of Hopper, Vincent Benony for his work on this tool and for his engagement with the infosec community on Twitter. Seriously, he is great. He responds quickly to questions and requests, plus provides great insights into where he is taking the product next. 

PS – If you want to see what the GUI looks like, there are a wide variety of screenshots in the App Store at the link above.

PSS – MSI has no affiliation or relationship with the product and/or the developers. 

CMHSecLunch Announcement

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We wanted to take a moment and send out a special announcement to our Columbus, Ohio area readers. Brent Huston is pulling together a monthly casual event for IT and InfoSec focused folks in our area. He posted this a few days ago to Twitter (@lbhuston):

#CMHSecLunch 1st attempt – Monday, Nov 12, 11:30 -1pm at Tuttle Mall food court. Informal lunch gathering of infosec geeks. Be There!

We invite all of our local readers to attend. Just have a casual lunch with infosec friends and great conversations. No sign up, no membership fees, no hassle, no fuss. If you can make it, cool, if not, also cool. So, if you have time, drop in and break bread. We hope to see you there.

Let us know on Twitter or in the comments if you have feedback. 

Thanks for Another Great ICS/SCADA Security Symposium

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Thanks to all who helped make the ICS/SCADA Security Symposium fantastic again this year. Great conversations, excellent content and such friendly discussions among peers and concerned parties. 

Next year, we plan to open the event to attendees from throughout the midwest and hope to get even more participation from manufacturing and those who support critical infrastructures. 

Thanks again for all of the hard work that Connie, Chris and the rest of the organizers did to make the event possible. Most of all, thank you for attending, participating and trusting us (and each other) to create such an amazing process of open dialogue. You are all heroes in my book!

Thanks to NEOISF & Ohio State Office of the CIO

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Last week we had a great time in Cleveland speaking at the North East Ohio Information Security Summit. Thanks to the folks who came out to hear us speak and to the great staff of NEOISF for making the event such an amazing thing for all who attend. We look forward to next year!

Thanks, as well, to the Ohio State University office of the CIO. We were pleased to participate in the Information Security Day sponsored by the university and Battelle. Thanks to all who attended that event with the threat of Hurricane Sandy looming large. It was a fantastic interaction with some of the next generation of infosec folks and some of the awesome members of the CMH InfoSec community. Thanks for having us participate and especially for asking us to keynote. 

The slide decks for both of these talks are available by request. If you would like to have a copy or set up a time to discuss them, have them presented to your team or engage with us about the content either drop us a line in the comments, reach out on Twitter (@lbhuston) or give your account executive a call at (614) 351-1237 ext 215.

Some pictures from the events are available here:

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NEO Summit – Picture courtesy of Greg Feezel (Thanks Greg!!!)

Ohio State Information Security Day

ICS/SCADA Security Symposium Reminder

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COLUMBUS, Ohio October 9, 2012 – The second annual ICS/SCADA Security Symposium, to be held November 1 2012 in Columbus, is designed to serve as a level set for teams and organizations who are actively managing production ICS/SCADA environments. Once again, this full day session will include best practices advice, incident response, detection techniques and a current threat briefing focused on ICS/SCADA providers. Presenters will cover a variety of topics about what is working, what is not working so well in terms of information security, network protection and trust management. To learn more about the event and to see if you qualify to attend, please contact us via email (info<at sign>microsolved(<dot>)com) or via phone by calling 614.351.1237 ext 215. Chris Lay (@getinfosechere) is handling the invitee list for the event and will be happy to discuss the event with you in more detail. Attendance is free of charge, meals will be provided and a limited number of seats are still available if you qualify.

Surface Mapping Pays Off

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You have heard us talk about surface mapping applications during an assessment before. You have likely even seen some of our talks about surface mapping networks as a part of the 80/20 Rule of InfoSec. But, we wanted to discuss how that same technique extends into the physical world as well. 

In the last few months, we have done a couple of engagements where the customer really wanted a clear and concise way to discuss physical security issues, possible controls and communicate that information to upper management. We immediately suggested a mind-map style approach with photos where possible for the icons and a heat map approach for expressing the levels of attack and compromise.

In one case, we surface mapped a utility substation. We showed pictures of the controls, pictures of the tools and techniques used to compromise them and even shot some video that demonstrated how easily some of the controls were overcome. The entire presentation was explained as a story and the points came across very very well. The management team was engaged, piqued their interest in the video and even took their turn at attempting to pick a couple of simple locks we had brought along. (Thanks to @sempf for the suggestion!) In my 20+ years of information security consulting, I have never seen a group folks as engaged as this group. It was amazing and very well received.

Another way we applied similar mapping techniques was while assessing an appliance we had in the lab recently. We photographed the various ports, inputs and pinouts. We shot video of connecting to the device and the brought some headers and tools to the meetings with us to discuss while they passed them around. We used screen shots as slides to show what the engineers saw and did at each stage. We gave high level overviews of the “why” we did this and the other thing. The briefing went well again and the customer was engaged and interested throughout our time together. In this case, we didn’t get to combine a demo in, but they loved it nonetheless. Their favorite part were the surface maps.

Mapping has proven its worth, over and over again to our teams and our clients. We love doing them and they love reading them. This is exactly how product designers, coders and makers should be engaged. We are very happy that they chose MSI and our lab services to engage with and look forward to many years of a great relationship!

Thanks for reading and reach out on Twitter (@lbhuston) or in the comments if you have any questions or insights to share.

NE Ohio Security Summit – Come Out & See Us!

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The NE Ohio Security Summit kicks off tomorrow and runs through Friday evening. Chris Lay (@getinfosechere) and myself (@lbhuston) will be in attendance. I will be speaking on Thursday afternoon about Detection in Depth and some other models for doing nuance detection around the enterprise. 

While you are there, check out the booth of Managed HoneyPoint partner Hurricane Labs, and hit Chris up for a cup of coffee and a friendly discussion about our services, partnerships and engagements.

We look forward to a great event and give much thanks to the folks who put this amazing Summit together. They are an awesome team, with a ton of great help and a can-do attitude. Their hard work and dedication is what makes this one of the best Summit events of the year. Stop them in the hall and give them a big thanks for all they do!

As always, thanks for reading. If you mention you read the post and use the code word “snazzy” when you come up to chat, I just might have a little special treat for you. 🙂

PS – My talk is in Bordeaux B at 2:30 PM Eastern. See ya there! 

Ask The Security Experts: Mobile Policy

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This time around, the experts offer insights on this question:

Q: “Dear Experts, what are the key things I need to keep in mind when I write my company’s mobile security policy?” — MK

John Davis starts us off with:

I would say the most important thing is to actually write your own policy; don’t just copy a generic mobile security policy from the Internet and adopt it as your own. For a mobile security policy to be effective, it needs to be tailored to meet your organizations particular information security requirements and also needs to reflect the reality of mobile device use at your organization. It won’t do you much good to forbid using mobile devices for business purposes if you have no mechanisms in place to prevent or detect such uses. Effective information security policy, like effective statute law, is both practical and enforceable.

Adam Hostetler added:

Keep in mind what kind of current security policies you have, and try to apply that to the mobile sphere. Users need to understand that they are connecting an additional computer to the network, and not just a “phone”. Keep in mind also what kind of deployment you are using. Is it bring your own device, or is it company provided? There will be different policies and procedures for each method and possible user backlash depending on how you are doing this.

As always, thanks to the experts for weighing in, and to the readers for the questions. Keep them coming!

Recovering Data from Dead Hard Drives

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We caught this post on Lifehacker a few days ago and thought they did a pretty good job of handling a pretty frequent question. How many times have you been asked about data recovery? For us, we always ask “You have that backed up, right?”, in return. 

Sadly, few people seem to backup their data, even though that is one of the basic foundations of protecting information. 

If you are or know someone who gets into this predicament, we hope this approach helps.

In the meantime, where did you put your backup disk? You have one, right??? 🙂