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. This is an easy to use, intuitive and powerful mechanism for reversing. The real power of the tool is in the creation of the “grammar files”. I really thought this would work, but could not seem to selections to “stick” so that I could add multiples. 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. For one, I would like to see additional checksum mechanisms added and perhaps even an interface for creating your checksum scripts or equations. However, I do have a couple of things I would like to see as future features for this capability. 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. This feature displays a wide variety of checksums for the data that is highlighted and updates the checksums in realtime. 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.Īnother feature we have come to love is the “Show Checksums” feature. This makes reversing simple encoding on text as easy pie and as quick as swatting a fly. 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. 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”. 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. While this might sound basic, it is amazingly useful for performing reverse engineering of protocols and other deep-level analysis tasks of textual data. Namely, it lets you “lasso” different bits of text and highlight them in different colors. This tool is a hex editor with some very very useful features in the GUI. Synalyze It! Pro is another invaluable tool that we depend on. Earlier this week, we reviewed our favorite disassembler, Hopper for OS X. Rounding out this week with another tool review for the Mac under OS X.
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