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OllyDbg
Debug software
OllyDbg (named after its author, Oleh Yuschuk) was an x86debugger that emphasizes binary code analysis, which is useful when source code is not available. It traces registers, recognizes procedures, API calls, switches, tables, constants and strings, as well as locates routines from object files and libraries.
It has a user friendly interface, and its functionality can be extended by third-party plugins. Version is the final 1.x release. Version was released in June , and OllyDbg has been rewritten from the ground up in this release.
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Emphasis on binary code analysis makes it particularly useful in cases where source is unavailable. This is very important when experimenting with a binary, trying to figure out how it works. Olly opens with the default window, CPU, open. It is separated into 4 main fields; Disassembly, Registers, Stack, and Dump. Here is a description of each section.Although the current version of OllyDbg cannot disassemble binaries compiled for bit processors, a bit version of the debugger has been promised.[3] As of April the development of the project has been frozen and an incomplete bit version can be downloaded from the website.[4]
License
The software is free of cost, but the shareware license of version 1.x requires users to register with the author.[5] In version 2.x, the registration requirement was dropped.[6] The source code can be purchased from the author.[7]
The disassembler part of OllyDbg is free software, released under the GNU General Public License.[8]
Reverse engineering
OllyDbg is often used for reverse engineering of programs.[9] It is often used by crackers to crack software made by other developers.
For cracking and reverse engineering, it is often the primary tool because of its ease of use and availability; any bit executable can be used by the debugger and edited in bitcode/assembly in realtime.[10] It is also useful for programmers to ensure that their program is running as intended, and for malware analysis purposes.
Related software
References
- ^"OllyDbg ". . Archived from the original on 28 July Retrieved 19 October
- ^"80x86 Assembler and Disasssembler". .Oleh yuschuk biography of martin OllyDbg named after its author, Oleh Yuschuk was an x86 debugger that emphasizes binary code analysis, which is useful when source code is not available. It traces registers , recognizes procedures , API calls, switches , tables , constants and strings , as well as locates routines from object files and libraries. It has a user friendly interface, and its functionality can be extended by third-party plugins. Version 1. Version 2.
Archived from the original on 31 July Retrieved 19 October
- ^Yuschuk, Oleh. "OllyDbg 64".
- ^Yuschuk, Oleh. "OllyDbg v".
- ^Yuschuk, Oleh. "Download". Archived from the original on 27 May
- ^Yuschuk, Oleh (27 September ), "(No) registration"(zip), OllyDbg Brief Help
- ^Yuschuk, Oleh (27 September ), "Support"(zip), OllyDbg Brief Help
- ^Yuschuk, Oleh.
"80x86 Assembler and Disasssembler".
- ^Eilam, Eldad ().Oleh yuschuk biography of martin luther He now coaches the U14 division of R. He first made a name for himself in the Ukrainian Premier League in the —96 season. Playing for an unfashionable Nyva Ternopil side, then a year-old, on matchday 1 he scored a hat trick at Shakhtar Donetsk helping his side to a shock 4—2 away win. Iachtchouk's talent caught the eye of Anderlecht and he signed for the Belgian club at the end of the season. He made a good start in the first team in the s but then became injured for long periods of time.
Reversing: secrets of reverse engineering. Wiley. p.&#; ISBN&#;.
- ^Ferguson, Justin; Kaminsky, Dan (). Reverse engineering code with IDA Pro. Syngress. p.&#; ISBN&#;.