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Radare2 框架介绍及使用
Radare2 框架介绍及使用
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radare2
这是整个框架的核心工具，它具有debugger和Hexeditor的核心功能，使您能够像打开普通的文件一样，打开许多输入/输出源，包括磁盘、网络连接、内核驱动和处于调试中的进程等。
它实现了一个高级的命令行界面，可用于在文件内部活动和浏览，分析数据，反编译，打补丁，比较数据，搜索，替换和可视化。您可以用多种编程语言编写radare2的脚本，包括Python, Ruby, JavaScript, Lua, 和 Perl。
rabin2
该程序用于从可执行文件中提取信息，例如ELF, PE, Java CLASS, Mach-O, 以及各种r2引擎所支持的二进制文件格式。r2核心使用rabin2获取数据，例如导出的符号，导入的函数和DLL等，文件的元信息，交叉引用（xrefs），依赖库以及文件区段信息。
rahash2
基于块的哈希工具，无论是一段短小的字符串，还是巨大的磁盘文件，rahash2都支持多种算法进行hash，包括MD4， MD5, CRC16, CRC32, SHA1， SHA256以及其他种种。 rahash2可用于完整性检查，或是追踪大文件、内存转储或磁盘上的变化。
rahash2 fineagent.jar fineagent.jar: 0x00000000-0x00008a54 sha1: db077a2a9da66e9437c0d8e4cc6035a6ccda1a37- 1
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rahash2 -a sha256 fineagent.jar fineagent.jar: 0x00000000-0x00008a54 sha256: 6c32e36008a8dd0a0cd196f16630d7cb6b1bb12a70dc50826656e047e648ef4b- 1
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radiff2
一个二进制差异比较工具， 实现了多种算法。它支持二进制文件的字节级比较以及差分比较， 以及支持代码差异比较，用于发现在Radare2分析工作中代码块发生的更改。
rafind2
用于在文件中根据pattern找到对应的字节串。
下载radare2
https://github.com/radareorg/radare2
cd radare2 ./sys/install.sh- 1
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卸载radare2
make uninstall make purge- 1
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使用radare2
radare2 -h
Usage: r2 [-ACdfLMnNqStuvwzX] [-P patch] [-p prj] [-a arch] [-b bits] [-i file] [-s addr] [-B baddr] [-m maddr] [-c cmd] [-e k=v] file|pid|-|--|= -- run radare2 without opening any file - same as 'r2 malloc://512' = read file from stdin (use -i and -c to run cmds) -= perform !=! command to run all commands remotely -0 print \x00 after init and every command -2 close stderr file descriptor (silent warning messages) -a [arch] set asm.arch -A run 'aaa' command to analyze all referenced code -b [bits] set asm.bits -B [baddr] set base address for PIE binaries -c 'cmd..' execute radare command -C file is host:port (alias for -c+=http://%s/cmd/) -d debug the executable 'file' or running process 'pid' -D [backend] enable debug mode (e cfg.debug=true) -e k=v evaluate config var -f block size = file size -F [binplug] force to use that rbin plugin -h, -hh show help message, -hh for long -H ([var]) display variable -i [file] run script file -I [file] run script file before the file is opened -j use json for -v, -L and maybe others -k [OS/kern] set asm.os (linux, macos, w32, netbsd, ...) -l [lib] load plugin file -L, -LL list supported IO plugins (-LL list core plugins) -m [addr] map file at given address (loadaddr) -M do not demangle symbol names -n, -nn do not load RBin info (-nn only load bin structures) -N do not load user settings and scripts -NN do not load any script or plugin -q quiet mode (no prompt) and quit after -i -qq quit after running all -c and -i -Q quiet mode (no prompt) and quit faster (quickLeak=true) -p [prj] use project, list if no arg, load if no file -P [file] apply rapatch file and quit -r [rarun2] specify rarun2 profile to load (same as -e dbg.profile=X) -R [rr2rule] specify custom rarun2 directive -s [addr] initial seek -S start r2 in sandbox mode -t load rabin2 info in thread -u set bin.filter=false to get raw sym/sec/cls names -v, -V show radare2 version (-V show lib versions) -w open file in write mode -x open without exec-flag (asm.emu will not work), See io.exec -X same as -e bin.usextr=false (useful for dyldcache) -z, -zz do not load strings or load them even in raw- 1
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交互式命令行
要分析的文件名 test
radare2 test
iI
获取基本信息
[0x0007e1fe]> iI arch arm baddr 0x100000000 binsz 26965216 bintype mach0 bits 64 canary true class MACH064 compiler clang crypto false endian little havecode true intrp /usr/lib/dyld laddr 0x0 lang swift linenum false lsyms false machine all nx false os ios pic true relocs true sanitize false static false stripped true subsys darwin va true- 1
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il
library
[0x0007e1fe]> il [Linked libraries] /usr/lib/libc++.1.dylib /System/Library/Frameworks/CFNetwork.framework/CFNetwork /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 3 libraries- 1
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ii
获取所有导入的库
[0x0007e1fe]> ii [Imports] nth vaddr bind type lib name ―――――――――――――――――――――――――――――――――――――――――――― 0 0x00ecf074 NONE FUNC ABAddressBookGetAuthorizationStatus 1 0x00000000 NONE FUNC ALAssetPropertyType 2 0x00000000 NONE FUNC ALAssetTypeVideo 3 0x00000000 NONE FUNC AVAssetExportPresetHighestQuality 4 0x00000000 NONE FUNC AVAssetExportPresetLowQuality 5 0x00000000 NONE FUNC AVAssetExportPresetMediumQuality 6 0x00000000 NONE FUNC AVAssetExportPresetPassthrough 7 0x00000000 NONE FUNC AVAssetImageGeneratorApertureModeProductionAperture 8 0x00000000 NONE FUNC AVAudioSessionCategoryPlayAndRecord 9 0x00000000 NONE FUNC AVAudioSessionCategoryPlayback 10 0x00000000 NONE FUNC AVAudioSessionInterruptionNotification 11 0x00000000 NONE FUNC AVAudioSessionInterruptionTypeKey 12 0x00000000 NONE FUNC AVAudioSessionInterruptionWasSuspendedKey 13 0x00000000 NONE FUNC AVAudioSessionMediaServicesWereLostNotification 14 0x00000000 NONE FUNC AVAudioSessionMediaServicesWereResetNotification 15 0x00000000 NONE FUNC AVAudioSessionModeDefault 16 0x00000000 NONE FUNC AVAudioSessionModeVoiceChat 17 0x00000000 NONE FUNC AVAudioSessionPortBluetoothA2DP- 1
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iE
二进制也可以有自己的符号、函数或数据。这些函数通常显示在
Exports
[0x0007e1fe]> iE [Exports] nth paddr vaddr bind type size lib name ―――――――――――――――――――――――――――――――――――――――――――――――――――― 0 0x013ef640 0x013ef640 GLOBAL FUNC 0 _OBJC_EHTYPE_$_NSError 1 0x001c57ea 0x001c57ea GLOBAL FUNC 0 _RCTFBQuickPerformanceLoggerConfigureHooks 2 0x00984f78 0x00984f78 GLOBAL FUNC 0 I0I1(OiIi, OiIi) 3 0x00980300 0x00980300 GLOBAL FUNC 0 I1I0(loO0, loO0) 4 0x00984886 0x00984886 GLOBAL FUNC 0 Ili1(oI1o, oI1o) 5 0x009833c0 0x009833c0 GLOBAL FUNC 0 O0o1(o00l, o00l) 6 0x0097eccc 0x0097eccc GLOBAL FUNC 0 OlO0(loO0, loO0) 7 0x00981e48 0x00981e48 GLOBAL FUNC 0 ilO1(o00l, o00l) 8 0x009854a4 0x009854a4 GLOBAL FUNC 0 l0I1(OiIi, OiIi) 9 0x0098c456 0x0098c456 GLOBAL FUNC 0 OIiOo(OiIi, OiIi) 10 0x00988a68 0x00988a68 GLOBAL FUNC 0 oOOOo(lI1o, lI1o) 11 0x013f0ec8 0x013f0ec8 GLOBAL FUNC 0 guard variable for CTXDataReportBase::GetInstance()::instance 12 0x013ed3e0 0x013ed3e0 GLOBAL FUNC 0 guard variable for folly::usingJEMalloc()::result 13 0x013ed3d8 0x013ed3d8 GLOBAL FUNC 0 guard variable for folly::detail::str_to_floating<double>(folly::Range<char const*>*)::conv- 1
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ie
程序入口
[0x100006784]> ie [Entrypoints] vaddr=0x100006784 paddr=0x00006784 haddr=0x000008c0 type=program- 1
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iz
列出数据段里的字符串
[0x10008287c]> iz [Strings] nth paddr vaddr len size section type string ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― 0 0x00e1d7cc 0x100e1d7cc 17 18 3.__TEXT.__objc_methname ascii sharedApplication 1 0x00e1d7de 0x100e1d7de 9 10 3.__TEXT.__objc_methname ascii keyWindow 2 0x00e1d7e8 0x100e1d7e8 8 9 3.__TEXT.__objc_methname ascii subviews 3 0x00e1d7f1 0x100e1d7f1 11 12 3.__TEXT.__objc_methname ascii firstObject 4 0x00e1d7fd 0x100e1d7fd 16 17 3.__TEXT.__objc_methname ascii parentController 5 0x00e1d80e 0x100e1d80e 5 6 3.__TEXT.__objc_methname ascii class 6 0x00e1d814 0x100e1d814 14 15 3.__TEXT.__objc_methname ascii isKindOfClass:- 1
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izz
列出整个二进制文件中字符串
[0x0007e1fe]> izz [Strings] nth paddr vaddr len size section type string ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― 0 0x00000028 0x00000028 10 11 ascii __PAGEZERO 1 0x00000070 0x00000070 6 7 ascii __TEXT- 1
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qc
执行结果后退出
r2 -qc ii test > ./Desktop/info.txt- 1
s
定位
a
analyze all (fcns + bbs)
aa
analyze all (fcns + bbs)
INFO: Analyze all flags starting with sym. and entry0 (aa) WARN: Analysis of 0x00d39470 stopped at 0x00d3abd2, use a higher anal.depth to continue WARN: Analysis of 0x00d39470 stopped at 0x00d3a63c, use a higher anal.depth to continue INFO: Analyze all functions arguments/locals (afva@@@F)- 1
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afl
分析函数列表（Analyze Functions List），执行aa后再执行
[0x0007e1fe]> afl 0x0007e1fe 1 92 main 0x00ed36c4 1 12 sym.imp.objc_autoreleasePoolPush 0x00ed3844 1 12 sym.imp.objc_msgSend 0x00ed36b4 1 12 sym.imp.objc_autoreleasePoolPop 0x001c57ea 1 2 sym._RCTFBQuickPerformanceLoggerConfigureHooks 0x009833c0 1 14 sym.O0o1_o00l__o00l_ 0x0097eccc 1 24 sym.OlO0_loO0__loO0_ 0x00981e48 1 12 sym.ilO1_o00l__o00l_- 1
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ax
列出所有方法，执行aa后再执行
[0x0007e1fe]> ax section.0.__TEXT.__text+34 0xb8c2 > CALL:--x > 0xed3844 sym.imp.objc_msgSend section.0.__TEXT.__text+40 0xb8c8 > CALL:--x > 0xed38e4 sym.imp.objc_retainAutoreleasedReturnValue- 1
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fs
所有的信息和特定的名字绑定在一起，比如区段、函数、符号、字符串，这些都被称作 ‘flags’, flags 被整合进 ，一个 flag 是所有类似特征的集合，展示所有的 flag
[0x10008287c]> fs 38483 . classes 2090 . format 93 . functions 4354 * imports 0 . imports f 37 . registers 2316 . relocs 34 . sections 4 . segments 80840 . strings 63511 . symbols- 1
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可以使用 ‘fs ’ 加 ‘f’ 来打印出 这个 flags 下面包含的信息，使用分号来间隔多条命令(‘cmd1;cmd2;cmd3;…’)
[0x100006784]> fs imports; f 0x1000067fc 0 sym.imp.CC_SHA1 0x100006808 0 sym.imp.NSLog 0x1000068bc 0 sym.imp.strlen- 1
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反汇编（Disassembling）
s main 指令定位到main函数入口处
[0x10008287c]> s main [0x10008287c]> pdf ;-- entry0: ;-- func.10008287c: ;-- pc: ┌ 128: int main (int argc, char **argv); │ ; arg int argc @ x0 │ ; arg char **argv @ x1 │ ; var int64_t var_10h @ sp+0x10 │ ; var int64_t var_20h @ sp+0x20 │ 0x10008287c f657bda9 stp x22, x21, [sp, -0x30]! │ 0x100082880 f44f01a9 stp x20, x19, [sp, 0x10] │ 0x100082884 fd7b02a9 stp x29, x30, [sp, 0x20] │ 0x100082888 fd830091 add x29, var_20h │ 0x10008288c f30301aa mov x19, x1 ; argv │ 0x100082890 f40300aa mov x20, x0 ; argc │ 0x100082894 f0583694 bl sym.imp.objc_autoreleasePoolPush │ 0x100082898 f50300aa mov x21, x0 │ 0x10008289c 689d00d0 adrp x8, 0x101430000 │ 0x1000828a0 005d44f9 ldr x0, [x8, 0x8b8] ; 0xcf ; 207 │ 0x1000828a4 489c00d0 adrp x8, 0x10140c000 │ 0x1000828a8 01cd41f9 ldr x1, [x8, 0x398] ; 0xcf ; 207 │ 0x1000828ac 23593694 bl sym.imp.objc_msgSend ; void *objc_msgSend(void *instance, char *selector) │ 0x1000828b0 f3513694 bl sym.imp.NSStringFromClass │ 0x1000828b4 fd031daa mov x29, x29 │ 0x1000828b8 38593694 bl sym.imp.objc_retainAutoreleasedReturnValue ; void objc_retainAutoreleasedReturnValue(void *instance) │ 0x1000828bc f60300aa mov x22, x0 │ 0x1000828c0 e00314aa mov x0, x20 │ 0x1000828c4 e10313aa mov x1, x19 │ 0x1000828c8 020080d2 movz x2, 0 │ 0x1000828cc e30316aa mov x3, x22 │ 0x1000828d0 9f523694 bl sym.imp.UIApplicationMain │ 0x1000828d4 f30300aa mov x19, x0 │ 0x1000828d8 e00316aa mov x0, x22 │ 0x1000828dc 20593694 bl sym.imp.objc_release ; void objc_release(void *instance) │ 0x1000828e0 e00315aa mov x0, x21 │ 0x1000828e4 d9583694 bl sym.imp.objc_autoreleasePoolPop │ 0x1000828e8 e00313aa mov x0, x19 │ 0x1000828ec fd7b42a9 ldp x29, x30, [var_20h] │ 0x1000828f0 f44f41a9 ldp x20, x19, [var_10h] │ 0x1000828f4 f657c3a8 ldp x22, x21, [sp], 0x30 └ 0x1000828f8 c0035fd6 ret- 1
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视图模式 & 图形模式（Visual Mode & Graph Mode）
按 V 键将开启视图模式，按 p/P 可以在不同的模式之间切换，在屏幕的顶部是输入的命令
h / j / k / l 分别表示 左 / 下 / 上 / 右 ,输入 g来跳转到你想去的函数地址
按 q 返回到 r2 的 shell操作界面
结合代码使用
/** * * * CSDN:http://blog.csdn.net/yin13753884368/article * Github:https://github.com/taxiao213 */ @Log4j2 public class Radare2Job5 { private Process process; private final String R2_EXIT = "exit"; private LinkedBlockingQueue<String> linkedBlockingQueue; StringBuilder stringBuilder; private String path; private final long TIME = 1000 * 60 * 1; private boolean isClose = false; public Radare2Job5(String filePath) { linkedBlockingQueue = new LinkedBlockingQueue<>(); stringBuilder = new StringBuilder(); path = filePath; } public void startRadare2() { initRadareProcess(path); Thread threadRead = new Thread(this::readCmd); threadRead.setName("readCmdRs"); threadRead.start(); Thread threadError = new Thread(this::readErrorCmd); threadError.setName("readErrorCmd"); threadError.start(); Thread threadWrite = new Thread(this::writeCmd); threadWrite.setName("writeCmd"); threadWrite.start(); Thread threadClose = new Thread(this::closeProcess); threadClose.setName("closeProcess"); threadClose.start(); Thread threadPut = new Thread(this::putCmd); threadPut.setName("putCmd"); threadPut.start(); try { process.waitFor(); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println("main thread stop"); } public void inputCmd(String cmd) { try { if (linkedBlockingQueue != null) { linkedBlockingQueue.put(cmd); linkedBlockingQueue.put(R2_EXIT); } } catch (Exception e) { e.printStackTrace(); } } public void inputCmd(String... cmd) { try { if (linkedBlockingQueue != null) { for (String st : cmd) { linkedBlockingQueue.put(st); } linkedBlockingQueue.put(R2_EXIT); } } catch (Exception e) { e.printStackTrace(); } } public String getRadare2Result() { if (stringBuilder != null) { return stringBuilder.toString(); } return ""; } public void writeCmd() { BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(process.getOutputStream())); try { while (true) { try { String cmdSt = linkedBlockingQueue.take(); log.debug("writeCmd cmdSt: {} ", cmdSt); System.out.println("writeCmd: " + cmdSt); bw.write(cmdSt); bw.newLine(); bw.flush(); if (cmdSt.equals("exit")) { log.debug("writeCmd r2 stop "); System.out.println("r2 stop "); break; } Thread.sleep(1000); } catch (Exception e) { e.printStackTrace(); log.error("writeCmd Exception : {} ", e.getMessage()); } } } finally { try { bw.close(); } catch (IOException e) { e.printStackTrace(); log.error("writeCmd BufferedWriter Exception : {} ", e.getMessage()); } System.out.println(Thread.currentThread().getName() + "writeCmd stop"); log.debug("Thread.name:{} , writeCmd r2 stop ", Thread.currentThread().getName()); } } private void readCmd() { InputStreamReader inputStreamReader = new InputStreamReader(process.getInputStream(), Charset.forName("GBK")); try { //用缓冲器读行 BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String line = null; //结果输出流 直到读完为止 System.out.println("start"); log.debug("readCmd start "); while ((line = bufferedReader.readLine()) != null) { System.out.println(line); log.debug("print: {} ", line); if (!line.startsWith("[0x") && !line.contains("[0x")) { stringBuilder.append(line); } } System.out.println("end"); log.debug("readCmd end "); } catch (Exception e) { e.printStackTrace(); log.error("readCmd : {} ", e.getMessage()); } finally { try { inputStreamReader.close(); } catch (IOException e) { e.printStackTrace(); } log.debug("Thread.name:{} , readCmd finally end ", Thread.currentThread().getName()); System.out.println("结束"); isClose = true; } } private void readErrorCmd() { InputStreamReader inputStreamReader = new InputStreamReader(process.getErrorStream(), Charset.forName("GBK")); try { //用缓冲器读行 BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String line = null; //结果输出流 直到读完为止 System.out.println("readErrorCmd start"); log.debug("readErrorCmd start "); while ((line = bufferedReader.readLine()) != null) { System.out.println(line); log.debug("print: {} ", line); } System.out.println("readErrorCmd end"); log.debug("readErrorCmd end "); } catch (Exception e) { e.printStackTrace(); log.error("readErrorCmd Exception : {} ", e.getMessage()); } finally { try { inputStreamReader.close(); } catch (IOException e) { e.printStackTrace(); } log.debug("Thread.name:{} , readErrorCmd finally end ", Thread.currentThread().getName()); System.out.println("结束"); isClose = true; } } public void putCmd() { Scanner scanner = new Scanner(System.in); while (true) { System.out.println("please input your cmd:"); String cmd = scanner.next(); try { if (linkedBlockingQueue != null) { linkedBlockingQueue.put(cmd); log.debug("putCmd cmdSt: {} ", cmd); } if (cmd.equals("exit")) { System.out.println("now, input cmd stop yet"); break; } } catch (Exception e) { e.printStackTrace(); } } } /** * 初始化 radare2 进程 */ private void initRadareProcess(String filePath) { String cmd = "r2 "; try { log.debug("initRadareProcess filePath: {} ", filePath); process = Runtime.getRuntime().exec(cmd + filePath); } catch (Exception e) { e.printStackTrace(); log.error("initRadareProcess Exception : {} ", e.getMessage()); } } public void closeProcess() { long startTime = System.currentTimeMillis(); while (true) { try { Thread.sleep(1000 * 1); } catch (InterruptedException e) { e.printStackTrace(); } if (isClose) { break; } if (System.currentTimeMillis() - startTime > TIME) { break; } } if (process != null) { BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(process.getOutputStream())); try { bw.write("exit"); bw.newLine(); bw.flush(); } catch (IOException e) { e.printStackTrace(); } try { ProcessHandle processHandle = process.toHandle(); if (processHandle != null) { processHandle.destroy(); processHandle.descendants().forEach(ProcessHandle::destroy); } } catch (Exception e) { e.printStackTrace(); log.error("closeProcess Exception : {} ", e.getMessage()); } process.destroy(); log.debug("Thread.name:{} , closeProcess ", Thread.currentThread().getName()); } } }- 1
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微信公众号（他晓），关注并转发，谢谢
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- 原文地址：https://blog.csdn.net/yin13753884368/article/details/128208134
