duangsuse::Echo
@dsuse
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美而不丑、明而不暗、短而不凡、长而不乱，扁平不宽，读而后码，行之天下，勿托地上天国。
异常勿吞，难过勿过，叹一真理。效率是很重要，盲目最是低效。
简明是可靠的先验，不是可靠的祭品。
知其变，守其恒，为天下式；穷其变，知不穷，得地上势。知变守恒却穷变知新，我认真理，我不认真。

技术相干订阅~
另外有 throws 闲杂频道 @dsuset
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极小可能会有批评zf的消息 如有不适可退出
suse小站(面向运气编程)： https://WOJS.org/#/
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duangsuse::Echo
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duangsuse::Echo
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duangsuse::Echo
令人窒息的操作
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duangsuse::Echo
如你所愿（（（（（
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duangsuse::Echo
我们来试试随便打个断点
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duangsuse::Echo
>> ct android.widget.Toast
## Setting Hooks
   -- Hooked android.widget.Toast
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duangsuse::Echo
如果 @drakeet 使用 Toast API
显示鄙视文档的话, 中断后就会有奇怪的方法出现在 call stack 中（
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duangsuse::Echo
虚拟机 Segfault 了
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duangsuse::Echo
现在我在纯纯写作初始化时 suspend, 然后在 java.security.MessageDigest 上打断点
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duangsuse::Echo
>> tt
## Setting Hooks
   -- Hooked thread <1> main    (running suspended)
   -- Hooked thread <33> Okio Watchdog  (sleeping suspended)
   -- Hooked thread <32> OkHttp ConnectionPool  (sleeping suspended)
   -- Hooked thread <31> AsyncTask #2   (waiting suspended)
   -- Hooked thread <30> AsyncTask #1   (waiting suspended)
   -- Hooked thread <29> RxCachedThreadScheduler-9      (waiting suspended)
   -- Hooked thread <21> RxCachedThreadScheduler-8      (waiting suspended)
   -- Hooked thread <28> RxComputationThreadPool-1      (sleeping suspended)
   -- Hooked thread <27> RxCachedThreadScheduler-7      (waiting suspended)
   -- Hooked thread <24> RxCachedThreadScheduler-4      (waiting suspended)
   -- Hooked thread <23> RxCachedThreadScheduler-3      (waiting suspended)
   -- Hooked thread <22> RxCachedThreadScheduler-2      (waiting suspended)
   -- Hooked thread <20> pool-5-thread-2        (waiting suspended)
   -- Hooked thread <19> pool-5-thread-1        (waiting suspended)
   -- Hooked thread <18> RxCachedThreadScheduler-1      (waiting suspended)
   -- Hooked thread <17> RxCachedWorkerPoolEvictor-1    (sleeping suspended)
   -- Hooked thread <15> RxSchedulerPurge-1     (running suspended)
   -- Hooked thread <16> pool-3-thread-1        (waiting suspended)
   -- Hooked thread <14> Crashlytics Exception Handler1 (waiting suspended)
   -- Hooked thread <13> Answers Events Handler1        (sleeping suspended)
   -- Hooked thread <12> Queue  (waiting suspended)
   -- Hooked thread <11> Queue  (waiting suspended)
   -- Hooked thread <10> Binder_2       (running suspended)
   -- Hooked thread <9> Binder_1        (running suspended)
   -- Hooked thread <8> FinalizerWatchdogDaemon (sleeping suspended)
   -- Hooked thread <7> FinalizerDaemon (waiting suspended)
   -- Hooked thread <6> ReferenceQueueDaemon    (waiting suspended)
   -- Hooked thread <5> Compiler        (waiting suspended)
   -- Hooked thread <3> Signal Catcher  (waiting suspended)
   -- Hooked thread <2> GC      (waiting suspended)

Threads
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duangsuse::Echo
dse@susepc:~/reveng/pw$ andbug shell -d emulator-5554 -p com.drakeet.purewriter -s smali/
## AndBug (C) 2011 Scott W. Dunlop <swdunlop@gmail.com>
» suspend
## Process Suspended
» thread
thread-trace  threads       
» threads
## thread <1> main      (running suspended)
## thread <2> GC        (waiting suspended)
## thread <3> Signal Catcher    (waiting suspended)
## thread <5> Compiler  (waiting suspended)
## thread <6> ReferenceQueueDaemon      (waiting suspended)
## thread <7> FinalizerDaemon   (waiting suspended)
## thread <8> FinalizerWatchdogDaemon   (waiting suspended)
## thread <9> Binder_1  (running suspended)
## thread <10> Binder_2 (running suspended)
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duangsuse::Echo
>> ct java.security.MessageDigest
## Setting Hooks
   -- Hooked java.security.MessageDigest

🌚🔒🗞
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duangsuse::Echo
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duangsuse::Echo
duangsuse::Echo
>> ct java.security.MessageDigest ## Setting Hooks -- Hooked java.security.MessageDigest 🌚🔒🗞
动态调试果然赛艇 🌚
我只是打了一个小小的类断点

... 这信息量比较大
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duangsuse::Echo
由于更新个没完我就中断了调试器
先分析开始的这些
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duangsuse::Echo
混淆不能太大的干扰动态分析( :-P
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duangsuse::Echo
由于那些访问 java.security.MessageDigest 的都是些 SDK 或者进行 Web 交互的(比如从 gh 上拖价格)
我重启写作, Hook 上面我提到的那个访问 Native Method 的方法.
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