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@huhuang03
huhuang03 / centos php 操作
Created March 29, 2017 14:14
Insatll apache
sudo yum install httpd
Start apache
sudo service httpd start
@huhuang03
huhuang03 / Android 汇编
Created March 29, 2017 12:40
# R0 - R11 为寄存器
# BL 表示调用子程序
# puts 表示标准函数printf的实现
EXPORT main # IDA 生成，函数名称
main # 函数名称
var_C = -0xc # variable var_c = -0xc
var_8 = -8 # variable var_8 = -8
STMFD SP!, {R11,LR} # 将寄存器入栈
ADD R11, SP, #4 # R11 = [SP] + 4
@huhuang03
huhuang03 / 快捷键
Created March 29, 2017 06:51
^ ctrl
@huhuang03
huhuang03 / 逆向文件记录
Last active March 28, 2017 02:15
可执行文件格式：
1. windows 可编译可执行(Portable Executable, PE)格式
2. Unix 可执行和链接格式(Executable and linking format, ELF)
反汇编算法：
1. 线性扫描。GNU调试器(gdb)、微软公司的winDbg调试器和objjump实用工具的反汇编引擎均采用这种扫描方法。
2. 递归下降反编译器。IDA Pro
IDA Pro全称为Interactive Disassembler Professional
编译的时候可以选择静态链接或者动态链接，静态链接会将需要用的的共享库一起打包到发行文件中，而动态链接会动态的链接运行环境中的库。
@huhuang03
huhuang03 / unix时间戳
Created March 22, 2017 02:25
13位为毫秒
10位为妙
@huhuang03
huhuang03 / smali code snap
Last active March 21, 2017 09:49
# define a string
const-string v0, "aaa"
# invode static method
invoke-static {v0, v1}, Landroid/util/Log;->i(Ljava/lang/String;Ljava/lang/String;)V
# static field
.field private static TAG:Ljava/lang/String;
#
@huhuang03
huhuang03 / 使用rider开发unity3d script
Last active July 6, 2017 08:37
2. 将Unity3dRider(https://github.com/JetBrains/Unity3dRider)中的Assets/Plugins/Editor/JetBrains拷贝到Unity3d工程的Assets/Plugins/Editor/JetBrains
3. 在Unity3D中设置editor为rider
@huhuang03
huhuang03 / c# 方法修饰词
Created March 17, 2017 09:16
virual: A use virtual and B use override
A a = new B();
a.foo() calls B.foo()
new:
just like override in java. Just let compier know I konw it override A's method
override:
use with virtual or abstract
@huhuang03
huhuang03 / Unity3d逆向
Created March 14, 2017 15:23
一般逻辑放在dll中。如安卓平台中的：
-rw-r--r-- 1 yi staff 162K Mar 14 22:58 ./assets/bin/Data/Managed/Assembly-CSharp-firstpass.dll
-rw-r--r-- 1 yi staff 2.1M Mar 14 22:58 ./assets/bin/Data/Managed/Assembly-CSharp.dll
-rw-r--r-- 1 yi staff 132K Mar 14 22:58 ./assets/bin/Data/Managed/DOTween.dll
-rw-r--r-- 1 yi staff 8.0K Mar 14 22:58 ./assets/bin/Data/Managed/DOTween43.dll
-rw-r--r-- 1 yi staff 16K Mar 14 22:58 ./assets/bin/Data/Managed/DOTween46.dll
-rw-r--r-- 1 yi staff 5.5K Mar 14 22:58 ./assets/bin/Data/Managed/DOTween50.dll
-rw-r--r-- 1 yi staff 15K Mar 14 22:58 ./assets/bin/Data/Managed/DOTweenPro.dll
-rw-r--r-- 1 yi staff 5.0K Mar 14 22:58 ./assets/bin/Data/Managed/DemiLib.dll
-rw-r--r-- 1 yi staff 28K Mar 14 22:58 ./assets/bin/Data/Managed/GAEAMOBILE.Unity.Platform.dll
@huhuang03
huhuang03 / ndk开发小常识
Created March 13, 2017 15:21
查看CPU型号：cat /proc/cpuinfo
Processor : AArch64 Processor rev 2 (aarch64)对应的是arm64-v8