<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[you_need_me的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/you_need_me</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; you_need_me]]></copyright><item><title><![CDATA[Linux修改环境变量path]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/81123994</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/81123994</guid><author>you_need_me</author><pubDate>Thu, 19 Jul 2018 22:31:59 +0800</pubDate><description><![CDATA[直接保存文章https://blog.youkuaiyun.com/wr132/article/details/53933150]]></description><category></category></item><item><title><![CDATA[linux下scp命令]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/81113339</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/81113339</guid><author>you_need_me</author><pubDate>Thu, 19 Jul 2018 12:43:29 +0800</pubDate><description><![CDATA[http://www.runoob.com/linux/linux-comm-scp.html]]></description><category></category></item><item><title><![CDATA[pwnable.kr  echo1]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/80643375</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/80643375</guid><author>you_need_me</author><pubDate>Sun, 10 Jun 2018 18:50:51 +0800</pubDate><description><![CDATA[int __cdecl main(int argc, const char **argv, const char **envp)
{
  unsigned int *v3; // rsi
  _QWORD *v4; // rax
  unsigned int v6; // [rsp+Ch] [rbp-24h]
  __int64 v7; // [rsp+10h] [rbp-20h]
  __int...]]></description><category></category></item><item><title><![CDATA[pwnable.kr echo2]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/80643018</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/80643018</guid><author>you_need_me</author><pubDate>Sun, 10 Jun 2018 18:03:32 +0800</pubDate><description><![CDATA[这个题是fsb+uafint __cdecl main(int argc, const char **argv, const char **envp)
{
  unsigned int *v3; // rsi
  _QWORD *v4; // rax
  unsigned int v6; // [rsp+Ch] [rbp-24h]
  __int64 v7; // [rsp+10h] [rbp-2...]]></description><category></category></item><item><title><![CDATA[基于Linux的off by one漏洞]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/80631837</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/80631837</guid><author>you_need_me</author><pubDate>Sat, 09 Jun 2018 12:21:17 +0800</pubDate><description><![CDATA[https://blog.youkuaiyun.com/nibiru_holmes/article/details/62040763]]></description><category></category></item><item><title><![CDATA[pwnable.kr dragon]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/80585141</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/80585141</guid><author>you_need_me</author><pubDate>Tue, 05 Jun 2018 18:04:48 +0800</pubDate><description><![CDATA[http://blog.sina.com.cn/s/blog_e23a215b0102wiap.html]]></description><category></category></item><item><title><![CDATA[UAF漏洞]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/80584766</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/80584766</guid><author>you_need_me</author><pubDate>Tue, 05 Jun 2018 17:40:15 +0800</pubDate><description><![CDATA[https://www.cnblogs.com/Ox9A82/p/5320857.html]]></description><category></category></item><item><title><![CDATA[pwnable.kr simple login]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/80547181</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/80547181</guid><author>you_need_me</author><pubDate>Sat, 02 Jun 2018 13:24:07 +0800</pubDate><description><![CDATA[点击打开链接]]></description><category></category></item><item><title><![CDATA[2017第二届广东省强网杯线上赛   Nonstandard]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/80028500</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/80028500</guid><author>you_need_me</author><pubDate>Sat, 21 Apr 2018 14:15:31 +0800</pubDate><description><![CDATA[先拉入ida分析一下我们只要让sub_401480返回值为1就可以了他把我们输入的flag进行操作与byte_402120比较byte_402120的值，这里要把前面的6eh加上也就是‘n’，得到nAdtxA66nbbdxA71tUAE2AOlnnbtrAp1nQzGtAQGtrjC7===接着我们再看一下函数sub_401070发现有点长。。。 我截取了一部分发现红框里的代码每次以5个bit为一...]]></description><category></category></item><item><title><![CDATA[pwnable.kr random]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/79951233</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/79951233</guid><author>you_need_me</author><pubDate>Sun, 15 Apr 2018 17:52:17 +0800</pubDate><description><![CDATA[连接ssh random@pwnable.kr -p2222rand（）生成一个随机数与key进行异或等于0xdeadbeefrand函数不是真正的随机数生成器，而srand()会设置供rand()使用的随机数种子。所以random的值固定的得到random和key的值，注意这里要在一样的系统下测试，不同系统下得到的随机值不同。得到flag...]]></description><category></category></item><item><title><![CDATA[第二届强网杯simplecheck]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/79770201</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/79770201</guid><author>you_need_me</author><pubDate>Sat, 31 Mar 2018 16:17:13 +0800</pubDate><description><![CDATA[一个安卓逆向题目
用jadx-gui反编译apk
发现函数a中有flag算法

首先定义了a，b，c，d四个数组
接着传入参数str
由于函数a要返回true
str长度与数组b长度一样为34
接着创建了一个新数组iarr[0]为0，后面34位为str也就是flag
下面一个判断a[i2] = (((b[i2] * iArr[i2]) * iArr[i2]) + (c[i2] *]]></description><category></category></item><item><title><![CDATA[解决masm在64位windows版本不兼容无法运行]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/78622705</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/78622705</guid><author>you_need_me</author><pubDate>Fri, 24 Nov 2017 11:18:38 +0800</pubDate><description><![CDATA[最近在学校机房用MASM编译汇编代码无奈在64位windows中不兼容。
      
     
   
  找到了一种解决办法：用DOSBox0.74挂载masm到其他盘，在其他盘中进行编译操作。
  具体方法：
  1.下载安装DOSBox0.74之后运行会出来命令框；
  2.mount输入命令Mount e: d:/masm（我们是将masm文件放在D盘下，用命令挂载到E盘]]></description><category></category></item><item><title><![CDATA[记第一次成功的逆向（ctf）]]></title><link>https://blog.youkuaiyun.com/you_need_me/article/details/78471512</link><guid>https://blog.youkuaiyun.com/you_need_me/article/details/78471512</guid><author>you_need_me</author><pubDate>Tue, 07 Nov 2017 19:37:34 +0800</pubDate><description><![CDATA[之前比赛的时候有一道逆向题苦思冥想没写出来，可能是因为知识储存过于少，之前只懂一些od的用法以及汇编语言。以至于这次遇到加壳的题用od加载出来之后手足无措，之后看了别人的wp之后总结出一点思路。
       首先用peid查壳之后发现是nSPack 3.7，就在网上临时学了esp定律脱壳，在od中用dump将壳脱去。我觉得因为是要找flag，所以用ida加载题目找到了主函数。

    思]]></description><category></category></item></channel></rss>