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<!doctype html>
<html class="theme-next use-motion ">
<head>
<meta charset="UTF-8"/>
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scheme: '',
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};
</script>
<title> 羊小弟 </title>
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page-home
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<header class="post-header">
<h1 class="post-title" itemprop="name headline">
<a class="post-title-link" href="/2015/11/10/20151105福建ctf学习/" itemprop="url">
20151105福建ctf学习
</a>
</h1>
<div class="post-meta">
<span class="post-time">
发表于
<time itemprop="dateCreated" datetime="2015-11-10T22:41:40+08:00" content="2015-11-10">
2015-11-10
</time>
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<div class="post-body">
<span itemprop="articleBody"><p>##收获的第一个方法<br>在遇到攻防赛的时候, 首先上防御机下载代码下来，在遇到web被拿分的时候,把那时候的web代码在下载一遍，然后用diff命令对比两个文件夹，看看有哪些地方改变了. </p>
<pre><code>➜diff TCPDUMP TCPDUMP2
Binary files TCPDUMP/.DS_Store <span class="keyword">and</span> TCPDUMP2/.DS_Store differ
Only <span class="keyword">in</span> TCPDUMP2: aaaa.gz
Only <span class="keyword">in</span> TCPDUMP: tcpdump-<span class="number">4.7</span><span class="number">.4</span>.tar.gz
diff TCPDUMP/tcpdump.sh TCPDUMP2/tcpdump.sh
<span class="number">6</span>c6,<span class="number">9</span>
< done
>
> asasa
> sasaas
\ No newline <span class="keyword">at</span> <span class="keyword">end</span> <span class="keyword">of</span> <span class="type">file</span>，
</code></pre><hr>
<p>可以到对比TCPDUMP 和TCPDUMP2,发现在TCODUMP2中有aaaa.gz,而在TCPDUMP中是没有的,所以这样能找出webshell,还有被更改的文件,新加的文件等等.<br>也写出了一个脚本<br><a href="https://github.com/yangxiaodi/diff.sh/issues/1" target="_blank" rel="external">https://github.com/yangxiaodi/diff.sh/issues/1</a></p>
<p>##收获的第二个方法<br>防御机大部分是没有root权限的,我们可以尝试root防御机,毕竟做这个设置的也是人,也是管理员，尝试一下也未妨不可,打比赛比的就是黑客的思维嘛.平常要多收集exp等,多去尝试.你可以/etc/hosts 将flag机器的ip重定向到本地(:</p>
<p>##总结<br>这次的比赛也有好多没做好的地方,比如第一题的编码题,见识还是太短,工具还是不熟练,所以第一题被困了好久，多练多涨见识.那题选择题也是很可惜的，后面发现可以用wifi连接，如果百度一下，那就保证不会做错了，还有上waf的速度太慢了，自己也太紧张了，居然连语句都忘了，简直脑子塞了一拖翔，如果上的快一些,那就不会被福州队从第二轮拿到最后一轮的，白白丢了100多分。还有应对wab题目的能力,没百度了没外网了该怎么办，从依赖有网到没网的时候能应付自如,那才厉害,在web中，遇到要破解的md5怎么办,都是一系列的问题。不要小看一些古老的技术，他还是会拿出来考。 </p>
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Hello World
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发表于
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2015-11-10
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Hello World
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发表于
<time itemprop="dateCreated" datetime="2015-11-10T22:22:27+08:00" content="2015-11-10">
2015-11-10
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