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2020 年开年不顺，2019 新型冠状病毒肺炎爆发，从年三十居家隔,">
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<a href="/categories/DevOps"><b>「
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二月 10, 2020
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<h3 class="post-title animated fadeInDown"><a href="/kinsing-virus/" title=""寄生"于 Docker 的病毒 - Kinsing" class="">"寄生"于 Docker 的病毒 - Kinsing</a>
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<p>原创发表于 <a href="https://blog.davidz.cn">DavidZ Blog</a>，遵循 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode" target="_blank" rel="noopener">CC 4.0 BY-NC-SA</a> 版权协议，转载请附上原文出处链接及本声明。</p>
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<h2 id="前言"><a class="header-anchor" href="#前言">¶</a>前言</h2>
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<p>2020 年开年不顺，2019 新型冠状病毒肺炎爆发，从年三十居家隔离到了正月十五，没想到自己的服务器也”感染“上了病毒 - Kinsing(进程的名字，姑且这样称呼)。</p>
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<h2 id="发现"><a class="header-anchor" href="#发现">¶</a>发现</h2>
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<p><img src="https://davidz-blog.oss-cn-beijing.aliyuncs.com/img/netdata-1599485973.png" alt="netdata"></p>
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<p>偶然看了看服务器状态，发现 CPU 占用一直保持在 100%上下，有些蹊跷。</p>
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<p>难道是我的博客访问量<s>暴增</s>？？？那是当然不可能的，然后我去看了看<a href="https://github.com/portainer/portainer" target="_blank" rel="noopener">Portainer</a>看了看，果然，</p>
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<p><img src="https://davidz-blog.oss-cn-beijing.aliyuncs.com/img/portainer-1599485974.png" alt="portainer"></p>
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<p>这个随机名称的容器就是 Kinsing 基于 Ubuntu 的容器，CPU 占用 100%。</p>
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<p><img src="https://davidz-blog.oss-cn-beijing.aliyuncs.com/img/%E8%BF%9B%E7%A8%8B-1599485975.png" alt="进程"></p>
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<p>简单看了看容器里面的进程表，第一个运行了一个 shell 脚本，这个病毒就是这个脚本下载启动的关键，我打开看了看，<s>也没看懂</s>，大概是下载了几个可执行文件。第二个是 cron，这个是定时脚本，我猜应该是病毒定时检查一下运行情况？第三个好像是个守护进程，第四个应该是用于容器保持，第五个在网上能搜到，是个<a href="https://www.baidu.com/s?wd=kdevtmpfsi" target="_blank" rel="noopener">挖矿的程序</a>。</p>
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<p>无聊的我还简单看了看这个脚本的服务器 IP，</p>
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<p><img src="https://davidz-blog.oss-cn-beijing.aliyuncs.com/img/ip-1599485976.png" alt="ip"></p>
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<p>难道是俄罗斯大佬？？？</p>
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<p>这个时候我突然想起来，前几天为了调试<a href="https://certbot.eff.org/" target="_blank" rel="noopener">certbot</a>的 Dockerfile, 我直接打开了 Docker 的<a href="https://docs.docker.com/engine/reference/commandline/dockerd/#daemon-socket-option" target="_blank" rel="noopener">远程访问</a>，在默认的情况下是没有任何加密措施的。</p>
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<p>这样，就真相大白了，这个病毒通过未加密的接口，在我的服务器上运行了挖矿的容器来盈利，同时也占用了服务器全部的 CPU😢.</p>
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<h2 id="处理"><a class="header-anchor" href="#处理">¶</a>处理</h2>
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<p>Kinsing 病毒还是很良心的（至少我遇到的这个是），把自己”关“在了容器里面，反正后来我也没有在别的地方发现相关文件。</p>
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<p>所以处理起来也简单，</p>
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<ol>
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<li>删掉容器和镜像</li>
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<li>关闭 Docker 远程访问即可。如果不想关闭的话也可以<a href="https://docs.docker.com/engine/security/https/" target="_blank" rel="noopener">用 https 的方式加密</a>。</li>
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</ol>
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<h2 id="小想法"><a class="header-anchor" href="#小想法">¶</a>小想法</h2>
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<p>其实这个 Kinsing 病毒实现起来还是很简单的，</p>
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<ol>
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<li>扫描全网的 2375 这个默认端口</li>
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<li>用 Docker API 连接并部署容器</li>
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<li>执行脚本运行挖矿程序</li>
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</ol>
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<p><s>突然有一个邪恶的想法，一台机器一天就算 1 毛钱好啦</s>，哈哈哈，但是违法的事情不能做呀😄。</p>
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<p>大家一定要注意呀，时刻谨记服务器安全，不要随意开放服务器端口。</p>
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<h4>目录</h4>
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<ol class="toc"><li class="toc-item toc-level-2"><a class="toc-link" href="#前言"><span class="toc-number">1.</span> <span class="toc-text">前言</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#发现"><span class="toc-number">2.</span> <span class="toc-text">发现</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#处理"><span class="toc-number">3.</span> <span class="toc-text">处理</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#小想法"><span class="toc-number">4.</span> <span class="toc-text">小想法</span></a></li></ol>
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<script src="//cdn.jsdelivr.net/npm/codemirror@5.45.0/mode/clike/clike.min.js"></script>
|
||
|
||
<script src="//cdn.jsdelivr.net/npm/codemirror@5.45.0/mode/php/php.min.js"></script>
|
||
|
||
<script src="//cdn.jsdelivr.net/npm/codemirror@5.45.0/mode/shell/shell.min.js"></script>
|
||
|
||
<script src="//cdn.jsdelivr.net/npm/codemirror@5.45.0/mode/python/python.min.js"></script>
|
||
|
||
<script src="//cdn.jsdelivr.net/npm/codemirror@5.45.0/mode/cmake/cmake.min.js"></script>
|
||
|
||
<script src="//cdn.jsdelivr.net/npm/codemirror@5.45.0/mode/powershell/powershell.min.js"></script>
|
||
|
||
<script src="//cdn.jsdelivr.net/npm/codemirror@5.45.0/mode/yaml/yaml.min.js"></script>
|
||
|
||
<script src="/js/busuanzi.min.js"></script>
|
||
|
||
<script>
|
||
$(document).ready(function () {
|
||
if ($('span[id^="busuanzi_"]').length) {
|
||
initialBusuanzi();
|
||
}
|
||
});
|
||
</script>
|
||
|
||
<link rel="stylesheet" href="//cdn.jsdelivr.net/npm/photoswipe@4.1.3/dist/photoswipe.min.css">
|
||
<link rel="stylesheet" href="//cdn.jsdelivr.net/npm/photoswipe@4.1.3/dist/default-skin/default-skin.min.css">
|
||
|
||
|
||
<script src="//cdn.jsdelivr.net/npm/photoswipe@4.1.3/dist/photoswipe.min.js"></script>
|
||
<script src="//cdn.jsdelivr.net/npm/photoswipe@4.1.3/dist/photoswipe-ui-default.min.js"></script>
|
||
|
||
|
||
<!-- Root element of PhotoSwipe. Must have class pswp. -->
|
||
<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
|
||
<!-- Background of PhotoSwipe.
|
||
It's a separate element as animating opacity is faster than rgba(). -->
|
||
<div class="pswp__bg"></div>
|
||
<!-- Slides wrapper with overflow:hidden. -->
|
||
<div class="pswp__scroll-wrap">
|
||
<!-- Container that holds slides.
|
||
PhotoSwipe keeps only 3 of them in the DOM to save memory.
|
||
Don't modify these 3 pswp__item elements, data is added later on. -->
|
||
<div class="pswp__container">
|
||
<div class="pswp__item"></div>
|
||
<div class="pswp__item"></div>
|
||
<div class="pswp__item"></div>
|
||
</div>
|
||
<!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
|
||
<div class="pswp__ui pswp__ui--hidden">
|
||
<div class="pswp__top-bar">
|
||
<!-- Controls are self-explanatory. Order can be changed. -->
|
||
<div class="pswp__counter"></div>
|
||
<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
|
||
<button class="pswp__button pswp__button--share" title="Share"></button>
|
||
<button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
|
||
<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
|
||
<!-- Preloader demo http://codepen.io/dimsemenov/pen/yyBWoR -->
|
||
<!-- element will get class pswp__preloader--active when preloader is running -->
|
||
<div class="pswp__preloader">
|
||
<div class="pswp__preloader__icn">
|
||
<div class="pswp__preloader__cut">
|
||
<div class="pswp__preloader__donut"></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
|
||
<div class="pswp__share-tooltip"></div>
|
||
</div>
|
||
<button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
|
||
</button>
|
||
<button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
|
||
</button>
|
||
<div class="pswp__caption">
|
||
<div class="pswp__caption__center"></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- Global site tag (gtag.js) - Google Analytics -->
|
||
<script async src="//www.googletagmanager.com/gtag/js?id=UA-157733505-1"></script>
|
||
<script>
|
||
window.dataLayer = window.dataLayer || [];
|
||
function gtag() {
|
||
dataLayer.push(arguments);
|
||
}
|
||
gtag('js', new Date());
|
||
|
||
gtag('config', 'UA-157733505-1');
|
||
</script>
|
||
|
||
|
||
<script>
|
||
function initialTyped() {
|
||
var typedTextEl = $('.typed-text');
|
||
if (typedTextEl && typedTextEl.length > 0) {
|
||
var typed = new Typed('.typed-text', {
|
||
strings: ['凡事都要留几分', '颜值是第一生产力'],
|
||
typeSpeed: 90,
|
||
loop: true,
|
||
loopCount: Infinity,
|
||
backSpeed: 20,
|
||
});
|
||
}
|
||
}
|
||
|
||
if ($('.article-header') && $('.article-header').length) {
|
||
$(document).ready(function () {
|
||
initialTyped();
|
||
});
|
||
}
|
||
</script>
|
||
|
||
|
||
|
||
|
||
<!-- 例：百度统计 --> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?your_code"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script>
|
||
|
||
</html>
|