背景：客户是地产行业客户，云服务器主要部署OA和sql server数据库，由于内部IT薄弱，没有做好安全防护，导致服务器被病毒入侵。问题回顾：1：服务器遭受勒索病毒攻击，导致服务器OA文件和数据库文件被锁，OA网站无法打开，数据库表无法读取。2：业务瘫痪期间，企业无法展开工作，对企业造成无法想象后果数据库文件一旦无法找回，整个部门甚至公司将因此停摆3：同时D盘被勒索病毒加密，被加密文件无法使....

文章 2021-02-03 来自：开发者社区

云安全威胁管理 | 解密新型 SQL Server 无文件持久化恶意程序

近期，阿里云云安全中心基于全新的深度威胁检测功能，监测到云上部分用户的 SQL Server 数据库内部隐藏着一种新型的持久化后门程序。攻击者利用弱口令不严谨配置，以非常简单的攻击方法进入数据库，即可植入该后门，更致命的是，该后门高度隐蔽和持久化控制的特性，让发现和清除变得困难。威胁特点植入简单利用数据库弱密码或不严谨配置，攻击者只需简单的弱口令利用，即可轻松登录进用户的数据库植入该后门程....

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