域名遮蔽
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域名遮蔽是一种攻击技术,威胁行为者未经授权访问合法域名的[[dns|DNS]]注册商账户,在不干扰父站点的情况下,秘密在该可信域名下创建恶意子域名。由于父域名具有已建立的信誉,被遮蔽的子域名会继承其信任分数,不易被安全过滤器拦截。此攻击通常采用[[domain-hijacking|账户凭证窃取]]而非完全的域名劫持,使其能够长期潜伏而不被发现。遮蔽子域名常被用于托管钓鱼页面、传播恶意软件或作为命令与控制基础设施。
示例
Attackers compromise the registrar account of a law firm, create 'payment.lawfirm.com' pointing to a phishing server, and send invoices to clients — the trusted domain name bypasses email filters.