Web Developer for Chrome v0.4.9 Malicious Backdoor Supply Chain Compromise

Web Developer for Chrome v0.4.9 contained malicious code that generated a domain via a DGA and fetched a remote script. The fetched script conditionally loaded follow-on modules that performed extensive ad substitution and malvertising, displayed fake “repair” alerts that redirected users to affiliate programs, and attempted to harvest credentials when users logged in. Injected components enumerate common banner sizes for substitution, replace third-party ad calls, and redirect victim traffic to affiliate landing pages. Potential impacts include user-level code execution in the browser context, large-scale ad fraud and traffic hijacking, credential theft, and exposure to additional payloads delivered by the actor. The compromise was reported on by the maintainer of Web Developer for Chrome on August 2, 2017 and remediated in v0.5.0.

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内嵌的恶意代码

Web Developer for Chrome 安全漏洞

Web Developer for Chrome是Chris Pederick个人开发者的一个浏览器开发者扩展。 Web Developer for Chrome 0.4.9版本存在安全漏洞，该漏洞源于恶意代码通过DGA生成域名并获取远程脚本，可能导致用户级代码执行、大规模广告欺诈、流量劫持和凭据窃取。

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