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I built a tool that runs your Windows installer on a clean VM to see if SmartScreen will warn your users

If you ship a Windows app you've probably seen "Windows protected your PC" on your own installer. Signing alone doesn't prevent it: SmartScreen goes by reputation for the exact file and certificate, and that resets on every release and every certificate renewal. There's no way to ask Microsoft in advance. So I built SignalScreen: https://signalscreen.dev Free signing check : upload an .exe and get a grade (signed? timestamped? SHA-1? real CA? certificate expiry). Checked in memory, n

五维评分

付费意愿
65
需求真实度
70
个人可落地
55
竞争空间
70
新鲜度
85

AI 分析

痛点:Windows 应用发布者无法提前知道新安装包是否会被 SmartScreen 拦截,签名不能保证通过且声誉每次发版/换证书都会重置。

目标用户:Windows 桌面应用开发者、独立软件发行商、使用代码签名证书的 SaaS/客户端团队。

证据:If you ship a Windows app you've probably seen "Windows protected your PC" on your own installer. Signing alone doesn't prevent it: SmartScreen goes by reputation for the exact file and certificate, and that resets on every release and every certificate renewal. There's no way to ask Microsoft in advance.

变现:按次探针收费、订阅制(每月 N 次探针 + CI 集成)、为发行团队提供发布前 SmartScreen 监控和证书/签名审计。

MVP:用一台可重置的 Windows 11 VM,半自动接收 exe/msi,打上 Mark-of-the-Web 后启动,截取 SmartScreen 提示或无提示结果,返回截图、证书信息和简单评分;先人工交付验证付费,再自动化队列与隔离。

竞品:VirusTotal、Any.Run、Joe Sandbox、SignPath

摘要:SignalScreen 针对 Windows 安装包发布前无法预知 SmartScreen 是否拦截的痛点,提供签名评分和全新 Windows 11 VM 实测探针,返回是否警告、弹窗文本、截图及文件/证书详情。作者指出签名本身不能避免 SmartScreen 拦截,文件与证书声誉会在每次发版和换证书时重置,且无法提前询问微软。探针目前 beta 免费,属于面向 Windows 开发者的 B2B 开发工具机会。