{"id":33244971,"url":"https://github.com/newsoft/envoye-special-decryptor","last_synced_at":"2026-02-05T13:13:27.808Z","repository":{"id":147572094,"uuid":"114478336","full_name":"newsoft/envoye-special-decryptor","owner":"newsoft","description":"Ransomware decryption tool","archived":false,"fork":false,"pushed_at":"2017-12-16T17:28:49.000Z","size":3,"stargazers_count":8,"open_issues_count":0,"forks_count":2,"subscribers_count":2,"default_branch":"master","last_synced_at":"2024-04-09T10:32:12.357Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"C#","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/newsoft.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null}},"created_at":"2017-12-16T17:28:41.000Z","updated_at":"2023-09-23T23:46:26.000Z","dependencies_parsed_at":"2023-05-31T16:15:48.663Z","dependency_job_id":null,"html_url":"https://github.com/newsoft/envoye-special-decryptor","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/newsoft/envoye-special-decryptor","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/newsoft%2Fenvoye-special-decryptor","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/newsoft%2Fenvoye-special-decryptor/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/newsoft%2Fenvoye-special-decryptor/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/newsoft%2Fenvoye-special-decryptor/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/newsoft","download_url":"https://codeload.github.com/newsoft/envoye-special-decryptor/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/newsoft%2Fenvoye-special-decryptor/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":285636544,"owners_count":27205878,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-11-21T02:00:06.175Z","response_time":61,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"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":[],"created_at":"2025-11-16T21:00:32.205Z","updated_at":"2025-11-21T15:01:15.514Z","avatar_url":"https://github.com/newsoft.png","language":"C#","readme":"# LockOn Decryptor\n\nIf you have watched  [Envoye Special](https://www.youtube.com/watch?v=JrFoFBNfv7A) on 14-DEC-2017, you might have noticed the following piece of ransomware used: [5691844cacd14051ddd92ae5e50b13cf](https://www.virustotal.com/#/file/a65bf23405e3f74015ee5215c3cafcb1d73d7cd7939c8f50dd73c6ca00f30c3c/detection).\n\nThis malware is non-functional (merely a test) ; it will only encrypt files under `C:\\testrw`.\n\nNevertheless here is a decryption tool that might become handy:\n1. Checkout `Program.cs`\n2. Compile with `C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319\\csc.exe Program.cs` (requires .NET Framework 4.0).\n3. Locate `windowsdefender.bin` master key file (usually located in `%TEMP%`).\n4. Decrypt individual files, e.g. `Program.exe encrypted.lockon`.\n\nPS. There is another weakness in the software, but this one was the most straightforward to exploit.\n","funding_links":[],"categories":["Malware Analysis"],"sub_categories":["Ransomwares"],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnewsoft%2Fenvoye-special-decryptor","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnewsoft%2Fenvoye-special-decryptor","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnewsoft%2Fenvoye-special-decryptor/lists"}