{"id":13799236,"url":"https://github.com/FSecureLABS/ViridianFuzzer","last_synced_at":"2025-05-13T06:32:38.660Z","repository":{"id":150358795,"uuid":"170724588","full_name":"FSecureLABS/ViridianFuzzer","owner":"FSecureLABS","description":"Kernel driver to fuzz Hyper-V hypercalls ","archived":false,"fork":false,"pushed_at":"2019-02-15T13:15:22.000Z","size":31,"stargazers_count":135,"open_issues_count":0,"forks_count":45,"subscribers_count":16,"default_branch":"master","last_synced_at":"2024-05-19T04:57:24.347Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"https://labs.mwrinfosecurity.com/blog/ventures-into-hyper-v-part-1-fuzzing-hypercalls","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/FSecureLABS.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}},"created_at":"2019-02-14T16:44:49.000Z","updated_at":"2024-02-08T07:23:12.000Z","dependencies_parsed_at":"2023-04-26T08:00:28.596Z","dependency_job_id":null,"html_url":"https://github.com/FSecureLABS/ViridianFuzzer","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/FSecureLABS%2FViridianFuzzer","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/FSecureLABS%2FViridianFuzzer/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/FSecureLABS%2FViridianFuzzer/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/FSecureLABS%2FViridianFuzzer/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/FSecureLABS","download_url":"https://codeload.github.com/FSecureLABS/ViridianFuzzer/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":225183827,"owners_count":17434194,"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","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":"2024-08-04T00:01:00.199Z","updated_at":"2024-11-18T13:32:03.561Z","avatar_url":"https://github.com/FSecureLABS.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Viridian Fuzzer \n\nIt is a kernel driver that make hypercalls, execute CPUID, read/write to MSRs from CPL0. \n\n### Requirements\n\n- Requires a scheduled task, start at logon with admin privs\n- Requires ViFu3.h defines for share address\n- Store credentials of parent UNC in guest credential manager\n- Compiled as x64 Debug\n- Tested in Win10, with Hypercall Dispatch Table extracted for 1607\n\n### Information\n\n- Every time a fuzz attempt is ran it first writes info to fuzz_logger.txt, and registry data to VIFU_LOG.txt\n- On fuzzer start, a datetime is written to fuzz_logger.txt, and checks if log has any data written to it. If so find the latest fuzz entry, and increment to next isFast/isRep, then continue fuzzing\n- To start/stop autostart of fuzzer, create/delete file autoStart.txt in the log share.\n  * Fuzzer won't start if it can't connect to share\n- To add more fuzzing rules:\n\tUM: add loops to BASIC FUZZER LOOPS, or increment switch() for specific conditions i.e. different GPA mem\n\tKM: if mod'ing GPA mem, in case IOCTL_HYPERCALL, add new `else if`\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FFSecureLABS%2FViridianFuzzer","html_url":"https://awesome.ecosyste.ms/projects/github.com%2FFSecureLABS%2FViridianFuzzer","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FFSecureLABS%2FViridianFuzzer/lists"}