# tandasat/DdiMon

Monitoring and controlling kernel API calls with stealth hook using EPT

Repository: https://github.com/tandasat/DdiMon
Canonical: https://ross.abutalabs.com/products/ddimon
Language: C++
License: MIT
License Family: permissive
Last push: 2022-01-22T16:31:24+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3816, "days_push": 1684, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1398, forks 343 (observed 2026-08-28T04:04:36.853299+00:00)

## What it is
DdiMon is a hypervisor-based research tool that performs stealth inline hooking of Windows kernel API calls using Intel VT-x EPT memory shadowing, making hooks invisible to guests and PatchGuard. It is built on HyperPlatform and serves as an educational resource for programming with EPT.

## Use cases
- monitor kernel API calls without being detected by PatchGuard
- hide processes from NtQuerySystemInformation invisibly
- learn how to program with Intel EPT and memory shadowing
- research stealth hooking techniques on x64 Windows
- intercept DDI calls like ExAllocatePoolWithTag and ExQueueWorkItem

## When to choose
- you need kernel API hooks invisible to PatchGuard and guest memory reads
- you want a practical educational example of EPT-based hypervisor programming on Windows
- you are researching stealth monitoring of kernel driver interfaces

## When to avoid
- you need a production-ready or actively maintained monitoring solution
- your system lacks Intel VT-x and EPT support
- you need hooks on non-Windows platforms or user-mode APIs
- you cannot enable test signing for kernel drivers

## Facets
- artifact type: library
- maturity: maintenance
- function: security, reverse-engineering, monitoring
- domain: security, reverse-engineering, operating-systems, developer-tools
- platform: windows, cpp
- tags: hypervisor, ept, stealth-hooking, patchguard, kernel-driver, memory-shadowing, hyperplatform, educational

## Member repositories
- tandasat/DdiMon (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:36.853299+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:39:14.741185+00:00, confidence not recorded.
  - readme: https://github.com/tandasat/DdiMon (fetched 2026-08-28T04:04:36.853299+00:00, sha 6cc51b6a5855)
- Data as of 2026-08-30T08:39:29.467469+00:00.