Ross ROSS = Recommend OSS · open-source software intelligence for agents

nccgroup/demiguise

HTA encryption tool for RedTeams observed · 2026-08-28

github.com/nccgroup/demiguise · homepage · Python · AGPL-3.0 (copyleft) observed · 2026-08-28

Health v2 · maintenance only

32/100

  • Activity 0
  • Release rhythm 35
  • Longevity 100

Flags: no_releases

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 3325
  • days_rel: n/a
  • days_push: 1393
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

1429 stars · 245 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Demiguise is a Python CLI tool from NCC Group that generates HTML files containing RC4-encrypted HTA payloads, which are decrypted dynamically in the browser at runtime. It is designed for red team operations to bypass content/file-type inspection by security appliances and evade sandboxing via environmental keying.

Use cases

  • encrypt an HTA payload inside an HTML page to evade proxy inspection
  • generate HTA files for red team phishing simulations
  • bypass security appliance file-type filtering
  • use environmental keying to avoid sandbox detonation
  • deliver payloads without plaintext HTA over HTTP
  • test detection of encrypted HTA delivery techniques

When to choose

  • you are a red teamer needing to deliver HTA payloads past content inspection
  • you want encrypted, browser-decrypted payload delivery with environmental keying
  • you need a lightweight Python tool for offensive HTA generation

When to avoid

  • you need to author sophisticated HTA payload content itself
  • you are building defensive tooling rather than offensive simulations
  • you need a maintained tool with recent updates or broad platform support

Facets

cli-tool · maturity maintenance

security cryptography cli security penetration-testing python cli windows red-team hta evasion offensive-security rc4 environmental-keying

1 source

Member repositories

RepositoryRoleHealth v2
nccgroup/demiguisemain32

For agents

markdown · JSON · MCP: product_card(name="nccgroup/demiguise")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem