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Malicious package

dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xjnpm

Advisory published Updated

dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj is a confirmed malicious npm package (MAL-2026-19521) that executes malicious code on install. Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj (npm)

MAL-2026-19521
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj

What this malware does

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Indicators of compromise (SHA-256)

e9d4d60622f24fa87ce148567f6c20bca15ad579de61c3721a36a4b03aa99487

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj (all published versions).

  2. If you installed it — respond

    Remove dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj 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. dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj on npm has been identified as a malicious package (all published versions flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-m4q6-3pvj-4ww4

References

Detect & block this

O3 blocks dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj-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

dowload_ebok_moon_knight_2016_t01_by_jeff_lemire_greg_smallwood_zl1xj (npm) malicious package — MAL-2026-19521 | O3 Security