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Malicious package

elf-stats-evergreen-mitten-361npm

Advisory published Updated

elf-stats-evergreen-mitten-361 is a confirmed malicious npm package (MAL-2025-192023) that executes malicious code on install (malicious version 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in elf-stats-evergreen-mitten-361 (npm)

MAL-2025-192023
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall elf-stats-evergreen-mitten-361

What this malware does

The package elf-stats-evergreen-mitten-361 was found to contain malicious code.

Malicious versions

1 flagged
1.0.1

Indicators of compromise (SHA-256)

e4d8304035d100acd704de819a03902cf3ea8e8eddbe0e3d703de2080088c632
4de01950dd99e0361bb00cf65391aaee60d28e31ba4fb398a38540f6f6a20dd0

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for elf-stats-evergreen-mitten-361 (version 1.0.1).

  2. If you installed it — respond

    Remove elf-stats-evergreen-mitten-361 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 elf-stats-evergreen-mitten-361 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. elf-stats-evergreen-mitten-361 on npm has been identified as a malicious package (version 1.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06172

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks elf-stats-evergreen-mitten-361-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

elf-stats-evergreen-mitten-361 (npm) malicious package — MAL-2025-192023 | O3 Security