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Malicious package

@not-nemo/crypto-trackernpm

Malicious code in @not-nemo/crypto-tracker (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-2491
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @not-nemo/crypto-tracker

What this malware does

The package @not-nemo/crypto-tracker was found to contain malicious code.

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.

The OpenSSF Package Analysis project identified '@not-nemo/crypto-tracker' @ 1.0.4 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

  • The package executes one or more commands associated with malicious behavior.

Malicious versions

3 flagged
1.0.21.0.41.0.6

Indicators of compromise (SHA-256)

ea17f56ef1fb7ef83948c93f1732d99f1a6872674f99bd760b495485ae9ecf17
1bed3b8ea568ce24961be87df1f047694f75f2d4fb18fec2f25bed89a3461fc6
9f3d07c3fa41dbb4ad057bb2b346b271dcbef43545376e8a8ad252d64abd7e25
4fe0af659eed29b3995aca2e6fa9df6235a5975f8d72857c33a9e784ffa0b23f
7b01df927b75a468ee8dd5840724e8af75db2bf25c2488317d44ef99518c1ebc

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @not-nemo/crypto-tracker (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @not-nemo/crypto-tracker across your stack and pipelines.

  2. If you installed it — respond

    Remove @not-nemo/crypto-tracker 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 @not-nemo/crypto-tracker was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks @not-nemo/crypto-tracker before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. @not-nemo/crypto-tracker on npm has been identified as a malicious package (versions 1.0.2, 1.0.4, 1.0.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-hv5v-f7p3-36rp

References

Credits

  • Amazon Inspector · finder
  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks @not-nemo/crypto-tracker-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.

@not-nemo/crypto-tracker (npm) malicious package — MAL-2026-2491 | O3 Security