Which versions of yt-smm are malicious?

The following npm versions of yt-smm are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate yt-smm if I installed it?

Remove yt-smm 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.

I already installed yt-smm — how do I know if it already compromised me?

If yt-smm 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.

Is yt-smm part of a known attack campaign?

Yes — yt-smm is associated with the GHSA-6xv9-8hr4-x9q2, RLMA-2025-06544 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find yt-smm across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for yt-smm (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging yt-smm across your stack and pipelines.

Malicious package

yt-smmnpm

Malicious code in yt-smm (npm) Remove it immediately and rotate any exposed credentials.

MAL-2025-192657

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall yt-smm

What this malware does

The package yt-smm 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.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

b4d96978cd4e109ed8b360f551af24fd1621dd659f63a490c9de077b587f607b

3641ecf42237a55c9fb81c4368aa7b83a42d2110a64a733f45d27005cf38dc26

400bac4af1eb9abc8e69096651830228d9924347361595faecbd67ebc87aafa7

Detection & response playbook

Malicious package

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for yt-smm (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging yt-smm across your stack and pipelines.
If you installed it — respond
Remove yt-smm 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.
Did it already run?
If yt-smm 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.
How O3 protects you
O3 blocks yt-smm 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. yt-smm on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-6xv9-8hr4-x9q2RLMA-2025-06544

References

github.com

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks yt-smm-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.

Malware detection Runtime egress monitoring