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Malicious package

lshcrates.io

Malicious code in lsh (crates.io) Remove it immediately and rotate any exposed credentials.

MAL-2026-3126
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
remove lsh

What this malware does

The OpenSSF Package Analysis project identified 'lsh' @ 99.0.1 (crates.io) 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

2 flagged
99.0.199.1.0

Indicators of compromise (SHA-256)

8cd6cecd3051e3998c5f96ec8dbe1bcfffc1ed7133d394a1779c8c1b0252c8c0
0d659fd33aac3eba6d4a9616642cd843d8cb7ae8a7433d94cad9dade68235d9e

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 lsh (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging lsh across your stack and pipelines.

  2. If you installed it — respond

    Remove lsh 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 lsh 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 lsh 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. lsh on crates.io has been identified as a malicious package (versions 99.0.1, 99.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks lsh-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.

lsh (crates.io) malicious package — MAL-2026-3126 | O3 Security