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Malicious package

sfx-datanpm

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

MAL-2026-2801
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall sfx-data

What this malware does

The package sfx-data was found to contain malicious code.

Malicious versions

3 flagged
2.1.02.1.199.0.0

Indicators of compromise (SHA-256)

545440223f73c3799538b3733680f9b3031bd6fb747dc967a91a9676c5ceef1e
d3fe291f014f24a669e43d0092e768f822241c223899812aeeb652ade2dcc63f

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 sfx-data (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging sfx-data across your stack and pipelines.

  2. If you installed it — respond

    Remove sfx-data 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 sfx-data 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 sfx-data 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. sfx-data on npm has been identified as a malicious package (versions 2.1.0, 2.1.1, 99.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-02040

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks sfx-data-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.

sfx-data (npm) malicious package — MAL-2026-2801 | O3 Security