MalwarePublished 13 Jul 2026Updated 20 Aug 2026

filewisee (npm) · Malicious Code

Affects filewiseeSource GCVE Database

Malicious package : remove filewisee and rotate any secrets on hosts that installed it.

Data as of 20 Aug 2026, 16:56 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-10501

What to do

Remove filewisee from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npmfilewisee	Affected =0.1.0 =0.1.1	Fixed in–

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Description

The npm package 'filewisee' versions 0.1.0 and 0.1.1 contains malicious code that downloads and executes an opaque binary from an anonymous external host. This binary is saved in a hidden directory under the user's home folder and executed with hidden process settings, without any verification of the downloaded content. The package masquerades as a date-formatting utility to trick users into invoking the malicious functionality. Systems with this package installed should be considered fully compromised.

Impact

Any computer with the affected versions of 'filewisee' installed or running should be considered fully compromised. The malicious binary executed by the package may grant full control to an attacker. All secrets and keys stored on the compromised system should be rotated immediately from a separate, trusted environment. Removing the package alone does not guarantee removal of all malicious components or backdoors installed by the binary.

Defensive guidance

Immediate removal of the 'filewisee' package versions 0.1.0 and 0.1.1 is recommended. All credentials and secrets stored on the affected system should be rotated from a different, secure machine. Due to the high likelihood of full system compromise, a full system investigation and remediation is advised.

Summary

The 'filewisee' npm package, specifically versions 0.1.0 and 0.1.1, exports a function 'formatd' that, when called, downloads a binary from an anonymous file host (pixeldrain.com), writes it to a hidden directory (~/.drc/dr), sets executable permissions, and runs it with hidden process options. There is no integrity verification of the binary, and the host is unrelated to the package publisher. The package's API surface is designed to appear as a legitimate date-formatting utility, increasing the likelihood that users will invoke the malicious function unknowingly. This behavior effectively compromises any system running the package.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 20 Aug 2026, 16:56 UTC

Technical details

References

Community reviews