MalwarePublished 26 Jun 2026

dttfdsdee (npm) · Malicious Code

Affects dttfdsdeeSource GCVE Database

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

Data as of 26 Jun 2026, 22:24 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-6498

What to do

Remove dttfdsdee 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
npmdttfdsdee	Affected 1.0.0 – 1.0.6 7 affected builds	Fixed in–

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Description

The npm package 'dttfdsdee' versions 1.0.0 through 1.0.6 contains malicious code that executes automatically upon installation. It performs filesystem reconnaissance to locate database client binaries and exfiltrates the collected data to an attacker-controlled external server. The package masquerades as a benign utility but exhibits behavior inconsistent with its advertised purpose, indicating it is designed as disposable reconnaissance bait.

Impact

Installing any affected version of the 'dttfdsdee' package results in immediate reconnaissance of the local filesystem to identify database clients, followed by exfiltration of this information to an attacker-controlled server. This compromises confidentiality by leaking potentially sensitive environment details to unauthorized parties. There is no indication of further exploitation beyond data exfiltration in the provided data.

Defensive guidance

Users should avoid installing any versions of 'dttfdsdee' listed as affected. Remove the package from any environments where it has been installed. Since this is a malicious package, the best mitigation is to block its use and remove it from dependency trees. Monitor for any unexpected network connections to suspicious domains and audit systems for signs of compromise related to this package.

Summary

The 'dttfdsdee' npm package declares a postinstall script that runs automatically during npm install. This script searches the entire filesystem for database client binaries such as mysql, mongo, mongosh, psql, redis-cli, sqlite3, and elasticsearch, writing the findings to a local file. It then sends the contents of this file via an HTTP POST request to a remote domain associated with malicious activity. The package's metadata is minimal and misleading, with an empty author field and no repository or homepage information, consistent with malicious intent. This behavior was identified by the OpenSSF Package Analysis project and Amazon Inspector, confirming the package as malicious.

References

Community reviews

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What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Jun 2026, 22:24 UTC

Technical details

References

Community reviews