dttfdsdeenpm
dttfdsdee is a confirmed malicious npm package (MAL-2026-6498) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.1, 1.0.2…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in dttfdsdee (npm)
What this malware does
package.json declares a postinstall script that runs automatically on npm install. The script walks the entire filesystem with find to locate database client binaries (mysql, mongo, mongosh, psql, redis-cli, sqlite3, elasticsearch), writes the results to /data/db_clients_check.txt, and then uses curl -X POST to send local file contents to an out-of-band callback at http://3dhd6wwmusbh04m22igmzvb4hvnmblza.oastify.com (oastify.com is the Burp Collaborator OOB interaction domain). The package presents itself as a generic string-utility helper with benign filler in index.js, but the advertised purpose is wholly inconsistent with the install-time behavior; metadata is hollow (empty author, empty repository, empty homepage) and the name is a random string — consistent with disposable reconnaissance bait. Installing the package on a developer or CI machine causes immediate filesystem reconnaissance and exfiltration to attacker-controlled infrastructure.
The OpenSSF Package Analysis project identified 'dttfdsdee' @ 1.0.1 (npm) 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
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for dttfdsdee (7 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging dttfdsdee across your stack and pipelines.
If you installed it — respond
dttfdsdee is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If dttfdsdee 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 dttfdsdee 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
Campaign
References
Credits
- Amazon Inspector · finder
- OpenSSF: Package Analysis · finder
Detect & block this
O3 blocks dttfdsdee-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.