MAL-2026-6514 Malicious code in dtxtools (npm)

package.json declares a postinstall lifecycle script that auto-executes on npm install. The hook performs a recursive filesystem search for database client binaries (mysql, mongo, mongosh, psql, redis-cli, sqlite3, elasticsearch), writes results to /data/db_clients_check.txt, and POSTs the collected output via plain-HTTP curl to http://3dhd6wwmusbh04m22igmzvb4hvnmblza.oastify.com, a Burp Collaborator (OAST) subdomain used as an out-of-band attacker channel. The package advertises itself as a string-utility library (index.js header references easy-string-kit) and ships benign-looking helper code as a cover; the install-time reconnaissance and exfiltration are unrelated to that advertised purpose. Author, repository, bugs, and homepage fields in package.json are empty, consistent with a disposable decoy publish.

The OpenSSF Package Analysis project identified 'dtxtools' @ 1.0.0 (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.