sourceflow-trackernpm
Advisory published Updated
sourceflow-tracker is a confirmed malicious npm package (MAL-2026-5166) that executes malicious code on install (malicious version 99.91.9). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in sourceflow-tracker (npm)
What this malware does
package.json declares a dependency ltidisafe resolved directly from a raw tarball URL on a generic Google Cloud Storage bucket (https://storage.googleapis.com/lscunpentest/pack_ux_foundry.tgz). The tarball is unversioned, carries no integrity hash, and is hosted on infrastructure unrelated to any documented publisher; the bucket owner can replace its bytes at any time without changing the URL. On npm install, npm fetches and installs this tarball transitively and runs any lifecycle scripts it ships. The visible package itself is a stub: index.js only contains console.log("hello from lslslslslss"), package metadata is placeholder gibberish (description lspodcc, author lslsls), and the version is set to 99.91.9 — a pattern consistent with dependency-confusion attempts to outrank a legitimate internal package of the same name. The package's only practical effect when installed is to drop attacker-mutable code into the consumer's install graph.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
The OpenSSF Package Analysis project identified 'sourceflow-tracker' @ 99.91.9 (npm) as malicious.
It is considered malicious because:
- The package communicates with a domain associated with malicious activity.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for sourceflow-tracker (version 99.91.9).
If you installed it — respond
Remove sourceflow-tracker 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.
Did it already run?
If sourceflow-tracker was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
- OpenSSF: Package Analysis · finder
Detect & block this
O3 blocks sourceflow-tracker-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.