MalwarePublished 10 Nov 2025

bayu-ketan16-breki (npm) · Malicious Code

Affects bayu-ketan16-brekiSource GCVE Database

Malicious package : remove bayu-ketan16-breki and rotate any secrets on hosts that installed it.

Data as of 4 Nov 2026, 19:27 UTC

Classification

Malicious package

Published to npm · OSV MAL-2025-49859

What to do

Remove bayu-ketan16-breki 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
npmbayu-ketan16-breki	Affected–	Fixed in–

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Description

The npm package bayu-ketan16-breki contains malicious code linked to the tea.xyz token reward campaign, which flooded npm with over 15,000 spam packages in 2024. These packages include autopublish scripts that automatically generate and publish derivative packages with randomized Indonesian-themed names. The malicious payload modifies package.json files to remove private flags, change version numbers, and continuously republish variants, polluting the npm registry and inflating developer reputation scores for token rewards.

Impact

The malicious package pollutes the npm registry with numerous derivative packages, potentially degrading the quality and trustworthiness of the npm ecosystem. It artificially inflates developer reputation scores by exploiting the token reward system, which could mislead users and automated systems relying on reputation metrics. There is no indication of direct exploitation or compromise of user systems beyond registry pollution and reputation manipulation.

Defensive guidance

Users and organizations should avoid installing the bayu-ketan16-breki package and other related packages from the tea.xyz token reward campaign. Registry maintainers and npm administrators should consider removing these spam packages to preserve ecosystem integrity. Monitoring for and blocking packages exhibiting autopublish behavior with randomized names may help mitigate similar threats.

Summary

The bayu-ketan16-breki npm package is part of a large-scale malicious campaign associated with tea.xyz token rewards. It contains autopublish scripts (e.g., auto.js, autopublish.js) that automate the creation and publication of numerous derivative packages with randomized names. The malicious code alters package.json by removing private flags and modifying version numbers to enable repeated publication. This behavior results in registry pollution and artificially inflates developer reputation scores within the tea protocol token ecosystem.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 4 Nov 2026, 19:27 UTC

Technical details

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