MAL-2026-18437: Malicious code in atlassian-wallboard-plugin (npm)
atlassian-wallboard-plugin@10.0.0 uses an Atlassian internal-looking name with a high version number and has no code; its package.json declares the dependency node-ac2 as a tarball from the GitHub repository GamerD11/pingtest, which in turn pulls node-ac3 from the same repository. On npm install, node-ac3's preinstall script (node index.js) runs curl -sf https://raw.githubusercontent.com/GamerD11/pingtest/main/test.txt to get a host name and sends an HTTPS POST to /health on that host, with certificate checks off, carrying the Node.js version, home directory, working directory, platform and architecture; test.txt has named Burp Collaborator (oastify.com) hosts. It was published by the npm account knbbd, which used the same dependency chain in claims-ac1, and the same second stage appears in dependencykfeg and claims-acct-unlock.
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Source: ghsa-malware (30942aaa0e65ed8771ba79e6370283c09a7d371a9f9fe4f47e2da7149dc119d8) 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.
Source: ossf-package-analysis (65fa335403aab4ce396a9df1a2b0d61634f51ee8d63db761c0ccf21f744b6292) The OpenSSF Package Analysis project identified 'atlassian-wallboard-plugin' @ 10.0.0 (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.