MAL-2026-17161

    Dashboard / Malicious Package / MAL-2026-17161

    MAL-2026-17161

    Published: 24 Sept 2026Last Modified: 24 Sept 2026

    Summary: Malicious code in simple-date-formatter-new-15 (npm)

    Details: Source: amazon-inspector (005b96d3c3d5f1a071c40a8b72ea22b5e0221db32cfffacfc8f2343f0ee97eb0) The package's package.json postinstall script curls cloud instance-metadata endpoints (AWS IMDS at 169.254.169.254/latest/meta-data/sts-credential, Alibaba/Tencent metadata at metadata.tencentyun.com and 169.254.0.23) into /tmp files and POSTs their concatenated contents plus `ls -la /data/` output to a remote collector (placeholder host YOUR_BURP_SERVER). The tarball additionally ships postinstall.js containing getSSHKeys(), which reads ~/.ssh from the installer's home directory along with username/platform metadata and POSTs the payload over HTTPS to a hardcoded bare IP 124.221.154.135:443/post. Installing the package runs the lifecycle exfiltration automatically; the SSH-key harvester is bundled dropper code aligned with the same intent. The trivial 'date formatter' name and the presence of a placeholder collector indicate a PoC/typosquat stub in an ongoing credential-theft campaign.

    References: https://www.npmjs.com/package/simple-date-formatter-new-15/v/1.0.0

    Affected packages

    Package

    Name: simple-date-formatter-new-15

    Purl: pkg:npm/simple-date-formatter-new-15

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0