MAL-2026-15608

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/mjsdqwocvn/MAL-2026-15608.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-15608
Published
2026-08-26T14:55:09Z
Modified
2026-08-31T07:15:14.127413552Z
Summary
Malicious code in mjsdqwocvn (npm)
Details

Published as part of a ClickFix-style fake-CAPTCHA phishing campaign documented by OX Security (see reference). The package's only file is index.html, declared as the npm "main" entry; package.json defines no preinstall/install/postinstall/prepare lifecycle script, so the payload does not execute at npm install time. index.html renders a fake Cloudflare Turnstile verification widget. An obfuscator.io-obfuscated inline script builds a hardcoded redirect URL to https://login.microsofte.live/ (a typosquat of a Microsoft sign-in domain), appends the visitor's original query-string parameters, and navigates the browser there via window.location.replace(). The package therefore does not attack the installing machine directly; it is used as a static file host on the npm CDN (e.g. unpkg/jsDelivr) so the index.html can be linked to and opened directly in a victim's browser as a phishing/ClickFix landing page. Published by npm user "johnvaldez9a" as part of a burst of near-identical single-purpose packages published between 2026-08-04 and 2026-08-24 that share this same fake-Turnstile-redirect page structure.

References
Credits

Affected packages

npm / mjsdqwocvn

Package

Name
mjsdqwocvn
View open source insights on deps.dev
Purl
pkg:npm/mjsdqwocvn

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/mjsdqwocvn/MAL-2026-15608.json"
iocs 
{
    "files": [
        {
            "note": "Fake Cloudflare Turnstile page bundled as the package's main entry (from v1.0.0, the latest published version)",
            "source": "PACKAGE_ARCHIVE",
            "digests": {
                "sha256": "cf659ea6d6466614d68ecc81d7046b880964628a46777c73e17eee9d4f9759c3"
            },
            "paths": [
                "index.html"
            ]
        }
    ],
    "domains": [
        "login.microsofte.live"
    ]
}