MAL-2026-13040

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/boxy-devtools-tokens/MAL-2026-13040.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13040
Published
2026-08-05T14:32:40Z
Modified
2026-08-05T15:51:54.665692457Z
Summary
Malicious code in boxy-devtools-tokens (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (902a7b42df643551615d55958546ab9115082ac8eb60ff1208cafa18b804ab3c)

The package's main entry (index.js) unconditionally loads compat.js on require(). compat.js assembles a rotating list of Cloudflare Workers hostnames (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) from split string fragments joined via.join(''), with a DNS TXT fallback channel (c.<domain>/N.<domain> under *.dl.wel1.ru) used when HTTPS delivery is blocked. It downloads a platform-specific binary via https.get, writes it to a temp file with a disguised name, chmods it 0755 on Unix, and spawns it detached via spawn('/bin/sh',...) or spawn('cmd',...). An mtime stamp file suppresses re-execution, and environment variables named to resemble opt-out signals (DISABLETELEMETRY, ANALYTICSOPTOUT, DONOT_TRACK) gate execution. The package is advertised as a token library; the shipped code performs an out-of-band binary drop from attacker-controlled infrastructure with no relationship to that purpose.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T14:32:40Z",
            "id": "IN-MAL-2026-015343",
            "import_time": "2026-08-05T15:19:45.943588481Z",
            "versions": [
                "35.9.9"
            ],
            "source": "amazon-inspector",
            "sha256": "902a7b42df643551615d55958546ab9115082ac8eb60ff1208cafa18b804ab3c"
        }
    ]
}
References
Credits

Affected packages

npm / boxy-devtools-tokens

Package

Name
boxy-devtools-tokens
View open source insights on deps.dev
Purl
pkg:npm/boxy-devtools-tokens

Affected ranges

Affected versions

35.*
35.9.9

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "filename": "boxy-devtools-tokens-35.9.9.tgz",
            "hashes": {
                "sha512_sri": "sha512-1Vefqs9SHsz/Gziaz7p7Lveah5r4NyqsVZtBWbLAXFAkH7VDHW6kK8RAbSZa1YvezZCZk0lHuiLnNGxgSbWgng==",
                "sha1": "d05252e94259d1e26e88d4216b34ede5efdaf79e"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "_compat.js",
            "tlsh": "edb1a85a019a70188bb0d7f4c62b4426f55bf6633b8192c4f79c59985f72524c3b2efc",
            "sha256": "656c9104d43cdf1a00f429612db0156421282efa07a8acb7343edb266b08813b"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/boxy-devtools-tokens/MAL-2026-13040.json"