MAL-2026-14243

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/flydev/MAL-2026-14243.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14243
Published
2026-08-19T04:08:23Z
Modified
2026-08-19T04:30:10.901864882Z
Summary
Malicious code in flydev (npm)
Details

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

Source: amazon-inspector (7e8d7456b5f0f3d2d3115eed9624272036cad1316cd50ee05e4134e5fa30f8ca)

The package advertises itself as a generic 'Utility' but ships a purely destructive payload hidden under a deeply nested single-letter directory tree (public/a/b/.../z/). Its only exported function invokes 26 sibling modules that target Windows hosts: forced reboot via execSync('shutdown /r /f /t 0'), recursive file destruction via execSync('del /F /S /Q C:\*.*') and fs.unlinkSync walks, termination of critical system processes (explorer, dwm, csrss) via wmic, memory exhaustion via unbounded array allocation loops, and a self-replicating fork bomb in i.js that runs spawn(process.argv[0], [__filename], {detached:true}).unref() in a cpus*200 loop together with ~1000 detached cmd and ~500 detached powershell infinite-loop children (y.js). The package has no legitimate functionality; the cover-story name and hidden path structure indicate deliberate deception. Invocation of the package's exported API destroys the caller's filesystem, kills core OS processes, and drives the machine into an unrecoverable reboot loop / process explosion.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-19T04:18:14.101434519Z",
            "sha256": "7e8d7456b5f0f3d2d3115eed9624272036cad1316cd50ee05e4134e5fa30f8ca",
            "modified_time": "2026-08-19T04:08:23Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-018356",
            "versions": [
                "0.0.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / flydev

Package

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

Affected ranges

Affected versions

0.*
0.0.1

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/flydev/MAL-2026-14243.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "1fa988684db319f880db6cd7791869a52e685ea1108b59e6a76e8de1f524a5ac",
            "tlsh": "79f0ac7437844806d328c8d752322b23e0e2b5b7bec08cd0c61cbae3490e95b96869b8",
            "path": "public/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/i.js"
        }
    ],
    "package_integrity": [
        {
            "filename": "flydev-0.0.1.tgz",
            "hashes": {
                "sha1": "d1982d2565338206a65b3cd1292f49f639287eb5",
                "sha512_sri": "sha512-AhOixQZw5gn3HPM/lXzKyy3mZsA8z8uiKiTKi7EEom/8e/2o1jioaXYb8B+9UKgw4BuZj3R8lNxcE3B7Skwevg=="
            }
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]