MAL-2026-12044

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/specials-mvno-client/MAL-2026-12044.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12044
Aliases
  • GHSA-h383-rw87-5jgw
Published
2026-08-05T01:22:17Z
Modified
2026-08-06T01:21:14.481571300Z
Summary
Malicious code in specials-mvno-client (npm)
Details

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

Source: amazon-inspector (852448e1055feb834486a41aaf7e1a621a52fc4e9a496f34c0bde833e751434b)

index.js requires bootstrap.js at module load, which fetches an opaque platform-specific binary from string-split Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev) and *.dl.well1.site subdomains, writes it to /var/tmp or %TEMP% under disguised filenames (.cache<hex> on Unix, dotnetdiag<hex>.exe on Windows), chmods 0755, and spawns it detached via spawn('/bin/sh', ['-c', <path>+' &']) or cmd.exe /c start /b. Host names are assembled via array.join to defeat literal string matching. A DNS-TXT fallback channel resolves TXT records under c.<domain> and N.<domain>, concatenating base64 chunks to deliver code when HTTPS is unavailable. The module is cloaked with telemetry-shaped naming (.analyticsstate state file, comments describing 'CDN negotiation') and honors DISABLETELEMETRY / DONOTTRACK / ANALYTICSOPTOUT environment variables to skip execution on scrutinized hosts. The fetched bytes are not publisher-hosted, are opaque, and are executed on every install/require of the package.

Source: ghsa-malware (00eaa2ebac94cb5c33bd87a9c91bf14d3aaef64a30c14cef784d78d0444baac8)

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.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T01:22:17Z",
            "sha256": "852448e1055feb834486a41aaf7e1a621a52fc4e9a496f34c0bde833e751434b",
            "id": "IN-MAL-2026-011494",
            "versions": [
                "20.9.8"
            ],
            "import_time": "2026-08-05T01:39:31.523344739Z"
        },
        {
            "import_time": "2026-08-06T00:58:53.381687054Z",
            "sha256": "00eaa2ebac94cb5c33bd87a9c91bf14d3aaef64a30c14cef784d78d0444baac8",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-h383-rw87-5jgw",
            "modified_time": "2026-08-05T20:29:24Z",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / specials-mvno-client

Package

Name
specials-mvno-client
View open source insights on deps.dev
Purl
pkg:npm/specials-mvno-client

Affected ranges

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

Affected versions

20.*
20.9.8

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-in0E0ulCSRraQ+zM7cRJnf+XXYPXfO/wU4MXcB9cWm8QR/kHG6P1gu0if2DJe2DgegW+R8OYMW/v8kVujLkvwQ==",
                "sha1": "e6b3777e0068349bfe12e0d9872fd873b34b80f0"
            },
            "filename": "specials-mvno-client-20.9.8.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_bootstrap.js",
            "sha256": "43d1438cec9923857e624e4d4016e9da1112a52e531f6126bcb51a9dde428f4e",
            "tlsh": "96a175aa05a671198bb0d7e48717481bf65bf6633380c584fb5c95484f72524c3b2efc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/specials-mvno-client/MAL-2026-12044.json"