MAL-2026-13124

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ded-aa-liza-ded-aa-liza-core/MAL-2026-13124.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13124
Published
2026-08-05T15:17:21Z
Modified
2026-08-05T15:52:34.806611670Z
Summary
Malicious code in ded-aa-liza-ded-aa-liza-core (npm)
Details

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

Source: amazon-inspector (074f0a8014fabe8bdb281c1c07180290bcff2b10d67d723f1c7917ea198d5c5a)

On require() of ded-aa-liza-ded-aa-liza-core, index.js loads ext.js which downloads a platform-specific binary from hardcoded Cloudflare Workers endpoints (oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev) with a DNS TXT fallback channel to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. Destination hostnames are assembled at runtime by joining fragmented substring arrays (e.g. ["oob-wor","ker.cf103-070.workers.de","v"].join("")) rather than appearing as plain literals. The fetched payload is written to /var/tmp or %TEMP% under names disguised to mimic diagnostic tools (.cache<hex>, dotnetdiag<hex>.exe), made executable via fs.chmodSync(0o755), and spawned detached through /bin/sh -c or cmd. The package is advertised as foundational type definitions but performs no such function; the only import-time effect is dropping and executing an opaque remote binary on the installer's host.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "074f0a8014fabe8bdb281c1c07180290bcff2b10d67d723f1c7917ea198d5c5a",
            "source": "amazon-inspector",
            "versions": [
                "35.2.5"
            ],
            "import_time": "2026-08-05T15:20:01.22984098Z",
            "modified_time": "2026-08-05T15:17:21Z",
            "id": "IN-MAL-2026-015639"
        }
    ]
}
References
Credits

Affected packages

npm / ded-aa-liza-ded-aa-liza-core

Package

Name
ded-aa-liza-ded-aa-liza-core
View open source insights on deps.dev
Purl
pkg:npm/ded-aa-liza-ded-aa-liza-core

Affected ranges

Affected versions

35.*
35.2.5

Database specific

indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha1": "ef4f25a3f3016f9fec490669b605db7a653a9285",
                "sha512_sri": "sha512-5TCvuCfVVgFeKMVB74wqNPbzGCSOFXfhNVyGevmuMbSo5tcSclfWZEt62pKW3xvJ1YXvhXkoKizbLiyyjCPfVg=="
            },
            "filename": "ded-aa-liza-ded-aa-liza-core-35.2.5.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_ext.js",
            "sha256": "1fe92c7cafe4dbfbcbdd440413afba60ff43d298f2b422615d965cddd36bb6b8",
            "tlsh": "35a1a65a01a6a0198eb0d7e0c71b4816f65bf5633780c294f75ca5984f775248372efc"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ded-aa-liza-ded-aa-liza-core/MAL-2026-13124.json"