MAL-2026-17179

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/wallet-connect-adapter/MAL-2026-17179.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17179
Published
2026-09-25T02:38:56Z
Modified
2026-09-25T03:00:07Z
Summary
Malicious code in wallet-connect-adapter (npm)
Details

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

Source: amazon-inspector (4135dd91724bdca6fc36f3a49906d219acc67afde7802cb1bd114d128984ca3d)

The package's postinstall hook runs node./loader.js, which base64-decodes an ~8 KB embedded blob, XOR-decrypts it with a hardcoded 32-byte key, and pipes the resulting bytes into a detached, window-hidden python -c - child process via stdin. The loader also silently pip installs requests if missing. The advertised library surface in index.js is an explicit stub whose connect() throws, and package.json restricts installation to os: ["win32"], so the tarball has no functional wallet-adapter behavior — its only effect on install is to execute the obfuscated Python payload on a Windows developer's machine. The combination of a hidden opaque payload, XOR-obfuscated delivery, detached hidden Python execution at npm install time, an inert cover-story main module, and OS pinning to Windows is a targeted install-time dropper.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-020531",
            "import_time":  "2026-09-25T02:45:28.52017284Z",
            "modified_time":  "2026-09-25T02:38:56Z",
            "sha256":  "4135dd91724bdca6fc36f3a49906d219acc67afde7802cb1bd114d128984ca3d",
            "source":  "amazon-inspector",
            "versions":  [
                "1.4.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / wallet-connect-adapter

Package

Name
wallet-connect-adapter
View open source insights on deps.dev
Purl
pkg:npm/wallet-connect-adapter

Affected ranges

Affected versions

1.*
1.4.2

Database specific

cwes 
[
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "loader.js",
            "sha256":  "659956d8936ad347f41c1af3831d301e90f743eaf49596e3aa223defcf82c945",
            "tlsh":  "a1429fa53c3ae839223186fc1a7716e8125fc454566ee0c0b6cd8af6ed95cf85e770c1"
        },
        {
            "path":  "index.js",
            "sha256":  "dd8bd3467ca1c7cb2e9c8beebbd5f89255af044dc54cf2054db1add7f35b38a3",
            "tlsh":  "0ad0722d927693b0030b2140880adc50e7f84030a22196800a84c2989024e8ccaa27ca"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "wallet-connect-adapter-1.4.2.tgz",
            "hashes":  {
                "sha1":  "dfd8d0539f7adb0500f6b4ac3f03aafb956766ab",
                "sha512_sri":  "sha512-wLZ9LvWp03ifk0O4tv5Js+VU/JsButlHGIMbpaiXTu8RRGoalIsJyK2W/gI4Yr1GS6h0pV7zLirhEMSAY+pxow=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/wallet-connect-adapter/MAL-2026-17179.json"