MAL-2026-18130

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@sudobility/wildduck_client/MAL-2026-18130.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18130
Aliases
  • GHSA-5ff7-5w72-hm63
Published
2026-10-21T22:21:01Z
Modified
2026-10-22T16:45:28Z
Summary
Malicious code in @sudobility/wildduck_client (npm)
Details

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

Source: amazon-inspector (a4524dc6ef26909f4ddfaf83eae1ec13495a5b2aef57375c0a8d8ad4c0609637)

The package declares a postinstall hook that executes scripts/miner.sh on npm install. The script fetches a gzipped payload from a presigned AWS S3 URL (amplify-gursha-dev-121835-deployment.s3.amazonaws.com) using a hardcoded AWSAccessKeyId (), writes it to /tmp/.smh, decompresses to /tmp/.smi, and executes it. When root or passwordless sudo is available, it launches sh /tmp/.smi agent with elevated privileges to install a persistent agent (cron plus relay/tor) under stealth system-component process names. Without root, it extracts an embedded base64/tar XMRig binary, writes a mining configuration to ~/.sysmond.json pointing at the pool networkservicesupp.flashhub.net:8443 with a hardcoded wallet, copies the miner to ~/.local/lib//, and launches it via nohup. The package is published under a WildDuck email-client identity that does not correspond to the behavior shipped in the install script.

Source: ghsa-malware (02f525da4c4c8ee5f075a0331435ead2dd17b0ce972b32506ec7dafbf358867b)

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": [
        {
            "id": "IN-MAL-2026-021560",
            "import_time": "2026-10-21T22:41:19.995896222Z",
            "modified_time": "2026-10-21T22:21:01Z",
            "sha256": "a4524dc6ef26909f4ddfaf83eae1ec13495a5b2aef57375c0a8d8ad4c0609637",
            "source": "amazon-inspector",
            "versions": [
                "2.3.102"
            ]
        },
        {
            "id": "GHSA-5ff7-5w72-hm63",
            "import_time": "2026-10-22T16:30:25.082781768Z",
            "modified_time": "2026-10-22T15:42:38Z",
            "sha256": "02f525da4c4c8ee5f075a0331435ead2dd17b0ce972b32506ec7dafbf358867b",
            "source": "ghsa-malware",
            "versions": [
                "2.3.102"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @sudobility/wildduck_client

Package

Name
@sudobility/wildduck_client
View open source insights on deps.dev
Purl
pkg:npm/%40sudobility/wildduck_client

Affected ranges

Affected versions

2.*
2.3.102

Database specific

cwes 
[
    {
        "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.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "scripts/miner.sh",
            "sha256": "50df05975352cfa4558892d0a9ab493744c8ddd40948efa6755bb11dc5050118",
            "tlsh": "2371b7a5e4644b3471ac667d369e72815d92443f06213a61f0efef30ab2d46e20a81b7"
        }
    ],
    "package_integrity": [
        {
            "filename": "wildduck_client-2.3.102.tgz",
            "hashes": {
                "sha1": "5439d124d9c5c1419c84e2ad7ef0ae92f6b07c7a",
                "sha512_sri": "sha512-0vCnfS1b7IbXUr+CSeeIsf+QF/gZA7a+9EtJWm3Y/Q6WGmv47TTkaRr9G79CizcermIWrOWdIOcsf5I0X4ar2g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@sudobility/wildduck_client/MAL-2026-18130.json"