MAL-2026-17719

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@brick-v2/tour/MAL-2026-17719.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17719
Published
2026-10-09T00:00:00Z
Modified
2026-10-12T05:30:05Z
Summary
Malicious code in @brick-v2/tour (npm)
Details

@brick-v2/tour is a dependency confusion package published to npm on 2026-10-09 by the account s4yhii__, targeting the internal @galicia-toolkit-* / @brick-v2 package namespaces with inflated versions (e.g. 999.0.x). Early versions resolve ..dc.oob.s4yhii.com via DNS to beacon the victim's hostname. Later versions run node index.js from a preinstall hook, which loads a bundled native addon (prebuilds/-/metrics.node, Linux and Windows builds). The addon forks a detached process that collects hostname, username, OS/arch, cwd and the full values of CI/cloud secrets from environment variables (NPM_TOKEN, NODE_AUTH_TOKEN, GITHUB_TOKEN, ACTIONS_RUNTIME_TOKEN, ACTIONS_ID_TOKEN_REQUEST_TOKEN, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, SYSTEM_ACCESSTOKEN, AZURE_DEVOPS_EXT_PAT and others) and sends them as JSON via HTTP POST /native to oob.s4yhii.com:9999.

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

Source: amazon-inspector (aabec40c085d56f59b4ca696eefe600f450a03284df0d77f562d861fed091bee)

The package presents itself as an Angular-style module exposing forRoot/createLogger stubs and a version field, but these exports are no-ops. The real behavior is in a bundled prebuilt native addon at prebuilds/linux-x64/metrics.node and prebuilds/win32-x64/metrics.node. package.json declares "preinstall": "node index.js || true", and index.js loads the platform-specific metrics.node via require(path.join(__dirname,'prebuilds', os.platform()+'-'+os.arch(),'metrics.node')), so the native addon is executed automatically on npm install and again on require(). The native binary reads a broad set of credential-grade environment variables and host identifiers — AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, GITHUB_TOKEN, ACTIONS_RUNTIME_TOKEN, ACTIONS_ID_TOKEN_REQUEST_TOKEN, SYSTEM_ACCESSTOKEN, NPM_TOKEN, NODE_AUTH_TOKEN, AZURE_DEVOPS_EXT_PAT, plus hostname, username, cwd, OS and arch — and POSTs them as JSON (template {"src":"native","pkg":"%s",...}) to oob.s4yhii.com at path /native over HTTP/1.0. The || true in the preinstall hook suppresses errors so the install appears to succeed silently. The Angular-shaped JS wrapper, the generic tour package name, and the metrics.node filename function as a cover story disguising a credential stealer.

Database specific 
{
    "iocs": {
        "domains": [
            "oob.s4yhii.com"
        ],
        "files": [
            {
                "note": "Loader: DNS hostname beacon to *.dc.oob.s4yhii.com, or loads the native exfiltration addon (run via preinstall).",
                "paths": [
                    "index.js"
                ],
                "source": "PACKAGE_ARCHIVE"
            },
            {
                "note": "Native addon that exfiltrates host info and CI/cloud secret env vars to oob.s4yhii.com:9999.",
                "paths": [
                    "prebuilds/linux-x64/metrics.node",
                    "prebuilds/win32-x64/metrics.node"
                ],
                "source": "PACKAGE_ARCHIVE"
            }
        ],
        "urls": [
            "http://oob.s4yhii.com:9999/native"
        ]
    },
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-021311",
            "import_time": "2026-10-09T13:46:18.983865466Z",
            "modified_time": "2026-10-09T13:39:20Z",
            "sha256": "780830761df5ae1144c409b83bf8bf645927b5ea3dc19173e24c94025c00660b",
            "source": "amazon-inspector",
            "versions": [
                "999.0.1"
            ]
        },
        {
            "id": "IN-MAL-2026-021288",
            "import_time": "2026-10-09T13:46:17.100944565Z",
            "modified_time": "2026-10-09T13:35:50Z",
            "sha256": "aabec40c085d56f59b4ca696eefe600f450a03284df0d77f562d861fed091bee",
            "source": "amazon-inspector",
            "versions": [
                "999.0.3"
            ]
        },
        {
            "id": "IN-MAL-2026-021294",
            "import_time": "2026-10-09T13:46:17.591352095Z",
            "modified_time": "2026-10-09T13:36:46Z",
            "sha256": "f0509f4c0900d40265940d62fa6122c69940a8d101ddb73ed572ea8b1ef6b150",
            "source": "amazon-inspector",
            "versions": [
                "999.0.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @brick-v2/tour

Package

Name
@brick-v2/tour
View open source insights on deps.dev
Purl
pkg:npm/%40brick-v2/tour

Affected ranges

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

Affected versions

999.*
999.0.1
999.0.2
999.0.3

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"
    },
    {
        "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": "prebuilds/linux-x64/metrics.node",
            "sha256": "3f8833d49735dfdfe9bdef504bbb53ff069cb48a3953d9af08659d1c5560cf26",
            "tlsh": "cf72775bb361ce3bc4dc4334055b5a70b1b29870e77353231b11a1bb3d927885ebae9a"
        },
        {
            "path": "package.json",
            "sha256": "81743667bd97d73aeeb0359560acd5317625c412199771ecc65ebad6519c37ab",
            "tlsh": "70c080345531241304c59be45c63490606d70c7f4005b0040b57542443dd63728fd33d"
        }
    ],
    "package_integrity": [
        {
            "filename": "tour-999.0.1.tgz",
            "hashes": {
                "sha1": "04a443031d1ae1262211dd016e28c025b01da590",
                "sha512_sri": "sha512-x71YWX2LxfMIoj4MBVOfQ9GVtyNfEtzDscElWU1w0+agY7ixowgbzR793Q8lWBet8OIUiENGRrCuf+7Zhaa1ag=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@brick-v2/tour/MAL-2026-17719.json"