-= Per source details. Do not edit below this line.=-
The package's runtime connects to a hardcoded WebSocket relay (default wss://msclaude.ai) and dispatches messages received from that relay directly into a locally spawned PTY. terminal.js spawns the user's default shell (or powershell.exe on Windows) via node-pty and exposes a write() method that pipes network-received bytes straight into the shell (ptyProcess?.write(data)); connection.js routes terminal_open / terminal_input events from the WebSocket's on('message') handler to that PTY. This grants whoever controls the relay endpoint, or anyone holding a session URL, interactive command execution on the host running the agent, including via a ping/GET/POST/http.request command path in dist/local-control-client.js, dist/local-control-http.js, dist/tunnel.js, dist/upgrade-operations.js, and worker/worker.cjs. Publisher provenance for the relay is unclear: package.json homepage points at github.com/yilee/agentlink, the README's Related link points at a different GitHub owner (kailunshi_microsoft/AgenticWorker), and the branding plus hardcoded relay domain is msclaude.ai, which is not tied to a verifiable publisher identity. In addition, emergency-upgrade.js fetches a release manifest from https://msclaude.ai/files/agent/latest.json (and beta.json) and downloads a replacement tarball from the same origin, verifying only hash/size/name against a manifest served by that same origin — so control of msclaude.ai also grants signed-by-manifest package replacement.
{
"malicious-packages-origins": [
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{
"id": "IN-MAL-2026-016050",
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{
"id": "IN-MAL-2026-016431",
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{
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},
{
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{
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},
{
"id": "IN-MAL-2026-016437",
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},
{
"id": "IN-MAL-2026-016442",
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},
{
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"id": "IN-MAL-2026-016423",
"sha256": "dd3fefbf53f93e3bbe09b9f03c6f7c73e259775c48aa3ebd8ead653afc411faf",
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{
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"id": "IN-MAL-2026-016429",
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"id": "IN-MAL-2026-016428",
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{
"id": "IN-MAL-2026-016448",
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{
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{
"id": "IN-MAL-2026-016432",
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},
{
"id": "IN-MAL-2026-016430",
"import_time": "2026-08-06T14:19:48.761110006Z",
"sha256": "90f7f274748137bc2bba20582fcba672d868fdf172de49c93f43028610b0a43a",
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],
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},
{
"id": "IN-MAL-2026-016412",
"import_time": "2026-08-06T14:19:47.775743458Z",
"sha256": "a54ab78ab4051000c97688fa8ba82c80a76dd421c40b80ef9dfec2932d91a360",
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},
{
"id": "IN-MAL-2026-016417",
"import_time": "2026-08-06T14:19:48.126428451Z",
"sha256": "a65773f09ae0629d99d6e77e6b3162a0ecc032d49f4d1f1e80accd654c1a935a",
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},
{
"id": "IN-MAL-2026-016413",
"import_time": "2026-08-06T14:19:47.813091475Z",
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},
{
"id": "IN-MAL-2026-016435",
"import_time": "2026-08-06T14:19:49.005843416Z",
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},
{
"id": "IN-MAL-2026-016419",
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},
{
"id": "IN-MAL-2026-016427",
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{
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},
{
"id": "IN-MAL-2026-016410",
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{
"id": "IN-MAL-2026-016416",
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},
{
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"id": "IN-MAL-2026-016434",
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},
{
"id": "IN-MAL-2026-016420",
"import_time": "2026-08-06T14:19:48.26263498Z",
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},
{
"id": "IN-MAL-2026-016421",
"import_time": "2026-08-06T14:19:48.305443664Z",
"sha256": "a7018626958a160ab35a17b31ddd130ba9b6046b870f115b0fa83622b66bd912",
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},
{
"import_time": "2026-08-06T14:19:49.744673548Z",
"id": "IN-MAL-2026-016445",
"sha256": "0599cf46b13d8e49970defa6efcab5c3c5c443b69e23410c5b6ea39f9de9e771",
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},
{
"id": "IN-MAL-2026-016441",
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},
{
"id": "IN-MAL-2026-016438",
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{
"id": "IN-MAL-2026-016433",
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{
"id": "IN-MAL-2026-016444",
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{
"id": "IN-MAL-2026-016447",
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{
"id": "IN-MAL-2026-016414",
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{
"id": "IN-MAL-2026-016418",
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]
}[
{
"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.",
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},
{
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code",
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},
{
"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",
"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",
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},
{
"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",
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},
{
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code",
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},
{
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code",
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},
{
"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",
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},
{
"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",
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},
{
"description": "The product contains code that appears to be malicious in nature.",
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{
"description": "The product contains code that appears to be malicious in nature.",
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},
{
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code",
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},
{
"description": "The product contains code that appears to be malicious in nature.",
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},
{
"description": "The product contains code that appears to be malicious in nature.",
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{
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{
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{
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{
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{
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{
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{
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{
"description": "The product contains code that appears to be malicious in nature.",
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{
"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",
"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"
}
]
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@agent-link/agent/MAL-2026-10705.json"
{
"evidence_files": [
{
"path": "dist/terminal.js",
"tlsh": "139121a95dff193446b73439624f210fa971d0232309cd21ba5d8f625fd627c61d07ae",
"sha256": "fd7e7a2a092d230d0c94be7c634c15a5dc492705b9dff4b8c1d1d559a9cd4fe5"
}
],
"package_integrity": [
{
"filename": "agent-0.1.269.tgz",
"hashes": {
"sha1": "a78cdac8b0c5891e32cb2a38903103de1b705d0d",
"sha512_sri": "sha512-8iSt8k2xJB04+OAF2O0s9MfrWLcOfhmjGI0uYnMX4Q6qO8FsZ8jPM87GD9s88DiQZeYNPwPa5uSBGfPDGqrfuA=="
}
}
]
}