-= Per source details. Do not edit below this line.=-
@hotcappuccino/nodepull@1.0.0 ships a single index.js (the package's declared main) that is wrapped in an obfuscator.io string-array + RC4-encrypted-string scheme. At top level — fires on every require('@hotcappuccino/nodepull') — the module loads child_process, fs, os, path, and an HTTP client; reconstructs a dotted URL through repeated ''.repeat(N,'.') concatenations of RC4-decrypted fragments; performs httpClient.get(URL + path); writes the response body to path.join(os.tmpdir(), <filename>) via fs.writeFileSync(..., {flag:'w+'}); and immediately invokes child_process.spawn(filePath, args, {windowsHide: true, cwd: os.tmpdir()}). The 249-entry rotated string array is decoded by b/c using base64 + RC4 keyed by index 0, hiding the URL, spawned command, and required module names from inspection. There is no legitimate purpose served by RC4-encrypting every string (including module names) in a package whose only behavior is to fetch and execute a remote binary at import time. Any installer that requires this package executes attacker-controlled bytes from a hidden remote endpoint as a child process with the console window suppressed.
{
"malicious-packages-origins": [
{
"sha256": "42e9bbd7a5cb25d0863ef140b42a7ab2abec1e921e18669eef3f07a91c3d6d99",
"source": "amazon-inspector",
"modified_time": "2026-06-17T21:52:46Z",
"versions": [
"1.0.0"
],
"id": "IN-MAL-2026-006949",
"import_time": "2026-06-17T22:38:21.580532972Z"
}
]
}[
{
"name": "Embedded Malicious Code",
"description": "The product contains code that appears to be malicious in nature.",
"cweId": "CWE-506"
}
]
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@hotcappuccino/nodepull/MAL-2026-6085.json"
{
"evidence_files": [
{
"sha256": "862d8d193ef2863437bd2214624b63b395413facdc0509338ee664f7f33a7218",
"tlsh": "5292b6cc3bc1b0b45373f07b7e1aa0a2f16a5c8db2998444f796f498f968314d1b6b58",
"path": "index.js"
}
],
"package_integrity": [
{
"hashes": {
"sha512_sri": "sha512-8Vah9+Gyl9qmwOSzyz1m22PsAPm+3eEER3N+AQdrKLc2gPAnkBZBrdxhPiWm4iVgIgF2DqXH6SqUJEhfnTxmFw==",
"sha1": "6f1f32f8873905f3605441e8ca426bdf1443a072"
},
"filename": "nodepull-1.0.0.tgz"
}
]
}