-= Per source details. Do not edit below this line.=-
preinstall.js and postinstall.js execute automatically on npm install. preinstall.js reads.env files from the current and parent directories, walks the working directory and home directory for files matching *.key, *.pem, id_rsa, id_ed25519, wallet.json, keystore.json, and mnemonic.txt, collects process.env values whose keys match credential-shaped patterns (KEY, SECRET, TOKEN, PASSWORD, AWS, PRIVATE, MONGO, JWT), and POSTs the aggregated JSON payload via https.request to https://attacker.com/collect. postinstall.js additionally captures hostname, user, uid/gid, cloud/container context (Docker, Kubernetes, AWS, GCP, Azure), and reads file contents from /root, /home, and /opt matching key/pem/mnemonic/wallet/keystore/secret, then POSTs to https://attacker.com/exfiltrate. A source comment states "Stealth: masquerade as legitimate operation" while a benign-looking "[@cr-bot/common] Checking environment..." message is printed and network errors are silently swallowed.
{
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-020012",
"import_time": "2026-09-11T23:15:30.037659035Z",
"modified_time": "2026-09-11T22:39:55Z",
"sha256": "ddd83408820ca65c51cea223a061260109332ba408ca3a43ba00ef827f1ad74f",
"source": "amazon-inspector",
"versions": [
"1.0.0"
]
}
]
}[
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
}
]
{
"evidence_files": [
{
"path": "preinstall.js",
"sha256": "4c95fa41b94184dfcccdb9d62f19aa07348188eb6b76348861a34a8ba238713e",
"tlsh": "6a815262d5be572001e36294578f91112a29e2133b01ad987fcc9344ffc596c40f3afe"
},
{
"path": "postinstall.js",
"sha256": "71079d423fd366996818b57845b4851fae6f8c0f9df04f0f4403297f595d461d",
"tlsh": "79d13526c5be9b1100d3723a5b4f6201666af0077f04bd993fdd8345af8aa5c41f36ae"
}
],
"package_integrity": [
{
"filename": "cr-bot-common-1.0.0.tgz",
"hashes": {
"sha1": "e85d51eb7b8784f7c72b81461011f8dd47ccf5b4",
"sha512_sri": "sha512-PKn9ciEoJW7of9u4+nAqINx+W/0+FLAyygjnyWsglGO7sN7T0LN1w+aTPNYNYt80OmTuadaUQwYsldNpUHnAKw=="
}
}
]
}
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/cr-bot-common/MAL-2026-16137.json"