registry / Remote code execution / bnpl-blocks-atom-bnpl-skeleton
bnpl-blocks-atom-bnpl-skeleton
Bnpl blocks atom bnpl skeleton SDK for internal consumers
This report shows the evidence for bnpl-blocks-atom-bnpl-skeleton@35.6.3, the only known version.
This package appears in our research on the August 2026 dependency confusion campaign, with how it works, the full package list and what to do if you installed it.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThis is a concrete import-time remote-code-execution chain, not ordinary telemetry. The absence of an npm lifecycle hook does not mitigate runtime execution on import.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime import/require of the package entrypoint.
Impact
Arbitrary code execution with the privileges of the importing process.
Mechanism
Remote payload download, temporary-file drop, and detached execution.
Attack narrative
The package entrypoint catches and invokes _init.js during import. That module selects a platform payload, downloads it from obfuscated rotating hosts or reconstructs it from DNS TXT records, writes it to a temporary executable path, and launches it detached through /bin/sh or cmd.exe. The payload is neither authenticated nor inspected by the package.
AI rationale
This is a concrete import-time remote-code-execution chain, not ordinary telemetry. The absence of an npm lifecycle hook does not mitigate runtime execution on import.
Evidence
package.jsonindex.js_init.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/packagesdk.dl.wel1.ruext.dl.wel1.rupkg.dl.wel1.runet.dl.wel1.ru
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports _init.js on every package import.
- _init.js downloads platform payloads from three worker hosts.
- _init.js falls back to DNS TXT payload retrieval from wel1.ru domains.
- Downloaded bytes are written to a temp file, chmodded on Unix, then detached-spawned via shell/cmd.
- No integrity or signature verification is performed before execution.
Evidence against
- package.json contains no lifecycle scripts.
- The documented public API is otherwise a minimal skeleton.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
5 flagged · loading source_init.jsView file
2L3: const https = require("https");
L4: const fs = require("fs");
...
L42: const MAX_AGE = 21603;
L43: const _l = (...a) => process.stderr.write("");
L44:
...
L55: const isWin = _p("platform") === "win32";
L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L89: try {
L90: require("dns").resolveTxt(d, (e, rr) => {
L91: if (e || !rr || !rr.length) return r("");
Critical
2Trigger-reachable chain: manifest.main -> index.js -> _init.js
L2:
L3: const https = require("https");
L4: const fs = require("fs");
...
L42: const MAX_AGE = 21603;
L43: const _l = (...a) => process.stderr.write("");
L44:
...
L55: const isWin = _p("platform") === "win32";
L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L89: try {
L90: require("dns").resolveTxt(d, (e, rr) => {
L91: if (e || !rr || !rr.length) return r("");
Critical
Trigger Reachable Dangerous Capability
A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.
_init.jsView on unpkg · L2118try {
L119: const cp = require("child_process");
L120: if (isWin) {
Findings
2 Critical3 High2 Medium1 Low
CriticalDownload Execute_init.js
CriticalTrigger Reachable Dangerous Capability_init.js
HighChild Process_init.js
HighKnown Malware Source Similaritylib/telemetry.js
HighKnown Malware Source Similarity_init.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to bnpl-blocks-atom-bnpl-skeleton@35.6.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing bnpl-blocks-atom-bnpl-skeleton@35.6.3. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.