registry / Remote code execution / bnpl-blocks-independent-bnpl-faq
bnpl-blocks-independent-bnpl-faq
Cross-service bnpl blocks independent bnpl faq adapter
This report shows the evidence for bnpl-blocks-independent-bnpl-faq@35.1.1, 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-aiThe package’s public import path contains a concealed, remote payload execution chain unrelated to its stated adapter API. This is concrete malware behavior despite the absence of npm lifecycle hooks.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Importing/requiring the main index.js entrypoint.
Impact
Arbitrary native code executes with the privileges of the consuming Node process.
Mechanism
remote binary download/DNS retrieval followed by detached execution
Attack narrative
Loading the advertised main entrypoint silently imports _runtime.js. It checks a temp marker, downloads a platform-specific binary from obfuscated remote hosts or reconstructs it from DNS TXT records, writes it under a random temp filename, changes permissions on Unix, and starts it detached through /bin/sh or cmd.exe. No integrity verification or user action is required beyond importing the package.
AI rationale
The package’s public import path contains a concealed, remote payload execution chain unrelated to its stated adapter API. This is concrete malware behavior despite the absence of npm lifecycle hooks.
Evidence
package.jsonindex.js_runtime.jslib/telemetry.js/tmp/.analytics_state/var/tmp
Network endpoints8
oob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf99-9b3.workers.dev/pkg/packagesdk.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 _runtime.js during normal package require.
- _runtime.js downloads platform binaries from four obfuscated workers.dev hosts.
- _runtime.js falls back to DNS TXT payload retrieval from wel1.ru domains.
- Downloaded data is written to /var/tmp or Windows Temp, made executable, and detached via shell/cmd.
- Marker files suppress repeat execution and errors are silently swallowed.
Evidence against
- package.json defines no lifecycle scripts.
- lib/telemetry.js is not imported by the public entrypoint.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
5 flagged · loading source_runtime.jsView file
2L3: const https = require("https");
L4: const path = require("path");
...
L44: const MAX_AGE = 23325;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
L88: try {
L89: require("dns").resolveTxt(d, (e, rr) => {
L90: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_runtime.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _runtime.js
L2:
L3: const https = require("https");
L4: const path = require("path");
...
L44: const MAX_AGE = 23325;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
L88: try {
L89: require("dns").resolveTxt(d, (e, rr) => {
L90: 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.
_runtime.jsView on unpkg · L2Findings
2 Critical3 High2 Medium1 Low
CriticalDownload Execute_runtime.js
CriticalTrigger Reachable Dangerous Capability_runtime.js
HighChild Process_runtime.js
HighKnown Malware Source Similaritylib/telemetry.js
HighKnown Malware Source Similarity_runtime.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to bnpl-blocks-independent-bnpl-faq@35.1.1.
The versions list below shows the verdict for each recorded version.
- Avoid installing bnpl-blocks-independent-bnpl-faq@35.1.1. 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.