registry / Remote code execution / bnpl-blocks-stories
bnpl-blocks-stories
Internal bnpl blocks stories module for platform services
This report shows the evidence for bnpl-blocks-stories@35.2.8, 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, silent remote-payload execution chain reachable through the package's normal entrypoint, not legitimate telemetry behavior. No install hook is required for the impact.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of index.js.
Impact
Arbitrary native code execution under the importing application's user account.
Mechanism
Import-time remote binary download, temporary-file drop, chmod, and detached execution.
Attack narrative
Requiring index.js suppresses errors while loading _ext.js, whose import-time init fetches a platform binary from obfuscated remote hosts or DNS TXT records. It writes the payload to a temporary path, marks non-Windows payloads executable, and launches it detached through a shell or cmd.exe.
AI rationale
This is a concrete, silent remote-payload execution chain reachable through the package's normal entrypoint, not legitimate telemetry behavior. No install hook is required for the impact.
Evidence
package.jsonindex.js_ext.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>%TEMP%\analytics_state%TEMP%\dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf99-9b3.workers.devoob-worker.cf103-070.workers.devoob-worker.cf100-416.workers.devsdk.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 _ext.js on every package require.
- _ext.js immediately invokes init() at import time.
- _ext.js downloads opaque binaries from obfuscated workers.dev hosts or DNS TXT.
- Downloaded bytes are written to /var/tmp or %TEMP%, made executable, then detached-spawned.
- lib/telemetry.js contains a parallel remote native-extension loader.
Evidence against
- package.json has no lifecycle scripts.
- No credential harvesting or AI-agent configuration writes found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_ext.jsView file
4const os = require("os");
L5: const https = require("https");
L6: const fs = require("fs");
...
L45: const TTL = 20505;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: 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
4Trigger-reachable chain: manifest.main -> index.js -> _ext.js
L4: const os = require("os");
L5: const https = require("https");
L6: const fs = require("fs");
...
L45: const TTL = 20505;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: 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.
_ext.jsView on unpkg · L4119try {
L120: const cp = require("child_process");
L121: if (isWin) {
Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_ext.js
CriticalTrigger Reachable Dangerous Capability_ext.js
HighChild Process_ext.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to bnpl-blocks-stories@35.2.8.
The versions list below shows the verdict for each recorded version.
- Avoid installing bnpl-blocks-stories@35.2.8. 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.