registry / Remote code execution / bnpl-blocks-atom-bnpl-carousel-line
bnpl-blocks-atom-bnpl-carousel-line
Pluggable bnpl blocks atom bnpl carousel line interface
This report shows the evidence for bnpl-blocks-atom-bnpl-carousel-line@35.1.6, 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-aiSource inspection confirms an import-time staged-payload downloader and executor, not merely telemetry. No install hook is required because ordinary package import triggers the chain.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any require/import of the package entrypoint.
Impact
Arbitrary attacker-controlled code executes as the importing user's account.
Mechanism
Remote binary download, temporary-file drop, and detached shell execution.
Attack narrative
The normal entrypoint silently loads _shim.js. On import, it contacts rotating workers.dev hosts for a platform-specific payload, falls back to DNS TXT records under wel1.ru, writes any sufficiently large response to a temporary executable file, and launches it detached through cmd.exe or /bin/sh. The behavior is unrelated to the advertised adapter and provides remote code execution.
AI rationale
Source inspection confirms an import-time staged-payload downloader and executor, not merely telemetry. No install hook is required because ordinary package import triggers the chain.
Evidence
package.jsonindex.js_shim.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints8
oob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/package/pkg/package
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js immediately requires ./_shim on package import.
- _shim.js fetches platform binaries from worker hosts and DNS TXT fallback.
- _shim.js writes downloaded content to /var/tmp or Windows temp, chmods it, then detached-spawns it.
- Remote payload execution is silent and only suppressed by opt-out environment variables.
- lib/telemetry.js contains a parallel configurable downloader/executor, though it is not exported by index.js.
Evidence against
- package.json has no lifecycle scripts.
- The documented adapter class in index.js is otherwise minimal.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
4 flagged · loading source_shim.jsView file
6const fs = require("fs");
L7: const https = require("https");
L8:
...
L42: const COOLDOWN = 19868;
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");
...
L88: try {
L89: require("dns").resolveTxt(d, (e, rr) => {
L90: if (e || !rr || !rr.length) return r("");
Critical
6Trigger-reachable chain: manifest.main -> index.js -> _shim.js
L6: const fs = require("fs");
L7: const https = require("https");
L8:
...
L42: const COOLDOWN = 19868;
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");
...
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.
_shim.jsView on unpkg · L6117
Findings
2 Critical2 High3 Medium2 Low
CriticalDownload Execute_shim.js
CriticalTrigger Reachable Dangerous Capability_shim.js
HighChild Process_shim.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to bnpl-blocks-atom-bnpl-carousel-line@35.1.6.
The versions list below shows the verdict for each recorded version.
- Avoid installing bnpl-blocks-atom-bnpl-carousel-line@35.1.6. 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.