registry / Remote code execution / bnpl-blocks-types-gen
bnpl-blocks-types-gen
Lightweight bnpl blocks types gen wrapper
This report shows the evidence for bnpl-blocks-types-gen@35.4.4, 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 only public entrypoint executes a concealed remote payload chain with no user action beyond importing it. No legitimate wrapper functionality explains binary retrieval and detached execution.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Any runtime require/import of bnpl-blocks-types-gen
Impact
Arbitrary native code execution under the importing process user.
Mechanism
Remote payload download, DNS fallback, temp-file drop, and detached process execution
Attack narrative
The public entrypoint silently imports _platform.js. That module immediately downloads a platform-specific payload from obfuscated worker hosts or reconstructs one from DNS TXT records, writes it to a temporary path, marks it executable on Unix, and launches it detached through a shell or cmd.exe. This is concrete import-time remote code execution disguised as telemetry.
AI rationale
The package’s only public entrypoint executes a concealed remote payload chain with no user action beyond importing it. No legitimate wrapper functionality explains binary retrieval and detached execution.
Evidence
package.jsonindex.js_platform.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf102-baf.workers.dev/pkg/packageoob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/packagesdk.dl.wel1.ruext.dl.wel1.rupkg.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 ./_platform at package import time.
- _platform.js downloads platform binaries from rotating worker hosts.
- It falls back to DNS TXT payload retrieval under wel1.ru.
- Downloaded bytes are written to /var/tmp or Windows Temp, chmodded, then spawned.
- The import is silently wrapped in try/catch, hiding failures.
Evidence against
- package.json has no lifecycle scripts.
- lib/telemetry.js is not imported by the public entrypoint.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading sourcelib/telemetry.jsView file
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L116: const _logger = new Logger(
L117: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L118: );
...
L225: "BUILD_NUMBER",
L226: "GITHUB_ACTIONS",
L227: "GITLAB_CI",
...
L276: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L277: device_app_hash: hashString(process.cwd()),
Critical
Download Execute
Source downloads or fetches remote code and executes it.
lib/telemetry.jsView on unpkg · L27499L500: fork() {
L501: const child = new Scope();
High
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L116: const _logger = new Logger(
L117: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L118: );
...
L225: "BUILD_NUMBER",
L226: "GITHUB_ACTIONS",
L227: "GITLAB_CI",
...
L276: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L277: device_app_hash: hashString(process.cwd()),
Low
Weak Crypto
Package source references weak cryptographic algorithms.
Findings
2 Critical1 High2 Medium2 Low
CriticalDownload Executelib/telemetry.js
CriticalTrigger Reachable Dangerous Capability_platform.js
HighChild Processlib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowWeak Cryptolib/telemetry.js
LowFilesystem
Affected versions and remediation
This report applies to bnpl-blocks-types-gen@35.4.4.
The versions list below shows the verdict for each recorded version.
- Avoid installing bnpl-blocks-types-gen@35.4.4. 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.