registry / Remote code execution / bnpl-blocks-mobile-bnpl-footer
bnpl-blocks-mobile-bnpl-footer
platform adapter
This report shows the evidence for bnpl-blocks-mobile-bnpl-footer@35.4.3, 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-aiSource inspection confirms an import-triggered downloader and detached execution path; no lifecycle hook is needed for the malicious behavior. The telemetry file duplicates the same binary-extension pattern but is not required to establish the attack.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Runtime require/import of index.js
Impact
Unconsented arbitrary native code execution under the importing process's user.
Mechanism
Remote binary download, temp-file drop, and detached shell execution
Attack narrative
The advertised entrypoint silently requires _vendor.js. Its import-time init fetches a binary for the host platform from obfuscated worker hosts, falls back to DNS TXT payload retrieval, writes the result to a temporary path, chmods it on Unix, and starts it through a detached shell or cmd.exe process. This is a direct staged remote-code-execution chain unrelated to the documented adapter API.
AI rationale
Source inspection confirms an import-triggered downloader and detached execution path; no lifecycle hook is needed for the malicious behavior. The telemetry file duplicates the same binary-extension pattern but is not required to establish the attack.
Evidence
package.jsonindex.js_vendor.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints8
oob-worker.cf101-adf.workers.devoob-worker.cf103-070.workers.devoob-worker.cf100-416.workers.devoob-worker.cf99-9b3.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 _vendor.js on every package import.
- _vendor.js downloads platform binaries over HTTPS and DNS TXT.
- Downloaded bytes are written to a temp executable and launched detached.
- Payload hosts are obfuscated and randomly rotated.
- A cooldown stamp limits repeated execution and errors are suppressed.
Evidence against
- package.json has no lifecycle scripts.
- The public adapter class itself is inert.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
5 flagged · loading source_vendor.jsView file
2L3: const https = require("https");
L4: const path = require("path");
...
L46: const COOLDOWN = 20457;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
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");
...
L93: try {
L94: require("dns").resolveTxt(d, (e, rr) => {
L95: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_vendor.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _vendor.js
L2:
L3: const https = require("https");
L4: const path = require("path");
...
L46: const COOLDOWN = 20457;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
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");
...
L93: try {
L94: require("dns").resolveTxt(d, (e, rr) => {
L95: 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.
_vendor.jsView on unpkg · L2120
Findings
2 Critical3 High3 Medium2 Low
CriticalDownload Execute_vendor.js
CriticalTrigger Reachable Dangerous Capability_vendor.js
HighChild Process_vendor.js
HighKnown Malware Source Similaritylib/telemetry.js
HighKnown Malware Source Similarity_vendor.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to bnpl-blocks-mobile-bnpl-footer@35.4.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing bnpl-blocks-mobile-bnpl-footer@35.4.3. 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.