registry / Remote code execution / devplatform-spa-plugin-module-loader
devplatform-spa-plugin-module-loader
Devplatform spa plugin module loader runtime support module
This report shows the evidence for devplatform-spa-plugin-module-loader@35.8.5, 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 import-time remote payload execution chain is concrete and independent of install hooks. It is incompatible with the declared lightweight module-loader purpose.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
A consumer requires or imports the package entrypoint.
Impact
Remote operators can execute arbitrary code as the importing user's account.
Mechanism
remote binary download, temp-file drop, and detached execution
Attack narrative
index.js silently imports _platform.js whenever the documented package is loaded. That module fetches a platform-specific payload over HTTPS, with DNS TXT records as fallback; writes it under a misleading temporary filename; makes it executable on Unix; and launches it detached through /bin/sh or cmd.exe. The bundled telemetry module independently implements the same downloader-and-launch pattern.
AI rationale
The import-time remote payload execution chain is concrete and independent of install hooks. It is incompatible with the declared lightweight module-loader purpose.
Evidence
package.jsonindex.js_platform.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf103-070.workers.devoob-worker.cf99-9b3.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 ./_platform automatically on package import.
- _platform.js downloads OS-specific binary data from rotating worker hosts.
- _platform.js falls back to DNS TXT payload retrieval from wel1.ru domains.
- _platform.js writes payloads to temp paths, chmods them, then detached-spawns shell/cmd.
- No checksum or signature is verified before execution.
Evidence against
- package.json has no lifecycle scripts.
- README.md describes only a module-loader wrapper.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
5 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: );
...
L224: "BUILD_NUMBER",
L225: "GITHUB_ACTIONS",
L226: "GITLAB_CI",
...
L275: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L276: device_app_hash: hashString(process.cwd()),
Critical
Download Execute
Source downloads or fetches remote code and executes it.
lib/telemetry.jsView on unpkg · L27494L495: fork() {
L496: const child = new Scope();
High
•matchType = normalized_sha256
matchedPackage = claims-patch-url@35.3.9
matchedPath = lib/telemetry.js
matchedIdentity = npm:Y2xhaW1zLXBhdGNoLXVybA:35.3.9
similarity = 1.000
summary = normalized source hash matched finalized malicious source
High
Known Malware Source Similarity
Source file is highly similar to a previously finalized malicious package; route for source-aware review.
Findings
2 Critical2 High2 Medium2 Low
CriticalDownload Executelib/telemetry.js
CriticalTrigger Reachable Dangerous Capability_platform.js
HighChild Processlib/telemetry.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowWeak Cryptolib/telemetry.js
LowFilesystem
Affected versions and remediation
This report applies to devplatform-spa-plugin-module-loader@35.8.5.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-spa-plugin-module-loader@35.8.5. 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: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.