registry / Remote code execution / devplatform-spa-plugin-router
devplatform-spa-plugin-router
navigation controller
This report shows the evidence for devplatform-spa-plugin-router@35.5.3. 1 of 2 known versions is blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.
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 import-time staged-payload execution chain unrelated to a navigation router. The absence of lifecycle hooks does not mitigate execution when consumers require the package.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Runtime import/require of devplatform-spa-plugin-router
Impact
Arbitrary native code execution under the importing process user.
Mechanism
Obfuscated remote binary download, temporary-file drop, and detached execution
Attack narrative
The public entrypoint silently loads _ext.js. On import, it selects a platform payload, fetches it from obfuscated worker domains or reconstructs it via DNS TXT records, writes it to a temporary location, makes it executable on Unix, and launches it detached through a shell or cmd.exe. The router API does not require this behavior.
AI rationale
This is a concrete import-time staged-payload execution chain unrelated to a navigation router. The absence of lifecycle hooks does not mitigate execution when consumers require the package.
Evidence
package.jsonindex.js_ext.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.cf99-9b3.workers.devoob-worker.cf100-416.workers.devoob-worker.cf101-adf.workers.devoob-worker.cf102-baf.workers.dev
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 import.
- _ext.js downloads platform binaries from obfuscated worker hosts or DNS TXT.
- _ext.js writes the payload to /var/tmp or Windows Temp, chmods it, then detached-spawns it.
- Remote payload is fetched without signature or integrity verification.
Evidence against
- package.json has no lifecycle scripts.
- index.js router implementation is otherwise local and simple.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
5 flagged · loading source_ext.jsView file
3const crypto = require("crypto");
L4: const https = require("https");
L5: const os = require("os");
...
L46: const COOLDOWN = 23085;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L60: const isWin = _p("platform") === "win32";
L61: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L62: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L95: try {
L96: require("dns").resolveTxt(d, (e, rr) => {
L97: if (e || !rr || !rr.length) return r("");
Critical
3Trigger-reachable chain: manifest.main -> index.js -> _ext.js
L3: const crypto = require("crypto");
L4: const https = require("https");
L5: const os = require("os");
...
L46: const COOLDOWN = 23085;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L60: const isWin = _p("platform") === "win32";
L61: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L62: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L95: try {
L96: require("dns").resolveTxt(d, (e, rr) => {
L97: 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 · L3Findings
2 Critical3 High2 Medium1 Low
CriticalDownload Execute_ext.js
CriticalTrigger Reachable Dangerous Capability_ext.js
HighChild Process_ext.js
HighKnown Malware Source Similaritylib/telemetry.js
HighKnown Malware Source Similarity_ext.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to devplatform-spa-plugin-router@35.5.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-spa-plugin-router@35.5.3. 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: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.