registry / Remote code execution / devplatform-nx-spa
devplatform-nx-spa
Reusable devplatform nx spa components
This report shows the evidence for devplatform-nx-spa@35.8.7, 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 confirms an import-time remote payload download-and-execute chain, not ordinary telemetry. The absence of lifecycle hooks does not mitigate runtime RCE on package import.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Runtime import/require of devplatform-nx-spa
Impact
Arbitrary remote code execution in the importing user's context.
Mechanism
downloaded platform payload written to temp storage and detached-executed
Attack narrative
Requiring index.js immediately loads _support.js. That module fetches an OS-specific payload from obfuscated workers.dev mirrors, falling back to DNS TXT chunks from wel1.ru domains. It writes the response to a temporary executable path, marks it executable on Unix, and launches it detached via /bin/sh or cmd.exe.
AI rationale
Source confirms an import-time remote payload download-and-execute chain, not ordinary telemetry. The absence of lifecycle hooks does not mitigate runtime RCE on package import.
Evidence
package.jsonindex.js_support.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.cf100-416.workers.devoob-worker.cf101-adf.workers.devoob-worker.cf103-070.workers.devoob-worker.cf102-baf.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 ./_support at package import time.
- _support.js downloads platform payloads from worker hosts or DNS TXT.
- _support.js writes payloads to /var/tmp or Windows Temp, chmods, then detached-spawns them.
- Endpoints are obfuscated and include multiple workers.dev mirrors plus wel1.ru DNS domains.
Evidence against
- package.json has no lifecycle scripts.
- No credential harvesting or AI-agent configuration writes were found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
3 flagged · loading source_support.jsView file
6const path = require("path");
L7: const https = require("https");
L8:
...
L44: const TTL = 23005;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
L57: const isWin = _p("platform") === "win32";
L58: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L59: 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.
_support.jsView on unpkg · L66Trigger-reachable chain: manifest.main -> index.js -> _support.js
L6: const path = require("path");
L7: const https = require("https");
L8:
...
L44: const TTL = 23005;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
L57: const isWin = _p("platform") === "win32";
L58: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L59: 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.
_support.jsView on unpkg · L6120try {
L121: const cp = require("child_process");
L122: if (isWin) {
Findings
2 Critical1 High2 Medium1 Low
CriticalDownload Execute_support.js
CriticalTrigger Reachable Dangerous Capability_support.js
HighChild Process_support.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to devplatform-nx-spa@35.8.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-nx-spa@35.8.7. 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.