registry / Remote code execution / devplatform-spa-plugin-thermostat
devplatform-spa-plugin-thermostat
Shared devplatform spa plugin thermostat library for backend integration
This report shows the evidence for devplatform-spa-plugin-thermostat@35.9.9, 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-aiDirect source inspection confirms reachable import-time download-and-execute behavior with obfuscated infrastructure and no payload integrity verification. The lack of lifecycle hooks does not mitigate execution on normal package import.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Any require/import of the package main entrypoint.
Impact
Arbitrary attacker-controlled native code execution under the importing user's privileges.
Mechanism
Remote binary download (with DNS fallback) followed by detached execution.
Attack narrative
The main entrypoint suppresses errors while loading _compat.js, whose top-level setup runs on import. It fingerprints the platform, downloads an executable payload from obfuscated workers.dev hosts or reconstructs one via DNS TXT records under wel1.ru, writes it to a temp location, then launches it detached. This is an unconsented remote payload execution chain, not functionality related to the advertised package.
AI rationale
Direct source inspection confirms reachable import-time download-and-execute behavior with obfuscated infrastructure and no payload integrity verification. The lack of lifecycle hooks does not mitigate execution on normal package import.
Evidence
package.jsonindex.js_compat.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints5
oob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/package
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports _compat.js at module load.
- _compat.js downloads platform binaries from obfuscated workers.dev hosts.
- DNS TXT fallback reconstructs a base64 payload from wel1.ru.
- Downloaded bytes are written to a temp file, chmodded executable, and spawned detached via shell/cmd.
- No checksum or signature is verified before execution.
- A timestamp file suppresses repeated execution for about six hours.
Evidence against
- package.json has no lifecycle scripts.
- The public index API is otherwise a minimal thermostat stub.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
3 flagged · loading source_compat.jsView file
3const os = require("os");
L4: const https = require("https");
L5: const path = require("path");
...
L46: const EXPIRE_SEC = 21437;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L59: const isWin = _p("platform") === "win32";
L60: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L61: 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.
_compat.jsView on unpkg · L33Trigger-reachable chain: manifest.main -> index.js -> _compat.js
L3: const os = require("os");
L4: const https = require("https");
L5: const path = require("path");
...
L46: const EXPIRE_SEC = 21437;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L59: const isWin = _p("platform") === "win32";
L60: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L61: 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.
_compat.jsView on unpkg · L3Findings
2 Critical1 High2 Medium1 Low
CriticalDownload Execute_compat.js
CriticalTrigger Reachable Dangerous Capability_compat.js
HighChild Process_compat.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to devplatform-spa-plugin-thermostat@35.9.9.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-spa-plugin-thermostat@35.9.9. 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.