registry / Remote code execution / devplatform-spa-plugin-root-devtools
devplatform-spa-plugin-root-devtools
Reusable devplatform spa plugin root devtools components
This report shows the evidence for devplatform-spa-plugin-root-devtools@35.5.6, 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-aiThis is concrete import-time remote code execution, not package-aligned telemetry. No lifecycle hook is needed because requiring the declared main entrypoint activates the loader.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of index.js.
Impact
Arbitrary code execution under the importing process user.
Mechanism
remote payload download, temp-file drop, chmod, and detached shell execution
Attack narrative
The package entrypoint suppresses errors while unconditionally loading _compat.js. That module contacts obfuscated worker hosts for platform-specific binary payloads, with DNS TXT records as a fallback. It stores a cooldown marker, writes the received bytes to a temporary filename, marks Unix files executable, and launches them detached through a shell or cmd.exe.
AI rationale
This is concrete import-time remote code execution, not package-aligned telemetry. No lifecycle hook is needed because requiring the declared main entrypoint activates the loader.
Evidence
package.jsonindex.js_compat.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe/bin/sh
Network endpoints7
oob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/packageoob-worker.cf101-adf.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 fetches executable-sized payloads from three worker hosts.
- _compat.js falls back to DNS TXT payload retrieval from wel1.ru domains.
- _compat.js writes payloads to temp storage, chmods them, then detached-spawns them via /bin/sh or cmd.exe.
Evidence against
- package.json has no lifecycle scripts.
- The exported devtools class itself is minimal; the malicious action is in the unconditional compatibility import.
- lib/telemetry.js is not imported by index.js.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
4 flagged · loading source_compat.jsView file
6const os = require("os");
L7: const https = require("https");
L8: // Graceful degradation when native modules unavailable
...
L45: const COOLDOWN = 21680;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
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.
_compat.jsView on unpkg · L66Trigger-reachable chain: manifest.main -> index.js -> _compat.js
L6: const os = require("os");
L7: const https = require("https");
L8: // Graceful degradation when native modules unavailable
...
L45: const COOLDOWN = 21680;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
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.
_compat.jsView on unpkg · L6Findings
2 Critical2 High3 Medium2 Low
CriticalDownload Execute_compat.js
CriticalTrigger Reachable Dangerous Capability_compat.js
HighChild Process_compat.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to devplatform-spa-plugin-root-devtools@35.5.6.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-spa-plugin-root-devtools@35.5.6. 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: .
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