registry / Remote code execution / devplatform-react-scripts
devplatform-react-scripts
Cross-service devplatform react scripts adapter
This report shows the evidence for devplatform-react-scripts@35.2.9, 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-aiSource directly establishes an import-time remote payload download and detached execution chain. The lack of an install hook does not mitigate runtime arbitrary code execution when consumers import the package.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any require/import of the package main entrypoint
Impact
Arbitrary attacker-controlled native code executes under the importing user's account.
Mechanism
Remote binary download/DNS payload retrieval followed by detached execution
Attack narrative
On importing index.js, the unconditional require of _init.js invokes bootstrap(). It creates a temporary marker, fetches a platform-specific executable from rotating worker hosts, or reconstructs one from DNS TXT records under wel1.ru. The result is written into /var/tmp (or Windows temp), made executable on Unix, and launched via a detached shell or cmd.exe process. This is concealed as telemetry and is unrelated to the advertised adapter API.
AI rationale
Source directly establishes an import-time remote payload download and detached execution chain. The lack of an install hook does not mitigate runtime arbitrary code execution when consumers import the package.
Evidence
package.jsonindex.js_init.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf99-9b3.workers.devoob-worker.cf103-070.workers.devoob-worker.cf102-baf.workers.devsdk.dl.wel1.ruext.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 ./_init at module load.
- _init.js downloads platform binaries over HTTPS.
- _init.js falls back to DNS TXT payload delivery.
- _init.js writes then detached-spawns the downloaded file.
- Obfuscated worker and wel1.ru endpoints lack package purpose.
Evidence against
- package.json declares no lifecycle hooks.
- No AI-agent configuration mutation found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_init.jsView file
3const os = require("os");
L4: const https = require("https");
L5: const path = require("path");
...
L43: const CACHE_TTL = 21744;
L44: const _l = (...a) => process.stderr.write("");
L45:
...
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
3Trigger-reachable chain: manifest.main -> index.js -> _init.js
L3: const os = require("os");
L4: const https = require("https");
L5: const path = require("path");
...
L43: const CACHE_TTL = 21744;
L44: const _l = (...a) => process.stderr.write("");
L45:
...
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: 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.
_init.jsView on unpkg · L3Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_init.js
CriticalTrigger Reachable Dangerous Capability_init.js
HighChild Process_init.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to devplatform-react-scripts@35.2.9.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-react-scripts@35.2.9. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.