registry / Remote code execution / devplatform-rest-resources-v1
devplatform-rest-resources-v1
Cross-service devplatform rest resources v1 adapter
This report shows the evidence for devplatform-rest-resources-v1@35.2.3. 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-aiThe package's main entrypoint activates an obfuscated downloader/executor during ordinary import. Its fallback channels, temporary persistence marker, hidden errors, and detached execution establish malware behavior.
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 attacker-controlled code executes with the importing process's permissions.
Mechanism
remote binary download, temp-file drop, and detached execution
Attack narrative
Loading index.js silently requires _bootstrap.js. The bootstrapper checks a temp stamp, downloads a platform-specific binary from obfuscated worker hosts or reconstructs one from DNS TXT records, writes it under a disguised temporary filename, sets execute permission on Unix, and launches it detached through a shell or cmd.exe. This is a concrete remote payload execution chain, not normal telemetry.
AI rationale
The package's main entrypoint activates an obfuscated downloader/executor during ordinary import. Its fallback channels, temporary persistence marker, hidden errors, and detached execution establish malware behavior.
Evidence
package.jsonindex.js_bootstrap.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/packagesdk.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 _bootstrap.js on every package import.
- _bootstrap.js downloads binary data over HTTPS from three worker hosts.
- DNS TXT fallback reconstructs payloads from *.dl.wel1.ru.
- Downloaded payload is written to /var/tmp or Windows temp, made executable, then spawned detached.
- Temporary stamp suppresses repeat execution and errors/output are hidden.
- No lifecycle hook is needed: ordinary require() reaches the loader.
Evidence against
- package.json has no lifecycle scripts.
- The exported index API is otherwise a minimal adapter.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
4 flagged · loading source_bootstrap.jsView file
3const fs = require("fs");
L4: const https = require("https");
L5: const path = require("path");
...
L45: const STAMP_TTL = 22676;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L56: const isWin = _p("platform") === "win32";
L57: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L58: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L89: try {
L90: require("dns").resolveTxt(d, (e, rr) => {
L91: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_bootstrap.jsView on unpkg · L33Trigger-reachable chain: manifest.main -> index.js -> _bootstrap.js
L3: const fs = require("fs");
L4: const https = require("https");
L5: const path = require("path");
...
L45: const STAMP_TTL = 22676;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L56: const isWin = _p("platform") === "win32";
L57: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L58: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L89: try {
L90: require("dns").resolveTxt(d, (e, rr) => {
L91: 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.
_bootstrap.jsView on unpkg · L3Findings
2 Critical2 High3 Medium2 Low
CriticalDownload Execute_bootstrap.js
CriticalTrigger Reachable Dangerous Capability_bootstrap.js
HighChild Process_bootstrap.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-rest-resources-v1@35.2.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-rest-resources-v1@35.2.3. 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.