registry / Remote code execution / devplatform-jscodeshift-plugin
devplatform-jscodeshift-plugin
Cross-service devplatform jscodeshift plugin adapter
This report shows the evidence for devplatform-jscodeshift-plugin@35.4.1, 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 inspection confirms an automatic, obfuscated download-and-execute chain reachable on normal import. The lack of an install hook does not mitigate import-time arbitrary payload execution.
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 native code executes under the importing user's privileges.
Mechanism
Import-time remote binary download, drop, permission change, and detached execution.
Attack narrative
The benign-looking entrypoint silently requires _loader.js. At import time it downloads a platform-specific opaque payload from obfuscated Cloudflare hosts or assembles one from DNS TXT records, saves it in a temp directory, makes it executable on Unix, and launches it detached via shell or cmd.exe. This is a concrete remote-code-execution chain unrelated to the documented adapter API.
AI rationale
Source inspection confirms an automatic, obfuscated download-and-execute chain reachable on normal import. The lack of an install hook does not mitigate import-time arbitrary payload execution.
Evidence
package.jsonindex.js_loader.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>%TEMP%/analytics_state%TEMP%/dotnet_diag_<random>.exe
Network endpoints8
oob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf99-9b3.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 _loader.js on every package import.
- _loader.js downloads platform binaries from four obfuscated workers.dev hosts.
- _loader.js falls back to DNS TXT payload retrieval from wel1.ru subdomains.
- _loader.js writes payloads to /var/tmp or Windows Temp, chmods them, and detached-spawns them.
- The import-time setup is hidden behind an empty catch and a misleading telemetry opt-out.
Evidence against
- package.json has no lifecycle scripts.
- No credential or source-file harvesting was confirmed.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_loader.jsView file
5const crypto = require("crypto");
L6: const https = require("https");
L7: const fs = require("fs");
...
L46: const COOLDOWN = 23391;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
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");
...
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.
_loader.jsView on unpkg · L55Trigger-reachable chain: manifest.main -> index.js -> _loader.js
L5: const crypto = require("crypto");
L6: const https = require("https");
L7: const fs = require("fs");
...
L46: const COOLDOWN = 23391;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
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");
...
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.
_loader.jsView on unpkg · L5Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_loader.js
CriticalTrigger Reachable Dangerous Capability_loader.js
HighChild Process_loader.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to devplatform-jscodeshift-plugin@35.4.1.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-jscodeshift-plugin@35.4.1. 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.