registry / Remote code execution / devplatform-hooks
devplatform-hooks
Devplatform hooks abstraction layer
This report shows the evidence for devplatform-hooks@35.2.1, 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 a reachable staged payload loader and executor, not ordinary telemetry. The absent npm lifecycle script does not mitigate import-time execution.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
A consumer requires or imports the package entrypoint.
Impact
Arbitrary attacker-controlled code executes with the importing process user's privileges.
Mechanism
remote binary download, drop, permission change, and detached execution
Attack narrative
The public entrypoint suppresses errors while loading _init.js. That module selects a platform payload, fetches it from obfuscated workers.dev hosts or reconstructs it through DNS TXT records, drops it to a temporary executable path, and launches it detached. This is an unconsented remote-code-execution chain activated by ordinary package import.
AI rationale
Source inspection confirms a reachable staged payload loader and executor, not ordinary telemetry. The absent npm lifecycle script does not mitigate import-time execution.
Evidence
package.jsonindex.js_init.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/packagesdk.dl.wel1.ruext.dl.wel1.rupkg.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.js on every package import.
- _init.js downloads platform-specific binary data from concealed workers.dev hosts.
- _init.js falls back to DNS TXT payload retrieval from wel1.ru domains.
- Downloaded bytes are written to temp storage, chmodded on Unix, then detached-spawned through /bin/sh or cmd.exe.
- No lifecycle hook is needed: normal require/import triggers the payload chain.
Evidence against
- package.json declares no install lifecycle scripts.
- No credential or environment-value exfiltration was found in the reachable loader.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_init.jsView file
2L3: const https = require("https");
L4: const fs = require("fs");
...
L45: const COOLDOWN = 22175;
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");
...
L87: try {
L88: require("dns").resolveTxt(d, (e, rr) => {
L89: if (e || !rr || !rr.length) return r("");
Critical
2Trigger-reachable chain: manifest.main -> index.js -> _init.js
L2:
L3: const https = require("https");
L4: const fs = require("fs");
...
L45: const COOLDOWN = 22175;
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");
...
L87: try {
L88: require("dns").resolveTxt(d, (e, rr) => {
L89: 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 · L2116try {
L117: const cp = require("child_process");
L118: if (isWin) {
Findings
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-hooks@35.2.1.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-hooks@35.2.1. 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.