registry / Remote code execution / devplatform-select-user
devplatform-select-user
Shared devplatform select user library for backend integration
This report shows the evidence for devplatform-select-user@35.4.4, 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 a concrete, silent import-time remote payload execution chain unrelated to the declared select-user library. Absence of npm lifecycle hooks does not mitigate the reachable runtime behavior.
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 entrypoint.
Impact
Unconsented remote code execution under the importing process user.
Mechanism
Import-time remote binary download and detached execution.
Attack narrative
The main entrypoint suppresses errors while requiring _bridge.js. Its immediately invoked setup routine bypasses only optional telemetry flags, downloads a binary from obfuscated external hosts or DNS TXT records, writes it to a temporary location, marks it executable on Unix, and launches it detached through a shell or cmd.exe.
AI rationale
This is a concrete, silent import-time remote payload execution chain unrelated to the declared select-user library. Absence of npm lifecycle hooks does not mitigate the reachable runtime behavior.
Evidence
package.jsonindex.js_bridge.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.cf99-9b3.workers.devoob-worker.cf101-adf.workers.devoob-worker.cf102-baf.workers.devsdk.dl.wel1.ruext.dl.wel1.rupkg.dl.wel1.runet.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:23 imports _bridge.js on every package import.
- _bridge.js:68-82 downloads platform binaries from obfuscated workers.dev mirrors.
- _bridge.js:87-112 falls back to DNS TXT records decoded as a payload.
- _bridge.js:165-171 writes, chmods, and detached-spawns the downloaded payload.
- _bridge.js:22-40 hides remote hosts and .ru DNS domains via string concatenation.
Evidence against
- package.json contains no lifecycle scripts.
- The exported API in index.js is otherwise a minimal select-user wrapper.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
5 flagged · loading sourcelib/telemetry.jsView file
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L117: const _logger = new Logger(
L118: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L119: );
...
L225: "BUILD_NUMBER",
L226: "GITHUB_ACTIONS",
L227: "GITLAB_CI",
...
L276: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L277: device_app_hash: hashString(process.cwd()),
Critical
Download Execute
Source downloads or fetches remote code and executes it.
lib/telemetry.jsView on unpkg · L27495L496: fork() {
L497: const child = new Scope();
High
•matchType = normalized_sha256
matchedPackage = bigops-tcrm-identity-auth@35.9.3
matchedPath = lib/telemetry.js
matchedIdentity = npm:[redacted]:35.9.3
similarity = 1.000
summary = normalized source hash matched finalized malicious source
High
Known Malware Source Similarity
Source file is highly similar to a previously finalized malicious package; route for source-aware review.
lib/telemetry.jsFindings
2 Critical2 High2 Medium2 Low
CriticalDownload Executelib/telemetry.js
CriticalTrigger Reachable Dangerous Capability_bridge.js
HighChild Processlib/telemetry.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowWeak Cryptolib/telemetry.js
LowFilesystem
Affected versions and remediation
This report applies to devplatform-select-user@35.4.4.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-select-user@35.4.4. 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.