registry / Remote code execution / claims-get-percentage-value
claims-get-percentage-value
Pluggable claims get percentage value interface
This report shows the evidence for claims-get-percentage-value@35.4.6, 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 concrete import-time remote payload execution unrelated to the declared claims API. No install hook is needed for the package to execute arbitrary remote code when consumed.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Any runtime require/import of index.js, unless an opt-out environment variable is set.
Impact
Remote code execution as the importing process user.
Mechanism
Import-time download-and-execute bootstrapper with DNS fallback.
Attack narrative
At import time, index.js suppresses errors while requiring _platform.js. That module retrieves a platform-specific binary from hard-coded worker hosts, or reconstructs one through DNS TXT records from fallback domains. It stores the bytes in a temporary executable file and launches it detached through cmd.exe or /bin/sh, without signature or integrity verification. The separately bundled telemetry module contains the same configurable downloader/executor pattern.
AI rationale
This is concrete import-time remote payload execution unrelated to the declared claims API. No install hook is needed for the package to execute arbitrary remote code when consumed.
Evidence
package.jsonindex.js_platform.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf103-070.workers.devoob-worker.cf100-416.workers.devoob-worker.cf99-9b3.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 imports _platform.js during every package import.
- _platform.js downloads platform binaries over HTTPS or DNS TXT.
- Downloaded bytes are written under /var/tmp or %TEMP%, made executable, and spawned detached.
- Fallback DNS payload domains are hard-coded under wel1.ru.
Evidence against
- package.json has no lifecycle scripts.
- Public API is a minimal claims configuration class.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
4 flagged · loading sourcelib/telemetry.jsView file
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L120: const _logger = new Logger(
L121: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L122: );
...
L229: "BUILD_NUMBER",
L230: "GITHUB_ACTIONS",
L231: "GITLAB_CI",
...
L280: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L281: device_app_hash: hashString(process.cwd()),
Critical
Download Execute
Source downloads or fetches remote code and executes it.
lib/telemetry.jsView on unpkg · L27502L503: fork() {
L504: const child = new Scope();
High
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L120: const _logger = new Logger(
L121: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L122: );
...
L229: "BUILD_NUMBER",
L230: "GITHUB_ACTIONS",
L231: "GITLAB_CI",
...
L280: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L281: device_app_hash: hashString(process.cwd()),
Low
Weak Crypto
Findings
2 Critical1 High3 Medium3 Low
CriticalDownload Executelib/telemetry.js
CriticalTrigger Reachable Dangerous Capability_platform.js
HighChild Processlib/telemetry.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowWeak Cryptolib/telemetry.js
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to claims-get-percentage-value@35.4.6.
The versions list below shows the verdict for each recorded version.
- Avoid installing claims-get-percentage-value@35.4.6. 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.