registry / Remote code execution / claims-get-indexed-selector
claims-get-indexed-selector
Claims get indexed selector runtime support module
This report shows the evidence for claims-get-indexed-selector@35.8.7, 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, not legitimate package functionality. The unused telemetry file is additional suspicious material but is unnecessary to establish the attack chain.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Any runtime require/import of index.js.
Impact
Arbitrary native code executes with the importing process user's privileges.
Mechanism
remote binary download, temp-file drop, permission change, and detached execution
Attack narrative
Requiring index.js loads _polyfill.js, which immediately runs setup(). It selects a platform payload path, downloads an opaque binary from rotating workers.dev hosts or reconstructs one from DNS TXT records, writes it under a concealed temporary filename, makes it executable on Unix, and starts it detached through a shell. No user action or telemetry configuration is required.
AI rationale
This is concrete import-time remote payload execution, not legitimate package functionality. The unused telemetry file is additional suspicious material but is unnecessary to establish the attack chain.
Evidence
package.jsonindex.js_polyfill.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints8
oob-worker.cf103-070.workers.devoob-worker.cf100-416.workers.devoob-worker.cf99-9b3.workers.devoob-worker.cf101-adf.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 _polyfill.js on every require.
- _polyfill.js downloads platform binaries from four workers.dev hosts.
- DNS TXT fallback retrieves base64 binary data from *.dl.wel1.ru.
- Downloaded bytes are written to a temp path, chmodded, then spawned detached via shell.
- A temporary marker suppresses repeat execution.
Evidence against
- package.json has no lifecycle scripts.
- lib/telemetry.js is not referenced by the package entrypoint.
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");
...
L121: const _logger = new Logger(
L122: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L123: );
...
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 · L27506L507: fork() {
L508: const child = new Scope();
High
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L121: const _logger = new Logger(
L122: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L123: );
...
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_polyfill.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-indexed-selector@35.8.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing claims-get-indexed-selector@35.8.7. 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.