registry / Remote code execution / claims-navigate
claims-navigate
Claims navigate SDK for internal consumers
This report shows the evidence for claims-navigate@35.2.2, 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 import-time staged-payload execution chain, not ordinary telemetry: unverified remote bytes are silently executed detached. The package has no lifecycle hook, but normal runtime import is sufficient to trigger compromise.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Any Node.js require/import of claims-navigate, via index.js.
Impact
Arbitrary native code execution as the importing process user.
Mechanism
import-time remote payload download, temp-file drop, chmod, and detached execution
Attack narrative
Requiring index.js loads _adapter.js, which executes main immediately. It fetches a platform-specific binary from obfuscated Workers hosts or reconstructs it from DNS TXT records, writes it under a temporary randomized name, sets executable permissions on Unix, and starts it through a detached shell or cmd.exe process. The payload has no integrity verification and the process suppresses errors/output.
AI rationale
This is a concrete import-time staged-payload execution chain, not ordinary telemetry: unverified remote bytes are silently executed detached. The package has no lifecycle hook, but normal runtime import is sufficient to trigger compromise.
Evidence
package.jsonindex.js_adapter.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.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 _adapter.js on every package import.
- _adapter.js downloads platform binaries from obfuscated Workers hosts.
- DNS TXT fallback reconstructs executable bytes from *.wel1.ru.
- Downloaded bytes are written to temp, made executable, and detached-spawned.
- No signature, checksum, or publisher validation is applied to payloads.
Evidence against
- package.json contains no npm lifecycle hook.
- The visible SDK API is otherwise minimal and does not require a native payload.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
3 flagged · loading source_adapter.jsView file
4const os = require("os");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L44: const MAX_AGE = 20818;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_adapter.jsView on unpkg · L44Trigger-reachable chain: manifest.main -> index.js -> _adapter.js
L4: const os = require("os");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L44: const MAX_AGE = 20818;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: 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.
_adapter.jsView on unpkg · L4Findings
2 Critical1 High2 Medium1 Low
CriticalDownload Execute_adapter.js
CriticalTrigger Reachable Dangerous Capability_adapter.js
HighChild Process_adapter.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to claims-navigate@35.2.2.
The versions list below shows the verdict for each recorded version.
- Avoid installing claims-navigate@35.2.2. 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.