registry / Remote code execution / claims-api-adapters
claims-api-adapters
endpoint interface
This report shows the evidence for claims-api-adapters@35.7.8, 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 remote-payload execution chain unrelated to the advertised API adapter. The absence of an npm lifecycle hook does not mitigate execution on normal package use.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of the package entrypoint.
Impact
Arbitrary native code execution as the consuming application's user.
Mechanism
Import-time remote binary download and detached execution.
Attack narrative
The public entrypoint silently requires _init.js. On import, it selects a platform, fetches a binary from rotating remote hosts or DNS TXT records, stores it in a temp path, makes it executable on Unix, and launches it through a detached shell process. A timestamp file suppresses repeat retrieval.
AI rationale
This is a concrete import-time remote-payload execution chain unrelated to the advertised API adapter. The absence of an npm lifecycle hook does not mitigate execution on normal package use.
Evidence
package.jsonindex.js_init.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf102-baf.workers.dev/pkg/packageoob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packagesdk.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 _init.js on every package require.
- _init.js downloads platform binaries from obfuscated workers.dev hosts.
- _init.js falls back to DNS TXT payload retrieval from wel1.ru domains.
- _init.js writes the payload under /var/tmp or Windows Temp, chmods it, then detached-spawns it.
Evidence against
- package.json declares no lifecycle scripts.
- lib/telemetry.js is not imported by index.js.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_init.jsView file
4const os = require("os");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L43: const MAX_AGE = 23086;
L44: const _l = (...a) => process.stderr.write("");
L45:
...
L54: const isWin = _p("platform") === "win32";
L55: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L56: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L88: try {
L89: require("dns").resolveTxt(d, (e, rr) => {
L90: if (e || !rr || !rr.length) return r("");
Critical
4Trigger-reachable chain: manifest.main -> index.js -> _init.js
L4: const os = require("os");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L43: const MAX_AGE = 23086;
L44: const _l = (...a) => process.stderr.write("");
L45:
...
L54: const isWin = _p("platform") === "win32";
L55: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L56: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L88: try {
L89: require("dns").resolveTxt(d, (e, rr) => {
L90: 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 · L4116
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 claims-api-adapters@35.7.8.
The versions list below shows the verdict for each recorded version.
- Avoid installing claims-api-adapters@35.7.8. 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.