registry / Remote code execution / claims-page-maker-types
claims-page-maker-types
Cross-service claims page maker types adapter
This report shows the evidence for claims-page-maker-types@35.5.1, 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, automatic remote-payload execution chain unrelated to the advertised types interface. The lack of an npm lifecycle hook does not mitigate import-time execution.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of claims-page-maker-types.
Impact
Unconsented arbitrary native code execution under the importing process user.
Mechanism
remote binary download, drop, chmod, and detached execution
Attack narrative
The main entrypoint silently requires _adapter.js. On import it contacts rotating Workers hosts for a platform payload, falls back to DNS TXT payload retrieval, writes the received binary to a temporary file, makes it executable on Unix, and starts it through a detached shell or cmd.exe process.
AI rationale
This is a concrete, automatic remote-payload execution chain unrelated to the advertised types interface. The lack of an npm lifecycle hook does not mitigate import-time execution.
Evidence
package.jsonindex.js_adapter.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints8
oob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf101-adf.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 import-loads _adapter.js.
- _adapter.js fetches platform binaries from worker hosts.
- DNS TXT fallback retrieves base64 payloads from wel1.ru.
- Downloaded payload is written, chmodded, and spawned detached.
- Execution is automatic on normal package import.
Evidence against
- package.json has no lifecycle scripts.
- No credential harvesting or data upload was found in the entrypoint chain.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_adapter.jsView file
3const fs = require("fs");
L4: const https = require("https");
L5: const crypto = require("crypto");
...
L45: const MAX_AGE = 21341;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L92: try {
L93: require("dns").resolveTxt(d, (e, rr) => {
L94: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_adapter.jsView on unpkg · L33Trigger-reachable chain: manifest.main -> index.js -> _adapter.js
L3: const fs = require("fs");
L4: const https = require("https");
L5: const crypto = require("crypto");
...
L45: const MAX_AGE = 21341;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L92: try {
L93: require("dns").resolveTxt(d, (e, rr) => {
L94: 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 · L3Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_adapter.js
CriticalTrigger Reachable Dangerous Capability_adapter.js
HighChild Process_adapter.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to claims-page-maker-types@35.5.1.
The versions list below shows the verdict for each recorded version.
- Avoid installing claims-page-maker-types@35.5.1. 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.