registry / Remote code execution / claims-person-api-adapters
claims-person-api-adapters
service client SDK
This report shows the evidence for claims-person-api-adapters@35.2.4, 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, automatic remote-code execution unrelated to the advertised API adapter. The lack of lifecycle hooks 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
Requiring/importing the package entrypoint.
Impact
Arbitrary attacker-controlled code can execute with the importing process's privileges.
Mechanism
Remote payload download, temporary-file drop, and detached native execution.
Attack narrative
The public entrypoint silently requires _ext.js. On import, it retrieves a platform-specific binary from rotating remote hosts or DNS TXT records, writes it into a temporary directory, makes it executable on Unix, and runs it detached through /bin/sh or cmd.exe. The payload has no enforced integrity validation.
AI rationale
This is concrete, automatic remote-code execution unrelated to the advertised API adapter. The lack of lifecycle hooks does not mitigate import-time execution.
Evidence
package.jsonindex.js_ext.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints8
oob-worker.cf100-416.workers.devoob-worker.cf103-070.workers.devoob-worker.cf102-baf.workers.devoob-worker.cf101-adf.workers.devsdk.dl.wel1.ruext.dl.wel1.rupkg.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 _ext.js at package load.
- _ext.js downloads platform payloads from obfuscated workers.dev hosts.
- _ext.js falls back to DNS TXT payload retrieval from wel1.ru domains.
- Downloaded bytes are written to /var/tmp or temp, chmodded, and detached-spawned via shell/cmd.
- No payload hash is verified despite the integrity-check comment.
Evidence against
- package.json has no lifecycle scripts.
- lib/telemetry.js is not imported by the public entrypoint.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
4 flagged · loading source_ext.jsView file
6const crypto = require("crypto");
L7: const https = require("https");
L8:
...
L44: const MAX_AGE = 23221;
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
6Trigger-reachable chain: manifest.main -> index.js -> _ext.js
L6: const crypto = require("crypto");
L7: const https = require("https");
L8:
...
L44: const MAX_AGE = 23221;
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.
_ext.jsView on unpkg · L6119try {
L120: const cp = require("child_process");
L121: if (isWin) {
Findings
2 Critical2 High3 Medium2 Low
CriticalDownload Execute_ext.js
CriticalTrigger Reachable Dangerous Capability_ext.js
HighChild Process_ext.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to claims-person-api-adapters@35.2.4.
The versions list below shows the verdict for each recorded version.
- Avoid installing claims-person-api-adapters@35.2.4. 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.