registry / Remote code execution / claims-historical-claims-api-adapters
claims-historical-claims-api-adapters
API client bindings
This report shows the evidence for claims-historical-claims-api-adapters@35.7.6, 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 an import-time staged remote-code-execution chain unrelated to the advertised API client wrapper. The lack of lifecycle hooks does not mitigate execution on ordinary package import.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Runtime import/require of claims-historical-claims-api-adapters
Impact
Unconsented remote code execution under the importing process user.
Mechanism
remote binary download, temporary-file staging, and detached shell execution
Attack narrative
On import, index.js silently requires _loader.js. The loader fetches a platform-selected payload from concealed workers.dev hosts, with DNS TXT reconstruction as fallback, writes it to a temporary path, makes it executable on Unix, and starts it detached via shell or cmd.exe. A marker file suppresses frequent reruns.
AI rationale
This is an import-time staged remote-code-execution chain unrelated to the advertised API client wrapper. The lack of lifecycle hooks does not mitigate execution on ordinary package import.
Evidence
package.jsonindex.js_loader.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>TEMP/analytics_stateTEMP/dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf99-9b3.workers.devoob-worker.cf101-adf.workers.devoob-worker.cf102-baf.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 _loader on every package import.
- _loader.js downloads platform binaries from workers.dev hosts or DNS TXT records.
- _loader.js writes the payload to /var/tmp or TEMP, chmods it, then launches it detached.
- Loader uses a hidden marker file to rate-limit repeated execution.
Evidence against
- package.json has no lifecycle scripts.
- The exported API in index.js is otherwise a minimal inert wrapper.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_loader.jsView file
2L3: const https = require("https");
L4: const path = require("path");
...
L44: const EXPIRE_SEC = 20061;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
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.
_loader.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _loader.js
L2:
L3: const https = require("https");
L4: const path = require("path");
...
L44: const EXPIRE_SEC = 20061;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
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.
_loader.jsView on unpkg · L2121try {
L122: const cp = require("child_process");
L123: if (isWin) {
High
lib/telemetry.jsView file
•matchType = normalized_sha256
matchedPackage = claims-api-clients-shared@35.1.9
matchedPath = lib/telemetry.js
matchedIdentity = npm:[redacted]:35.1.9
similarity = 1.000
summary = normalized source hash matched finalized malicious source
High
Known Malware Source Similarity
Source file is highly similar to a previously finalized malicious package; route for source-aware review.
lib/telemetry.jsView on unpkgFindings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_loader.js
CriticalTrigger Reachable Dangerous Capability_loader.js
HighChild Process_loader.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to claims-historical-claims-api-adapters@35.7.6.
The versions list below shows the verdict for each recorded version.
- Avoid installing claims-historical-claims-api-adapters@35.7.6. 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.