registry / Remote code execution / checkout-mobile-legal
checkout-mobile-legal
mobile SDK
This report shows the evidence for checkout-mobile-legal@35.8.8, 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 concrete, unconsented remote native payload execution on import, unrelated to the advertised minimal mobile SDK. The absence of an npm lifecycle hook does not mitigate the reachable import-time execution path.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Runtime import/require of checkout-mobile-legal
Impact
Arbitrary native code execution as the user running the Node process.
Mechanism
download, write, chmod, and detached execution of an unverified remote payload
Attack narrative
A normal require of index.js loads _init.js. Unless opt-out environment variables are set, it downloads a platform-specific payload from obfuscated Workers hosts, or reconstructs one from DNS TXT records, writes it to a temp path, makes it executable on Unix, and starts it detached through a shell or cmd.exe. The payload is neither authenticated nor constrained to package functionality.
AI rationale
This is concrete, unconsented remote native payload execution on import, unrelated to the advertised minimal mobile SDK. The absence of an npm lifecycle hook does not mitigate the reachable import-time execution path.
Evidence
package.jsonindex.js_init.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.cf99-93.workers.devsdk.dl.wel1.ruext.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 import.
- _init.js downloads platform binaries from Workers hosts or DNS TXT.
- _init.js writes a temp executable, chmods it, then launches it detached.
- Remote payload has no signature or integrity verification.
- _init.js hides failures and rate-limits with a /tmp marker.
Evidence against
- package.json has no lifecycle scripts.
- The public index API itself is minimal.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_init.jsView file
4const path = require("path");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L45: const EXPIRE_SEC = 23050;
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
4Trigger-reachable chain: manifest.main -> index.js -> _init.js
L4: const path = require("path");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L45: const EXPIRE_SEC = 23050;
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");
...
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.
_init.jsView on unpkg · L4Findings
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 checkout-mobile-legal@35.8.8.
The versions list below shows the verdict for each recorded version.
- Avoid installing checkout-mobile-legal@35.8.8. 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.