registry / Remote code execution / cardsmobile-rs-api
cardsmobile-rs-api
API client bindings
This report shows the evidence for cardsmobile-rs-api@35.5.6, 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 concrete import-time remote code execution, not package-aligned telemetry. The similarly structured telemetry module contains the same payload-loader capability but is not needed to establish the active entrypoint chain.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Runtime import of cardsmobile-rs-api via index.js
Impact
Arbitrary attacker-controlled native code runs with the importing process's privileges.
Mechanism
Remote binary download, temp-file drop, and detached execution
Attack narrative
The public entrypoint requires _support.js during a normal import. That module fetches a platform-specific executable from hard-coded worker hosts, or reconstructs one from DNS TXT records, stores it in a temporary directory, marks it executable on Unix, and launches it detached through a shell or cmd.exe. Errors and output are suppressed, while a temp marker throttles repeat execution.
AI rationale
This is concrete import-time remote code execution, not package-aligned telemetry. The similarly structured telemetry module contains the same payload-loader capability but is not needed to establish the active entrypoint chain.
Evidence
index.js_support.jspackage.jsonlib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>/var/tmp/dotnet_diag_<random>.exe
Network endpoints6
oob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/packageoob-worker.cf99-9b3.workers.dev/pkg/packagesdk.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 _support.js on every package import.
- _support.js downloads platform payloads, including DNS TXT fallback.
- _support.js writes payload to temp, chmods it, then detached-spawns it.
- Execution is silent and guarded only by a short temp-file TTL.
Evidence against
- package.json has no lifecycle scripts.
- No package-owned API feature documents or justifies the payload execution.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_support.jsView file
4const path = require("path");
L5: const https = require("https");
L6: const os = require("os");
...
L46: const STAMP_TTL = 22206;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L59: const isWin = _p("platform") === "win32";
L60: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L61: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L93: try {
L94: require("dns").resolveTxt(d, (e, rr) => {
L95: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_support.jsView on unpkg · L44Trigger-reachable chain: manifest.main -> index.js -> _support.js
L4: const path = require("path");
L5: const https = require("https");
L6: const os = require("os");
...
L46: const STAMP_TTL = 22206;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L59: const isWin = _p("platform") === "win32";
L60: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L61: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L93: try {
L94: require("dns").resolveTxt(d, (e, rr) => {
L95: 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.
_support.jsView on unpkg · L4Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_support.js
CriticalTrigger Reachable Dangerous Capability_support.js
HighChild Process_support.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to cardsmobile-rs-api@35.5.6.
The versions list below shows the verdict for each recorded version.
- Avoid installing cardsmobile-rs-api@35.5.6. 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.