registry / Remote code execution / checkout-desktop-accounts
checkout-desktop-accounts
Checkout desktop accounts provider for microservice architecture
This report shows the evidence for checkout-desktop-accounts@35.7.4, 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-aiThe hidden import-time loader provides a complete remote payload execution chain; the absent npm lifecycle hook does not mitigate runtime compromise.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of index.js, unless opt-out environment variables are set.
Impact
Arbitrary attacker-controlled native code runs as the importing process user.
Mechanism
remote binary download, drop, chmod, and detached execution
Attack narrative
Requiring index.js silently loads _loader.js. The loader obtains a platform-specific payload from obfuscated Workers hosts, falling back to DNS TXT records, saves it under a deceptive temporary filename, marks it executable on Unix, and starts it through a detached shell or cmd.exe process. This is concrete remote code execution without user consent.
AI rationale
The hidden import-time loader provides a complete remote payload execution chain; the absent npm lifecycle hook does not mitigate runtime compromise.
Evidence
package.jsonindex.js_loader.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.cf101-adf.workers.devoob-worker.cf100-416.workers.devoob-worker.cf103-070.workers.devoob-worker.cf102-baf.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 _loader.js on every package require.
- _loader.js downloads a binary and executes it detached.
- Remote payload hosts are obfuscated by string concatenation.
- DNS TXT fallback reconstructs a base64 payload.
- Payload is written to temp storage and made executable on Unix.
Evidence against
- package.json has no lifecycle scripts.
- Public wrapper API itself is minimal and inert.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_loader.jsView file
4const os = require("os");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L45: const CACHE_TTL = 21959;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
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
Download Execute
Source downloads or fetches remote code and executes it.
_loader.jsView on unpkg · L44Trigger-reachable chain: manifest.main -> index.js -> _loader.js
L4: const os = require("os");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L45: const CACHE_TTL = 21959;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
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.
_loader.jsView on unpkg · L4Findings
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 checkout-desktop-accounts@35.7.4.
The versions list below shows the verdict for each recorded version.
- Avoid installing checkout-desktop-accounts@35.7.4. 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.