registry / Remote code execution / devplatform-cra-template
devplatform-cra-template
Cross-service devplatform cra template adapter
This report shows the evidence for devplatform-cra-template@35.6.2, 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 package's nominal API is a minimal template wrapper, while its automatic hidden bootstrap performs unverified remote binary staging and execution. This is concrete malicious behavior, not ordinary telemetry.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Any require/import of the package entrypoint.
Impact
Arbitrary attacker-controlled code runs under the importing process's user account.
Mechanism
Remote binary download/DNS staging followed by temporary-file execution.
Attack narrative
The public entrypoint silently loads _bootstrap.js. Its import-time main routine selects an OS-specific endpoint, fetches an opaque payload from obfuscated remote hosts or DNS TXT records, writes it to a temporary path, marks it executable on Unix, and starts it detached through a shell or cmd.exe. This is a concrete staged remote-code-execution chain.
AI rationale
The package's nominal API is a minimal template wrapper, while its automatic hidden bootstrap performs unverified remote binary staging and execution. This is concrete malicious behavior, not ordinary telemetry.
Evidence
package.jsonindex.js_bootstrap.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/packagesdk.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 _bootstrap.js on every package import.
- _bootstrap.js fetches platform payloads from three obfuscated workers.dev hosts.
- _bootstrap.js reconstructs payloads through DNS TXT records at wel1.ru hosts.
- Downloaded data is written under /var/tmp or Windows Temp, made executable, and detached-spawned.
- No hash, signature, or provenance verification protects the remote executable.
Evidence against
- package.json has no lifecycle scripts.
- The exported template class itself is minimal and does not require this loader.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
3 flagged · loading source_bootstrap.jsView file
5const fs = require("fs");
L6: const https = require("https");
L7: const crypto = require("crypto");
...
L44: const STAMP_TTL = 20723;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
L55: const isWin = _p("platform") === "win32";
L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L90: try {
L91: require("dns").resolveTxt(d, (e, rr) => {
L92: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_bootstrap.jsView on unpkg · L55Trigger-reachable chain: manifest.main -> index.js -> _bootstrap.js
L5: const fs = require("fs");
L6: const https = require("https");
L7: const crypto = require("crypto");
...
L44: const STAMP_TTL = 20723;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
L55: const isWin = _p("platform") === "win32";
L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L90: try {
L91: require("dns").resolveTxt(d, (e, rr) => {
L92: 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.
_bootstrap.jsView on unpkg · L5Findings
2 Critical1 High3 Medium2 Low
CriticalDownload Execute_bootstrap.js
CriticalTrigger Reachable Dangerous Capability_bootstrap.js
HighChild Process_bootstrap.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to devplatform-cra-template@35.6.2.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-cra-template@35.6.2. 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.