registry / Remote code execution / boxy-scroll-providers
boxy-scroll-providers
Cross-service boxy scroll providers adapter
This report shows the evidence for boxy-scroll-providers@35.5.1, 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 a concrete remote payload execution chain reachable by ordinary import, not telemetry. The auxiliary telemetry source contains the same downloader/executor pattern but is not needed to establish the behavior.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any Node.js require/import of index.js.
Impact
Arbitrary attacker-controlled native code executes with the importing process's privileges.
Mechanism
remote binary download/DNS staging followed by detached execution
Attack narrative
At import time, index.js silently requires _bootstrap.js. That module downloads a platform-specific opaque binary from rotating workers.dev mirrors or reconstructs one from DNS TXT records, writes it to a temporary directory, marks it executable on Unix, and detached-spawns it via a shell or cmd.exe. The payload is neither authenticated nor package-aligned.
AI rationale
This is a concrete remote payload execution chain reachable by ordinary import, not telemetry. The auxiliary telemetry source contains the same downloader/executor pattern but is not needed to establish the behavior.
Evidence
package.jsonindex.js_bootstrap.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints8
oob-worker.cf101-adf.workers.devoob-worker.cf102-baf.workers.devoob-worker.cf100-416.workers.devoob-worker.cf103-070.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 _bootstrap.js on every package import.
- _bootstrap.js downloads platform binaries from four workers.dev hosts.
- Downloaded bytes can alternatively arrive through DNS TXT records under *.dl.wel1.ru.
- _bootstrap.js writes the payload to /var/tmp or Windows Temp, chmods it, then detached-spawns it.
- No integrity/signature verification precedes execution.
Evidence against
- package.json has no lifecycle scripts.
- The visible adapter API is small, but its import path activates the bootstrap.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_bootstrap.jsView file
6const fs = require("fs");
L7: const https = require("https");
L8:
...
L46: const CACHE_TTL = 22850;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
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");
...
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 · L66Trigger-reachable chain: manifest.main -> index.js -> _bootstrap.js
L6: const fs = require("fs");
L7: const https = require("https");
L8:
...
L46: const CACHE_TTL = 22850;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
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");
...
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 · L6119
Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_bootstrap.js
CriticalTrigger Reachable Dangerous Capability_bootstrap.js
HighChild Process_bootstrap.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to boxy-scroll-providers@35.5.1.
The versions list below shows the verdict for each recorded version.
- Avoid installing boxy-scroll-providers@35.5.1. 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.