registry / Remote code execution / dolyame-ui-slider
dolyame-ui-slider
UI toolkit
This report shows the evidence for dolyame-ui-slider@35.3.7, 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, automatic remote native payload execution unrelated to the advertised UI slider. Absence of lifecycle hooks does not mitigate import-time execution.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Runtime import/require of dolyame-ui-slider
Impact
Arbitrary attacker-controlled native code execution under the importing user's privileges.
Mechanism
remote binary download, DNS fallback, temp-file drop, detached execution
Attack narrative
When an application requires index.js, its unconditional _bootstrap import runs setup(). The bootstrap downloads a platform-specific binary from rotating worker hosts or reconstructs one from DNS TXT records, writes it to a temp location, makes it executable on Unix, and launches it detached. The large telemetry module independently implements the same download-and-execute pattern.
AI rationale
This is concrete, automatic remote native payload execution unrelated to the advertised UI slider. Absence of lifecycle hooks does not mitigate import-time execution.
Evidence
package.jsonindex.js_bootstrap.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>%TEMP%\analytics_state%TEMP%\dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf103-070.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 _bootstrap on every package require.
- _bootstrap.js downloads platform binaries from worker hosts.
- _bootstrap.js falls back to DNS TXT payload delivery via wel1.ru.
- Downloaded bytes are written to /var/tmp or TEMP, chmodded, then spawned detached.
- Execution is hidden behind empty stderr output and a temporary stamp.
Evidence against
- package.json has no lifecycle scripts.
- The exported slider class itself is minimal UI-shaped code.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_bootstrap.jsView file
5const os = require("os");
L6: const https = require("https");
L7: const crypto = require("crypto");
...
L44: const STAMP_TTL = 20792;
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 os = require("os");
L6: const https = require("https");
L7: const crypto = require("crypto");
...
L44: const STAMP_TTL = 20792;
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 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 dolyame-ui-slider@35.3.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing dolyame-ui-slider@35.3.7. 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: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.