Tracked campaign: SearchJack second wave

Our analysis confirmed the behaviour described in the threat library entry. Read the analysis and indicators →

Also reported by malext.io

Chrome Web Store

Jumpstart Search

by [email protected] · 30.0K users
bdc0c75e-3958-503c-9a69-cb9b5d32c360 | v1.0.1
29/ 100
LOW risk
+18 since v1.0.0
Threat verdict
Do not install

Confirmed member of a tracked malicious supply-chain campaign.

Analysis record

Analysed
2 months ago
Version
v1.0.1
Artifact
SHA256 5ED…CD4
Source
Findings (non-IoC)

Evidence ledger

Ranked by severity · findings with a source location link to the code viewer

3 detail rows

YARA Rule Matches

2 rules
SeverityRuleHitsFilesMetadata
LOWpostinstall crypto operations 1
_metadata/verified_contents.json
-
LOWpostinstall system command 2
css/welcome.csscss/popup.css
-

Publisher Evidence

Limited evidence

[email protected]

Publisher identity, store signals, distribution reach, and warning signals used for context. Treat this as supporting evidence, not a clean bill of health.

Chrome does not expose the same publisher verification data as IDE stores, so this score is deliberately conservative.

35
Noisy-finding weight
x1.00
Publisher domain
No domain
Missing
Store verification signal
Limited signal
Limited
Extension portfolio
4
Portfolio

12 evidence rows available.

Finding Categories

3
IoC Indicators

YARA Rules Matched

2 rules(3 hits)
postinstall crypto operations postinstall system command

Security Analysis Summary

Security Analysis Overview

Jumpstart Search is a Chrome Web Store extension published by [email protected]. Version 1.0.1 has been analyzed by the Risky Plugins security platform, receiving a risk score of 29.03/100 (LOW risk) based on 6 security findings.

Risk Assessment

This extension presents low security risk. Some minor findings were detected, but nothing that would prevent typical usage. Reviewing the detailed findings below is recommended before use in sensitive environments.

Findings Breakdown

  • Medium: 3 finding(s)
  • Low: 3 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

  • Malware Detection: YARA rule matching against 2,400+ malware signatures
  • Secret Detection: Scanning for exposed API keys, tokens, and credentials
  • Static Analysis: Code-level security analysis for common vulnerability patterns
  • Network Analysis: Detection of suspicious network communications and endpoints
  • Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

Jumpstart Search is published by [email protected] on the Chrome Web Store marketplace. The extension has approximately 30K users.

Recommendation

Based on the automated security analysis, this extension appears safe for general use. As with any extension, users should review the requested permissions before installation.

Chrome version history

Risk trend by version

2 analyzed versions. Each point is the latest successful scan for that version; failed zero-score scans are hidden. Dates are based on first seen by risky plugins.

Selected
29
Change since first
+18
Change from previous
+18
Versions:
First analyzed version
1.0.0
Jun 23, 2026
Risk range
12 to 29
Across analyzed versions
Latest analyzed version
1.0.1
Aug 23, 2026
Selected version
low
Version
v1.0.1
2 months ago
Risk score
29
Findings
6
Change vs previous
+18

Pick any point on the chart to explore that version's code below.

About This Extension

Jumpstart Search powers your address bar: type your query in the omnibox, hit Enter, and get results powered by Yahoo — fast, simple, zero setup. 🔍 WHAT IT DOES • Sets Yahoo as your browser's default search engine • Search suggestions as you type • Works instantly from the address bar — no new UI to learn ⚡ HOW TO USE IT 1. Click the address bar (or press ⌘L / Ctrl+L) 2. Type your search 3. Hit Enter — that's it 🔒 PRIVATE BY DESIGN No accounts, no tracking by this extension, no data collected by the developer. The extension only registers the search provider — your queries go directly from your browser to Yahoo. ↩️ EASY TO UNDO You stay in control: change your search engine back anytime at chrome://settings/searchEngines. 🧩 COMPLETE THE SET Pair it with Jumpstart Newtab — a beautiful, modular new-tab dashboard with search, shortcuts, weather, daily quotes and the Jumpstart Runner mini-game. Privacy Policy: https://jumpstarthome.com/privacy-policy/ Terms and conditions: https://jumpstarthome.com/terms-and-conditions/

Frequently Asked Questions