Security Alert: Confirmed Malware

This extension was removed from the Chrome Web Store as malware. Do not install it.Extension: Yoba Adblocker

CRITICAL RISKRemoved from Chrome Web Store

Yoba Adblocker

ID: klapabjimnakejfmpdolgamfplaondck

Could be malicious

Extension Info & Metadata

Status

Removed

Version

1.3.9

Size

0.43 MB

Rating

3.0/5

Reviews

Users

198,171

Type

Extension

Updated

Nov 23, 2020

Publisher Contextual Analysis

Author: Theresa JacksonView Profile
MX records exist: Yes
Domain exists: Yes
Is disposable: No
Is role-based: No
Mailbox exists: Yes

Total Extensions

Active

Obsolete

Listed

Unlisted

Total Users

198,171

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Filter out ads, no exceptions

Yoba Adblocker - is adblocking software. Made for millennials by millennials! Adblocking should no be boring Features: - No setup required - Automatic location-based filters - Works on all kinds of ads

User Growth

No data available

No user growth data available for this extension

Rating Count

No data available

No rating count data available for this extension

Average Rating

No data available

No rating data available for this extension

Extracted Data

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By severity

Critical2

High6

Medium4

Low0

Versions scanned

Showing 1 of 2 scanned versions with more than one unique finding. Counts are unique findings that include each version.

Extension Version	Code Review Findings
1.3.8 Code review	12

Extension Version	Code Review Findings
1.3.8	12

Files with findings

3 distinct paths — top paths by unique finding count:

background.js7
content.js3
popup.html2

S.No.	Category	Severity	File	Summary	Found in Version
1	Network Interception	critical	background.js (line 8013)	The extension hardcodes its subscription and notification URLs to operator-controlled domains (`rules.easyadblocker.com`, `cdn.easyadblocker.com`) rather than official Adblock Plus servers. This gives whoever controls…	1.3.8
2	Network Interception	critical	background.js (line 13372)	This `webRequestBlocking` listener injects arbitrary `Content-Security-Policy` HTTP response headers into every main and sub-frame response across all websites. The injected CSP value (`cspMatch.csp`) is sourced from …	1.3.8
3	Code Injection	high	content.js (line 1291)	The content script serializes a full function body into a Blob, creates an object URL from it, and injects it as a `<script>` element directly into every page's `document.documentElement`. This executes attacker-contr…	1.3.8
4	Code Injection	high	content.js (line 1108)	The `injectIntoContentWindow` function calls `contentWindow.eval()` to inject a dynamically assembled code string into every iframe's JavaScript context. By intercepting the `contentWindow` and `contentDocument` prope…	1.3.8
5	Code Injection	high	content.js (line 1101)	This content script injects code into page-controlled `contentWindow` objects and executes it with `eval`. Executing extension-generated code inside every visited page is a strong code-injection pattern that crosses t…	1.3.8
6	Phishing	high	background.js (line 10791)	The extension opens new tabs to URLs supplied by the active notification payload. Combined with the remote notification feed, this allows a backend-controlled message to drive users to arbitrary destinations, which is…	1.3.8
7	Tracking	high	background.js (line 10194)	The notification system fetches JSON from the operator-controlled `cdn.easyadblocker.com/notification.json` and can deliver targeted messages to specific users based on their locale, Chrome version, total ads blocked,…	1.3.8
8	Unauthorized Data Collection	high	background.js (line 10428)	Every filter-list and notification download appends detailed browser fingerprint parameters — addon name/version, browser name/version, OS platform, and download frequency count — as query parameters to requests sent …	1.3.8
9	Network Interception	medium	background.js (line 10619)	This listener intercepts essentially all subresource requests across all sites and can cancel them before they reach the network. That is expected for an ad blocker, but it is still a high-privilege network-intercepti…	1.3.8
10	Remote Code Loading	medium	popup.html (line 1)	The popup pulls a stylesheet directly from a third-party CDN at runtime instead of packaging all UI assets locally. Remote resources in extension pages let an external party alter the extension UI or track extension u…	1.3.8
11	Remote Code Loading	medium	background.js (line 10136)	The extension periodically downloads and trusts remote JSON from `Prefs.notificationurl` (`https://cdn.easyadblocker.com/notification.json`) to control in-extension notifications. Even though it is data rather than ra…	1.3.8
12	Tracking	medium	popup.html (line 1)	The extension's popup page loads a CSS stylesheet from an external CDN (`cdnjs.cloudflare.com`) every time the popup is opened. This causes an outbound HTTP request to a third-party server that can log extension popup…	1.3.8

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URLs

IPv4

IPv6

URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

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rules.easyadblocker.com	/easylist.txt	https://rules.easyadblocker.com/easylist.txt
easylist.to	-	https://easylist.to/
rules.easyadblocker.com	/abpindo+easylist.txt	https://rules.easyadblocker.com/abpindo+easylist.txt
abpindo.blogspot.com	-	http://abpindo.blogspot.com/
rules.easyadblocker.com	/abpvn+easylist.txt	https://rules.easyadblocker.com/abpvn+easylist.txt
abpvn.com	-	http://abpvn.com/
rules.easyadblocker.com	/bulgarian_list+easylist.txt	https://rules.easyadblocker.com/bulgarian_list+easylist.txt
stanev.org	/abp/	http://stanev.org/abp/
rules.easyadblocker.com	/easylistchina+easylist.txt	https://rules.easyadblocker.com/easylistchina+easylist.txt
abpchina.org	/forum/	http://abpchina.org/forum/

Showing 1 to 10 of 60 rows

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No IP addresses found

4.5 out of 5 · 4 most recent reviews

Text reviews

Positive

Negative

Wow!! Superb!!!!!🌟

Anna D Floyd·14 Jan 2021

Thank u guys 😛

Lucas Morris·14 Jan 2021

Thank u guys ��

Lucas Morris·14 Jan 2021

Version History

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Code Diff

Compare extension code between any two versions.

0 changed files detected

No comparable text files found between these versions.

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Browse and explore files within this extension package

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Security Alert: Confirmed Malware

Yoba Adblocker

Extension Info & Metadata

Publisher Contextual Analysis

Chrome Web Store Metadata

About this extension

Analytics & Metrics

User Growth

Rating Count

Average Rating

Static Code Security Analysis

Extracted Data

Code Review Findings Summary Across 2 Versions12

Versions scanned

Files with findings

Extracted Indicators (URLs and IPs)

URLs

Contextual Analysis

User Reviews

Version History

Version-to-Version Code Diff

Code Diff

Extension Files

User Growth

Rating Count

Average Rating

User Reviews