Security Alert: Confirmed Malware

This extension was removed from the Chrome Web Store as malware. Do not install it.Extension: Ultimate AdBlocker - best blocker for Chrome

CRITICAL RISKRemoved from Chrome Web Store

Ultimate AdBlocker - best blocker for Chrome

ID: gmdffbblaahnjmpcjaenakkdplibibge

Could be malicious

Extension Info & Metadata

Status

Removed

Version

2.2.6

Size

0.70 MB

Rating

4.5/5

Reviews

Users

149,351

Type

Extension

Updated

Jan 14, 2021

Publisher Contextual Analysis

Author: Ultimate AdBlockView 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

149,351

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#1 Chrome adblock extension. Make the your web cleaner!

No more annoying interruptions on video sites like YouTube, Vimeo or any other videos hostings. Also stop advertisements on all websites including the most popular social networks Facebook, Twitter, VK and others. Shop your favorite sites and play online games without ads taking over your screen. The extension designed for Chrome browser - is fast, sleek, and secure for every users. Block bad ads and stop advertisers from tracking your every move. Surf the web stress-free by keeping your browsing private. Our target is to create a product that makes your everyday life a little easier.

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

Critical1

High5

Medium1

Low0

Versions scanned

Showing 1 of 5 scanned versions with more than one unique finding. Counts are unique findings that include each version.

Extension Version	Code Review Findings
2.2.5 Code review	7

Extension Version	Code Review Findings
2.2.5	7

Files with findings

4 distinct paths — top paths by unique finding count:

lib/easyadblock.js3
include.preload.js2
manifest.json1
popup.html1

S.No.	Category	Severity	File	Summary	Found in Version
1	Code Injection	critical	include.preload.js (line 1332)	The content script directly calls eval() on the contentWindow of every iframe and frame it encounters, injecting a serialized function string into child window contexts. This cross-origin code injection via eval is ex…	2.2.5
2	Code Injection	high	manifest.json (line 36)	The manifest explicitly sets a Content Security Policy that includes 'unsafe-eval', relaxing the default CSP that would prevent eval() and related dynamic code execution APIs. This creates a significant attack surface…	2.2.5
3	Code Injection	high	include.preload.js (line 1584)	This code serializes the entire injected function to a string, wraps it in a Blob, creates an object URL from it, and injects it as a script element into every page the user visits. Creating executable code from a Blo…	2.2.5
4	Remote Code Loading	high	popup.html (line 9)	The popup loads a CSS stylesheet over plain HTTP (not HTTPS) from allfont.ru, a third-party Russian font service. A plain HTTP request can be intercepted via MITM to inject malicious CSS or JavaScript into the extensi…	2.2.5
5	Remote Code Loading	high	lib/easyadblock.js (line 777)	The extension subscribes to filter lists and a notification feed hosted on domains (rules.easyadblocker.com, cdn.easyadblocker.com) controlled exclusively by the extension author, rather than well-known community-main…	2.2.5
6	Remote Code Loading	high	lib/easyadblock.js (line 4778)	The extension periodically polls https://cdn.easyadblocker.com/notification.json and parses the JSON response, storing it in persistent preferences and triggering notification display. This is an unverified remote com…	2.2.5
7	Unauthorized Data Collection	medium	lib/easyadblock.js (line 4303)	On subscription download failure, the extension silently makes an XHR to a fallback URL that encodes the subscription URL, download URL, error details, channel status, and HTTP response status as query parameters. Whi…	2.2.5

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URLs

140

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 140 rows

Rows per page:

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2.3.3.3	IPv4	-
2.3.3.1	IPv4	-
1.3.14.3	IPv4	-

4.0 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

this no just no cause it only blocked barely some of the vid adds so no no dont install

Siren Head But not·24 Feb 2021

it would be nice if it could block ads for some others sites.

me·19 Feb 2021

buena app

Mr. Alister·7 Feb 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

Ultimate AdBlocker - best blocker for Chrome

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 5 Versions7

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