Security Alert: Confirmed Malware

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

CRITICAL RISKRemoved from Chrome Web Store

NBlocker

ID: ocbcobiceiagblnejkcekbpgpakolhff

Could be malicious

Extension Info & Metadata

Status

Removed

Version

0.9.3

Size

0.60 MB

Rating

4.8/5

Reviews

Users

322,573

Type

Extension

Updated

Nov 11, 2020

Publisher Contextual Analysis

Author: Lizzie KochView 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

322,573

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Easy to use adblocker for your browser

Nblocker - is an ad block software. N means new. In Nblocker, we reimagined the traditional approach to adblocking. Features: ⭐ Well tuned ad-blocking filter lists based on your country or location. ⭐ No need for setup or tune - we enable all filters by default. ⭐ Whitelists: if you want to support some website, you can always disable ad-block on a domain level.

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

High3

Medium3

Low1

Versions scanned

Showing 2 of 3 scanned versions with more than one unique finding. Counts are unique findings that include each version.

Extension Version	Code Review Findings
0.9.2 Code review	4
0.9.1 Code review	5

Extension Version	Code Review Findings
0.9.2	4
0.9.1	5

Files with findings

5 distinct paths — top paths by unique finding count:

lib/easyadblock.js4
include.preload.js2
ext/background.js1
manifest.json1
subscriptions.xml1

S.No.	Category	Severity	File	Summary	Found in Version
1	Network Interception	critical	subscriptions.xml (line 1)	All 23 filter subscriptions (including EasyList, EasyPrivacy, and regional lists) have been hijacked to download from rules.easyadblocker.com instead of their official sources (easylist.to, abpindo.blogspot.com, etc.)…	0.9.1
2	Remote Code Loading	critical	ext/background.js (line 148)	This is an obfuscated Google Tag Manager bootstrapper that constructs and injects a remote script URL from the manifest CSP rather than referencing it directly. Because it runs in the persistent background page, the l…	0.9.2
3	Network Interception	high	lib/easyadblock.js (line 820)	All exception/whitelist rules, anti-adblock circumvention filters, and notification data are fetched from operator-controlled domains (rules.easyadblocker.com and cdn.easyadblocker.com) rather than official Adblock Pl…	0.9.1
4	Remote Code Loading	high	manifest.json (line 4)	The extension explicitly weakens its CSP to allow remote JavaScript origins such as Google Analytics and Google Tag Manager inside the extension context. In a Manifest V2 persistent background page, that defeats the n…	0.9.2
5	Remote Code Loading	high	lib/easyadblock.js (line 4966)	The extension polls `https://cdn.easyadblocker.com/notification.json` hourly (CHECK_INTERVAL = 1 hour, INITIAL_DELAY = 1 minute) and parses the JSON response into actionable notifications. When a user clicks a notific…	0.9.1
6	Code Injection	medium	include.preload.js (line 1327)	The content script injects code into page and frame contexts using `contentWindow.eval(...)`, which crosses the extension/page boundary and tampers with page-side JavaScript execution. That is an invasive code-injecti…	0.9.2
7	Code Injection	medium	include.preload.js (line 1584)	This routine builds a Blob-backed script and injects it directly into every HTML page context, rather than keeping logic inside the isolated extension world. Running page-context code on all matched sites is a high-ri…	0.9.2
8	Unauthorized Data Collection	medium	lib/easyadblock.js (line 6700)	The `setUninstallURL` function assembles a fingerprint of the user's browser environment (addon name/version, browser application/version, platform/version, notification download count) but the code as written builds …	0.9.1
9	Tracking	low	lib/easyadblock.js (line 816)	When subscription downloads fail, the extension sends detailed error telemetry (extension version, subscription URL, download URL, error type, channel status, HTTP response status) back to adblockplus.org. This is unc…	0.9.1

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URLs

139

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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1.3.14.3	IPv4	-
2.3.3.3	IPv4	-
2.3.3.1	IPv4	-

5.0 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

convenient extension, fully corresponds to the description, and most importantly, it does not slow down the system

Alejandro Mendoza·21 Mar 2021

Nice extension, works great.

Zulimbi Sarakhov·21 Mar 2021

good application, I advise everyone, thanks to the developers

Brian Greene·21 Mar 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

NBlocker

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 3 Versions9

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