Security Alert: Confirmed Malware

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

CRITICAL RISKRemoved from Chrome Web Store

AdBlock Master

ID: ofmjepimahcfbmcdfbmeihkondkfeobh

Could be malicious

Supported Languages

🇧🇷Brazilian Portuguese

🇳🇱Dutch

🇺🇸English

🇫🇷French

🇩🇪German

🇮🇹Italian

🇪🇸Spanish

🇸🇪Swedish

Extension Info & Metadata

Status

Removed

Version

1.1.10

Size

0.02 MB

Rating

3.7/5

Reviews

Users

400,000

Type

Extension

Updated

Mar 14, 2024

Publisher Contextual Analysis

Trusted

Author: https://adblock-master.orgView Profile
Privacy: Privacy Policy
Help: Help Center
MX records exist: Yes
Domain exists: Yes
Is disposable: No
Is role-based: No
Mailbox exists: Yes
Website: Visit

Total Extensions

Active

Obsolete

Listed

Unlisted

Total Users

400,000

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We remove popups, ads and trackers on the most popular content sites and auto skip youtube ads.

What we do exactly : - Remove most annoying popups - Skip Youtube ads - Block most bad advertising - Block most trackers - We are not blocked by other adblockers Be conscious that we do not block all ads on the web, we keep some ads that we classify as relevant and less invasive. Our privacy policy is available here : https://theadblockmaster.com/privacy.html If you just want a quick summary: - No personal information is being logged with this extension - The only thing we log is how many ads we help you block and anonymously.

User Growth

Showing data from Feb 22, 2023 to Feb 21, 2024

Versions

No change in user count

Compared to 3 months ago

1 version released in this period

Rating Count

Total: 44 ratings+1 (2%)

Average Rating

Current: 3.66 / 5.0-0.24

Extracted Data

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By severity

Critical4

High6

Medium3

Low0

Versions scanned

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

Extension Version	Code Review Findings
1.1.10 Code review	5
1.0.17 Code review	8

Extension Version	Code Review Findings
1.1.10	5
1.0.17	8

Files with findings

4 distinct paths — top paths by unique finding count:

background.js7
res/sw.js4
content.js1
res/cs.js1

S.No.	Category	Severity	File	Summary	Found in Version
1	Code Injection	critical	res/sw.js (line 72)	The extension reads JavaScript source from storage and injects it directly into the page's main world on arbitrary sites. Because the storage values are remotely controlled elsewhere in the worker, this is effectively…	1.1.10
2	Code Injection	critical	background.js (line 220)	This function assembles and executes JavaScript sourced entirely from `chrome.storage.local` into every HTTPS page via `chrome.tabs.executeScript`. Because the remote server controls the contents of storage (via `upda…	1.0.17
3	Data Exfiltration	critical	background.js (line 147)	The extension polls a remote C2 endpoint at `https://theadblockmaster.com/json-control-wip.php`, sending a unique user ID (`uid`), browsing activity counters (`blockedads`, `gfi`, `fr`, `f`, `gf`), and extension metad…	1.0.17
4	Remote Code Loading	critical	background.js (line 125)	The `updateState` function unconditionally writes any key-value pair returned by the remote server into `chrome.storage.local`. Since `runAdblockScript` later reads arbitrary keys from storage and assembles them into …	1.0.17
5	Code Injection	high	background.js (line 214)	A `corefunction` script string is seeded into storage and injected into every page on load. While this particular seed value appears benign (CSS helpers), the remote server can overwrite `corefunction` at any time via…	1.0.17
6	Network Interception	high	res/sw.js (line 118)	This worker downloads dynamic network rules and redirect targets from a remote server, then installs them with `declarativeNetRequest`. A server-side change can silently alter which domains are intercepted and force t…	1.1.10
7	Network Interception	high	background.js (line 96)	The banlist is fetched from a remote server and used directly as URL match patterns in `chrome.webRequest.onBeforeRequest` with `{blocking: true}`. This gives the remote operator the ability to silently block any URL …	1.0.17
8	Other	high	background.js (line 19)	The `reset()` function, triggerable remotely by the server sending `{reset: true}` through the C2 channel, deletes all non-whitelisted storage keys and force-reloads every open tab. This serves as an evidence-destruct…	1.0.17
9	Tracking	high	content.js (line 17)	The content script intercepts every DevTools keyboard shortcut (F12/keyCode 123, Ctrl+Shift+I/J/C, Ctrl+U, Cmd+Alt+I/J/C/U) across all HTTPS pages and fires a telemetry event to the background. The background then cal…	1.0.17
10	Unauthorized Data Collection	high	res/sw.js (line 33)	This code serializes extension state into URL parameters and sends it to a remote domain, including identifiers and usage counters stored in `chrome.storage`. The response is treated as trusted configuration and can a…	1.1.10
11	Other	medium	res/sw.js (line 171)	Immediately after installation, the extension enumerates all open tabs and closes Chrome Web Store or Edge Add-ons listing pages. That is unusual for a legitimate blocker and appears intended to hide the store page or…	1.1.10
12	Other	medium	background.js (line 55)	On installation, the extension silently closes any open Chrome Web Store or Edge Add-ons tabs. This prevents the user from reading the extension's permissions review page, seeing other users' reviews warning about mal…	1.0.17
13	Tracking	medium	res/cs.js (line 3)	The content script runs on all pages at `document_start`, watches for developer-tools and view-source shortcut keys, and reports the current hostname back to the background worker. That behavior is not required for ad…	1.1.10

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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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chrome.google.com	/webstore/detail/	https://chrome.google.com/webstore/detail/
microsoftedge.microsoft.com	/addons/detail/	https://microsoftedge.microsoft.com/addons/detail/
clients2.google.com	/service/update2/crx	https://clients2.google.com/service/update2/crx

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No IP addresses found

2.1 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

Hello, I hope you're having a splendid day! I am currently seeking opportunities to expand my business operations by investing in extensions with a significant user base, beginning from 20,000 users and up. No matter if your extension has a modest user base or counts its users in the millions, I am interested and ready to negotiate a purchase. If you are in possession of such an extension and looking to turn it into a profit, please consider reaching out to me. We can discuss the price and proceed with a transparent and secure transaction through a trusted escrow service based in the United States. It's great that Google allows the transfer of extension ownership between accounts, so your Google account ownership will remain intact. If you have any needs, please contact us via the following contacts Whatsapp: +1 (248) 896‑8035 Telegram: t.me/harryysandersonn

Madison Francis·12 Aug 2024

Hello, I hope you're having a splendid day! I am currently seeking opportunities to expand my business operations by investing in extensions with a significant user base, beginning from 50,000 users and up. No matter if your extension has a modest user base or counts its users in the millions, I am interested and ready to negotiate a purchase. If you are in possession of such an extension and looking to turn it into a profit, please consider reaching out to me. We can discuss the price and proceed with a transparent and secure transaction through a trusted escrow service based in the United States. It's great that Google allows the transfer of extension ownership between accounts, so your Google account ownership will remain intact. If you have any needs, please contact us via the following contacts Whatsapp: +1 (248) 896‑8035 Telegram: t.me/harryysandersonn

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

AdBlock Master

Supported Languages

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 Versions13

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 Reviews

User Growth

Rating Count

Average Rating