Security Alert: Confirmed Malware

This extension was removed from the Chrome Web Store as malware. Do not install it.Extension: Unseen - Chat Privacy

CRITICAL RISKRemoved from Chrome Web Store

Unseen - Chat Privacy

ID: egmlbimojingfmchokcniklnhnecdecf

Could be malicious

Supported Languages

🇪🇹Amharic

🇸🇦Arabic

🇧🇩Bengali

🇧🇷Brazilian Portuguese

🇬🇧British English

🇧🇬Bulgarian

🇪🇸Catalan

🇨🇳Chinese (Simplified)

🇹🇼Chinese (Traditional)

🇭🇷Croatian

🇨🇿Czech

🇩🇰Danish

🇳🇱Dutch

🇺🇸English

🇪🇪Estonian

🇵🇭Filipino

🇫🇮Finnish

🇫🇷French

🇩🇪German

🇬🇷Greek

🇮🇳Gujarati

🇮🇱Hebrew

🇮🇳Hindi

🇭🇺Hungarian

🇮🇩Indonesian

🇮🇹Italian

🇯🇵Japanese

🇮🇳Kannada

🇰🇷Korean

🇲🇽Latin American Spanish

🇱🇻Latvian

🇱🇹Lithuanian

🇲🇾Malay

🇮🇳Malayalam

🇮🇳Marathi

🇳🇴Norwegian

🇮🇷Persian

🇵🇱Polish

🇵🇹Portuguese

🇷🇴Romanian

🇷🇺Russian

🇷🇸Serbian

🇸🇰Slovak

🇸🇮Slovenian

🇪🇸Spanish

🇰🇪Swahili

🇸🇪Swedish

🇮🇳Tamil

🇮🇳Telugu

🇹🇭Thai

🇹🇷Turkish

🇺🇦Ukrainian

🇺🇸US English

🇻🇳Vietnamese

Extension Info & Metadata

Status

Removed

Version

4.1.5

Size

0.15 MB

Rating

3.7/5

Reviews

719

Users

20,000

Type

Extension

Updated

Jan 20, 2026

Publisher Contextual Analysis

Author: Delete All PostsView Profile
Privacy: Privacy Policy
Help: Help Center
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

20,000

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Hides the ”Seen” feature from Facebook™ chat and Messenger of your friends. Blocks Delivery receipts...

Now your friends will not know have you read their messages or not. This Unseenly extension: Block the ”Seen” feature Block the "Delivery receipts" feature Block "Last active" indicator Block the "Typing..." indicator Unseenly app works on facebook.com, m.facebook.com and also on messenger.com. Use Fb Unseen when necessary and easily turn it off in the menu, if you do not want to hide your actions. Keep your privacy with Facebook Unseen. Functionality: * Providing More Extensions in the Popup Window* * When the extension is updated, a page opens displaying information about the changes *

User Growth

Showing data from Jan 01, 2022 to Dec 31, 2022

Versions

No change in user count

Compared to 3 months ago

1 version released in this period

Rating Count

Total: 654 ratings

Average Rating

Current: 3.84 / 5.0-0.10

Extracted Data

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By severity

Critical2

High4

Medium0

Low0

Versions scanned

Showing 1 of 28 scanned versions with more than one unique finding. Counts are unique findings that include each version.

Extension Version	Code Review Findings
4.1.5 Code review	6

Extension Version	Code Review Findings
4.1.5	6

Files with findings

1 distinct path — top paths by unique finding count:

background.js6

S.No.	Category	Severity	File	Summary	Found in Version
1	Data Exfiltration	critical	background.js (line 125)	Every tab URL the user visits is captured, reduced to its origin, and POSTed to an obfuscated third-party endpoint (`cloud.sky4data.com/social.json`) along with an extension-generated UID. This is covert per-visit bro…	4.1.5
2	Privilege Escalation	critical	background.js (line 194)	Server-controlled tab-opening primitive: the remote C2 response controls the URL, whether the tab is foregrounded, and a delay before the extension silently closes the tab. This is a classic affiliate/ad-fraud or clic…	4.1.5
3	Data Exfiltration	high	background.js (line 155)	Generic POST-to-obfuscated-URL helper used for all C2 calls. It sends JSON payloads containing the installation UID and visited origins to endpoints decoded at runtime by r.abroad(), evading static URL discovery by re…	4.1.5
4	Network Interception	high	background.js (line 183)	Recursive follower that fetches an arbitrary URL given by the C2 server, parses meta-refresh / `location=` tokens out of the HTML, and follows up to 20 hops to resolve final affiliate/cloaking URLs before handing them…	4.1.5
5	Obfuscation	high	background.js (line 205)	Custom character-substitution cipher used to hide C2/endpoint URLs from static analysis. Decoding the obfuscated strings passed to r.abroad() reveals the hidden domain `https://cloud.sky4data.com/social.json` and `htt…	4.1.5
6	Tracking	high	background.js (line 142)	Hourly heartbeat (via setInterval 36e5) that POSTs the extension's persistent UID and version to `cloud.sky4data.com/info.json`. The server's response is again used to drive r.confidence (tab-creation). This is C2 che…	4.1.5

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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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jedwatson.github.io	/classnames	http://jedwatson.github.io/classnames
reactjs.org	/docs/error-decoder.html	https://reactjs.org/docs/error-decoder.html?invariant=
www.w3.org	/1999/xlink	http://www.w3.org/1999/xlink
www.w3.org	/XML/1998/namespace	http://www.w3.org/XML/1998/namespace
www.w3.org	/2000/svg	http://www.w3.org/2000/svg
www.w3.org	/1998/Math/MathML	http://www.w3.org/1998/Math/MathML
www.w3.org	/1999/xhtml	http://www.w3.org/1999/xhtml
fonts.googleapis.com	/css2	https://fonts.googleapis.com/css2?family=Roboto:wght@100;300;400;500;700;900&display=swap
tailwindcss.com	/n///n1.	https://tailwindcss.com\n//\n1.
github.com	/mozdevs/cssremedy/issues/4	https://github.com/mozdevs/cssremedy/issues/4

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No IP addresses found

2.8 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

unfortunately is not working.

Mahmood Gamal·21 Sept 2025

good

miguel angel duque salazar·2 Aug 2025

pls update , i miss "block last active" so much , its greater than any other extensions :(((

Nguyễn Hưng·24 Jul 2025

Version History

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Code Diff

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0 changed files detected

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Browse and explore files within this extension package

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Security Alert: Confirmed Malware

Unseen - Chat Privacy

Supported Languages

Extension Info & Metadata

Publisher Contextual Analysis

Chrome Web Store Metadata

Screenshots & Videos

About this extension

Analytics & Metrics

User Growth

Rating Count

Average Rating

Static Code Security Analysis

Extracted Data

Code Review Findings Summary Across 28 Versions6

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