Chrome Web Store
2Versions
1Code reviewed

Caution required

Suspicious in code review (v1.2.1)

Our reviewer found behaviour consistent with malware in version 1.2.1, but not enough to confirm it. Treat this extension as untrusted until it has been re-reviewed.

13 indicators in this extension

13 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

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What our analysis found

TeaserFast, used by 50,000 people, is rated caution by Extension Auditor. Our code review reported 1 finding (1 high), led by other. It comes from a trusted publisher and was last updated in May 2024.

Key findings

  • High

    Other

    The bundled manifest version and permissions do not match the published manifest summary. The published listing states manifest v3, host_permissions: ['[domain withheld]'], and permissions: ['storage'], while the actual manifest is v2 with empty permissions and a content script matching all URLs. This mismatch misrepresents the extension's capabilities to users and violates CWS policy.

Analyst notes

The code appears to function as a legitimate pay-per-view advertisement extension, communicating only with the publisher's domain [domain withheld]. However, the bundled manifest (v2 with no permissions) significantly differs from the published CWS summary (v3 with host_permissions and storage). The content script injects into all URLs despite the published listing implying access limited to [domain withheld]. This discrepancy may be an error but raises suspicion about transparency.

TeaserFast

TeaserFast Chrome extension security report

ID: pjnejlbfaoikfmdbnghlecdcooheipml

Supported Languages

🇷🇺Russian

Extension Info & Metadata

Status
Active
Version
1.2.8
Size
0.05 MB
Rating
3.6/5
Reviews
476
Users
50,000
Type
Extension
Updated
May 8, 2024
Category
Workflow & planning
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
1extension
All still listed

Publisher Contextual Analysis

Trusted
Author
http://teaserfast.ru/
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
Yes
Mailbox exists
Yes
Website
Visit
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
50,000

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4

Install growth

Item
Type
Severity
Description
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
https://teaserfast.ru/*
Host
Medium
Host permission — access limited to this URL pattern.

13 indicators in this extension

13 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

About this extension

C помощью этого расширения вы можете зарабатывать реальные деньги за просмотр рекламы. Вывод денег на Payeer и Webmoney.

Read the publisher’s full description

Расширение периодически показывает рекламные Тизеры и рекламные сообщения с предложением просмотра сайта, пока вы пользуетесь браузером. За просмотр рекламы мы платим деньги, которые вы можете вывести на кошельки Payeer и Webmoney. Подробности на сайте - https://teaserfast.ru/earn/

User reviews

Extension files

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URLs
6

URLs

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No URLs found
No IP addresses found

13 indicators in this extension

13 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
1.2.1
Latest
0.04 MBCaution0N/A
1.2.8
0.05 MBNot scanned—
49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
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Code Diff

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0 changed files detected

No comparable text files found between these versions.

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