Tracked campaign: Gameograf / Ovkas wallpaper adware

Our analysis confirmed the behaviour described in the threat library entry. Read the analysis and indicators →

Also reported by raw.githubusercontent.com

Chrome Web Store

One Piece Black And White With Luffy's Crew Live Wallpaper

by [email protected] · 58 users
683845a2-aa7f-5c82-9716-4efe7a93e7ca | v4.4.3

Marketplace listing not found

Our last marketplace check could not find this listing in Chrome Web Store. It may have been removed or delisted. Existing installs may still run, but verify the publisher and package source before installing or updating.

Not found on Today
43/ 100
MEDIUM risk
Threat verdict
Do not install

Confirmed member of a tracked malicious supply-chain campaign.

Analysis record

Analysed
7 months ago
Version
v4.4.3
Artifact
SHA256 878…AB8
Source
Findings (non-IoC)

Evidence ledger

Ranked by severity · findings with a source location link to the code viewer

16 detail rows

YARA Rule Matches

8 rules
SeverityRuleHitsFilesMetadata
LOWpostinstall crypto operations 2
_metadata/verified_contents.jsonjquery-3.7.1.min.js
-
LOWpostinstall file manipulation 3
script.jsjquery-3.7.1.min.jsstyle.css
-
LOWpostinstall obfuscation 1
jquery-3.7.1.min.js
-
LOWpostinstall network communication 3
index.htmlimg/bg.mp4jquery-3.7.1.min.js
-
LOWpostinstall system command 2
img/bg.mp4jquery-3.7.1.min.js
-
LOWSQLInjection 2
jquery-3.7.1.min.jsscript.js
-
LOWNoUseWeakRandom 2
jquery-3.7.1.min.jsscript.js
-
LOWLocalStorageShouldNotBeUsed 1
script.js
-

Publisher Evidence

Limited evidence

[email protected]

Publisher identity, store signals, distribution reach, and warning signals used for context. Treat this as supporting evidence, not a clean bill of health.

Chrome does not expose the same publisher verification data as IDE stores, so this score is deliberately conservative.

43
Noisy-finding weight
x1.00
Publisher domain
No domain
Missing
Store verification signal
Limited signal
Limited
Extension portfolio
729
Portfolio

11 evidence rows available.

Finding Categories

313
IoC Indicators

YARA Rules Matched

8 rules(16 hits)
postinstall crypto operations postinstall file manipulation postinstall obfuscation postinstall network communication postinstall system command SQLInjection NoUseWeakRandom LocalStorageShouldNotBeUsed

Requested Permissions

1 permission
search
Low

AI Security Report

AI Security Review

Evidence context: threat category pup; evidence quality moderate.

This Chrome extension presents significant risk indicators despite lacking malware signatures. The extension 'One Piece Black And White With Luffy's Crew Live Wallpaper' by developer [email protected] contains 369 IoC findings, all classified as medium-severity domain detections.

The IoC domains exhibit clear adware/pup patterns: ovkas.com, d.gi, h.tk, c.th, s.lv, q.tc, y.mn, h.dm, xj.eu, q.km, and r.py. These domains share characteristics inconsistent with legitimate content delivery: short random subdomains (d., h., c., s., q., y.), unusual TLDs (.tk, .dm, .km, .py, .mn, .th, .tc, .lv, .gi), and one domain containing a non-ASCII character (铔lf.ie). These do not match known CDN patterns like googleapis.com, gstatic.com, or cloudflare.com that would be expected for a legitimate wallpaper extension.

The extension claims to provide 'live wallpapers' for Chrome, which is technically unusual since Chrome does not natively support live wallpapers. This functionality typically indicates a new tab page replacement or overlay mechanism—common PUP techniques used to inject advertisements or redirects.

The developer attribution is a generic Gmail address ([email protected]) with no company verification, and the extension has only 12 users. The 16 code-smell findings are low-severity and represent expected noise from standard JavaScript patterns, not malicious behavior. Counterargument: A skeptic could argue that 369 IoCs might stem from bundled dependencies or legitimate content delivery networks. However, this explanation fails because the detected domains do not match any known CDN infrastructure, analytics services, or legitimate content providers. The domain pattern—random subdomains paired with high-risk TLDs like .tk and .dm—is characteristic of adware distribution networks, not legitimate software dependencies. The absence of malware signatures does not rule out PUP behavior; many potentially unwanted programs distribute ads and redirects without triggering traditional malware YARA rules. The evidence points to adware/pup functionality rather than confirmed malware, warranting a confirmed_risk verdict.

Key Reasons

  • 369 suspicious IoC domains with unusual TLDs (.tk, .dm, .km, .py)
  • Random subdomain pattern (d., h., c., s., q., y.) indicates adware infrastructure
  • Generic Gmail developer address with no company attribution
  • Chrome live wallpaper functionality is technically unusual and suggests overlay/hijack

False Positive Considerations

  • code-smell findings are expected noise
  • no malware signatures present

Reviewed 2026-04-28; recommended action: escalate; model confidence 78%.

About This Extension

Enter the legendary world of One Piece with this striking black and white themed live wallpaper featuring Monkey D. Luffy and the Straw Hat Pirates. Known for their unbreakable friendship, daring adventures, and dream of freedom, Luffy and his crew have become some of the most iconic characters in anime history. This live wallpaper captures the entire crew in a dramatic black and white style, highlighting their unique personalities and powerful presence. The monochrome aesthetic combined with strong anime visuals creates a bold and stylish atmosphere every time you open a new tab. Perfect for One Piece fans who appreciate classic anime style, iconic characters, and the legendary journey of the Straw Hat Pirates. Features 🏴‍☠️ Luffy and Straw Hat crew themed live wallpaper ⚫ Stylish black and white anime aesthetic ⚡ Dynamic visuals inspired by One Piece 🖱️ Shortcut links, date and time on the new tab 🔗 Quick access site shortcuts 🔍 It searches using the search engine selected by the user 📌 Provided more extension 🚀 Fuel Your Screen with Action-Packed Anime & High-Speed Rides! 🚀 From anime heroes to legendary characters and iconic worlds, Ovkas.com delivers premium live wallpapers designed to transform your Chrome new tab into an immersive visual experience. 💥 Want even more? Head to the Chrome Web Store, type "ovkas", and explore more anime, gaming, and aesthetic live wallpapers. ✨ Visit Ovkas.com and bring your digital world to life today! ✨ Google Chrome Affiliate Program Disclosure This extension, when installed, opens the ovkas.com website in your new tab to provide information about the downloaded extension. It is designed to enhance user experience, offer access to similar extensions, and help users create their own. The extension may contain links to specific services or products per policy. All redirects are designed for user benefit and require consent before any action is taken.

Frequently Asked Questions