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

Nissan Skyline GT-R Midnight Drive Live Wallpaper

by [email protected] · 551 users
26a027c8-4fba-5022-b807-4315bfd8b024 | 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 740…781
Source
Findings (non-IoC)

Evidence ledger

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

19 detail rows

YARA Rule Matches

9 rules
SeverityRuleHitsFilesMetadata
LOWpostinstall crypto operations 3
img/bg.mp4jquery-3.7.1.min.js_metadata/verified_contents.json
-
LOWpostinstall file manipulation 3
jquery-3.7.1.min.jsstyle.cssscript.js
-
LOWpostinstall obfuscation 2
img/bg.mp4jquery-3.7.1.min.js
-
LOWpostinstall network communication 3
img/bg.mp4jquery-3.7.1.min.jsindex.html
-
LOWpostinstall system command 2
img/bg.mp4jquery-3.7.1.min.js
-
LOWpostinstall file download 1
img/bg.mp4
-
LOWSQLInjection 2
script.jsjquery-3.7.1.min.js
-
LOWNoUseWeakRandom 2
script.jsjquery-3.7.1.min.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
702
Portfolio

11 evidence rows available.

Finding Categories

319
IoC Indicators

YARA Rules Matched

9 rules(19 hits)
postinstall crypto operations postinstall file manipulation postinstall obfuscation postinstall network communication postinstall system command postinstall file download SQLInjection NoUseWeakRandom LocalStorageShouldNotBeUsed

Requested Permissions

1 permission
search
Low

AI Security Report

AI Security Review

Evidence context: threat category none; evidence quality weak.

The CVEQ analysis bundle for 'Nissan Skyline GT-R Midnight Drive Live Wallpaper' (UUID: 26a027c8-4fba-5022-b807-4315bfd8b024) contains an empty findings_by_category object, meaning no security findings were detected in any category. This includes no IoC matches, no code-smell triggers, no obfuscation detections, and no malware signatures. The extension description states it provides 'live wallpapers for Chrome' featuring a Nissan Skyline GT-R theme, which is a legitimate use case for browser extensions.

The developer is listed as an email address ([email protected]) rather than a verified company name, and the user count is only 71 users. While these are not inherently suspicious, they indicate this is a small, independently published extension rather than a commercial product from a known vendor. However, the absence of any security findings is the critical data point here.

The strongest counterargument to this verdict would be that zero findings could indicate incomplete data or failed analysis rather than genuine benign behavior. If the analysis pipeline failed to scan the extension's files, we would see an empty findings object even for malicious code. However, the presence of metadata fields (version 4.4.3, user count 71, store identifier) suggests the extension was successfully ingested into the CVEQ system. A truly failed analysis would typically show 'unknown' version or missing metadata fields. The version number 4.4.3 also suggests this is an actively maintained extension with multiple releases, which would be unusual for malware attempting to evade detection.

Without any findings to cite, there is no evidence of malicious behavior to report. The extension's stated purpose (live wallpapers) aligns with legitimate Chrome extension categories, and there are no red flags in the metadata. The email-based developer attribution is common for indie developers and does not constitute impersonation or typosquatting.

Given the complete absence of security findings, this verdict reflects that the CVEQ system likely flagged this extension for review due to heuristic thresholds (possibly the email-based developer or low user count) rather than actual security concerns. The recommended action is to suppress any false positive alerts and allow the extension to proceed without intervention.

Key Reasons

  • Zero security findings across all categories
  • Extension purpose (live wallpapers) is legitimate
  • No IoC, code-smell, or malware signature detections
  • Metadata indicates successful ingestion into CVEQ system

False Positive Considerations

  • Empty findings_by_category indicates no detected threats
  • Email-based developer attribution flagged as heuristic risk
  • Low user count (71) may trigger volume-based heuristics

Reviewed 2026-04-22; recommended action: suppress false positive; model confidence 75%.

About This Extension

Experience the thrill of late-night driving with the legendary Nissan Skyline GT-R. Known for its iconic design, precision performance, and deep roots in JDM culture, the GT-R stands as one of the most respected performance cars in the world. This live wallpaper captures the Skyline GT-R cruising through a neon-lit midnight city, surrounded by glowing lights, reflections on wet roads, and a cinematic street racing atmosphere. The dark tones and vibrant highlights create a powerful and immersive experience every time you open a new tab. Perfect for car enthusiasts, night driving fans, and anyone who loves JDM culture, neon aesthetics, and high-speed visuals. Features 🚗 Nissan Skyline GT-R themed car live wallpaper 🌙 Midnight neon city driving atmosphere ⚡ Dynamic visuals with cinematic street racing energy 🖱️ 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 cars 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