Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Nissan Skyline GT-R R34 Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's generic policy — not scoped to this extension; admits data collection and 3rd-party sharing.
• NewTab override + install/uninstall URL hijack to gameograf.com — clear traffic-monetization shell pattern.
• Developer name is blank; no 'Offered by' identity despite verified_publisher claim.
• DOM-XSS sinks (innerHTML from variables) in calendar.js and popup.js with no CSP in place.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab with developer-controlled page.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?utm_source=gameograf&utm_medium=link&utm_campaign=bg.
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install — monetization redirect on install.
• generic_privacy_policy store Policy URL is Google's own privacy policy (myaccount.google.com); scope_extension=false, data_collection=true, third_party_sharing=true.
• no_developer_name store developer_name is empty string; no 'Offered by' identity visible despite verified_publisher=true.
• dom_xss_no_csp crx Two innerHTML-from-variable sinks in calendar.js and popup.js; csp_present=false amplifies XSS risk.
• js_external_hosts_broad crx 12 external JS hosts referenced including Google properties and youtube.com beyond stated wallpaper function.
• maintenance_stale api months_since_update=12 (6–12mo band); install count only 230 — low adoption, moderate staleness.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Nissan Skyline GT-R R34 Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.64 -> 8.14 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows modification of search provider; NewTab override amplifies search monetization risk.
• chrome_url_overrides.newtab high Replaces new-tab page; primary vector for traffic/ad monetization in wallpaper shells.
• host_permissions: https://api.gameograf.com/* medium Outbound calls to developer's own API; scoped but enables data exfiltration to dev server.

Pillar Scores

Bookkeeping