Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Denji Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's own generic policy — not scoped to this extension, admits data collection and 3rd-party sharing.
• New-tab override with uninstall+install URL hijack to dev site — classic monetization/traffic shell pattern.
• Uninstall URL hijack (+3.0 webstore signal) redirects user to developer landing page.
• Install URL hijack (+2.0 webstore signal) opens third-party URL on install.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html — replaces every new tab for all users.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/denji-of-chainsaw-man-live-wallpaper/?utm_source=extension&utm_medium=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/denji-of-chainsaw-man-live-wallpaper/?utm_source=extension&utm_medium=install
• privacy_policy_generic store Policy URL is Google's account privacy policy — scope_extension=false, data_collection=true, third_party_sharing=true → +10.0 privacy.
• dom_xss_sink crx js/calendar.js: innerHTML assigned from variable; no CSP present, elevates to +2.0 code quality.
• developer_name_missing store developer_name is empty string; verified_publisher=true partially mitigates but identity disclosure is weak.
• verified_publisher store verified_publisher=true; grants -3.0 reputation base discount, floor 2.0 applied.
• search_permission_newtab_combo manifest search permission + newtab override = new-tab monetization via search replacement pattern.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Denji Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.14 -> 7.64 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Can read/modify search engine settings; paired with newtab override raises monetization concern.
• alarms low Schedules background tasks; low standalone risk.
• storage low Persists local data; low risk.
• chrome_url_overrides.newtab medium Replaces new-tab page; high daily user exposure, common monetization vector.
• host_permissions: https://api.gameograf.com/* low Scoped to own API domain; narrow, but enables data exfil to dev server.

Pillar Scores

Bookkeeping