Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Yuuka Hayase Blue Archive Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Uninstall URL hijack redirects to gameograf.com ad campaign — confirmed monetization shell pattern.
• Install URL hijack on onInstalled fires 3rd-party ad URL immediately after install.
• NewTab override + search permission = search query monetization surface even with 16 installs.
• Free-webmail dev (gmail), no developer name, no verified publisher — unaccountable operator.

Evidence

• uninstall_url_hijack crx chrome.runtime.setUninstallURL points to gameograf.com UTM campaign — Webstore +3.0.
• install_url_hijack crx onInstalled opens gameograf.com UTM URL — Webstore +2.0.
• newtab_override manifest chrome_url_overrides.newtab = index.html; search permission also declared.
• free_webmail_no_devname store tamyssabillys@gmail.com, empty developer_name — Reputation floor applied at 7.5.
• js_external_hosts_broad crx 6 external hosts: gameograf.com, google.com, instagram.com, netflix.com, youtube.com, x.com.
• privacy_policy_scoped api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• csp_absent_mv3 manifest No explicit CSP declared; MV3 has strict default so no +2.0 Network penalty applied.
• fan_content_shell store Anime fan-content title wrapping gameograf monetization domain — shell pattern +1.5.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Yuuka Hayase Blue Archive Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.44 -> 6.94 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/manipulating search queries; combined with newtab override raises monetization risk.
• chrome_url_overrides.newtab high Replaces new-tab page; primary vector for search hijack and ad monetization.

Pillar Scores

Bookkeeping