Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Biker Girl in a Neon World Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new-tab page, creating persistent monetization/tracking surface
• Uninstall URL hijack sends user to gameograf.com on removal (tracking/remarketing)
• Install URL hijack opens gameograf.com on install (engagement funnel)
• No developer name listed; reduces accountability

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/?p=33136?utm_source=extension&utm_medium=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/?p=33136?utm_source=extension&utm_medium=install
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit CSP hardening.
• dom_xss_sink crx js/calendar.js: innerHTML assigned from variable without sanitization.
• no_developer_name store developer_name is empty string; reduces attribution and accountability.
• verified_publisher store Extension has verified_publisher=true; partially offsets reputation concerns.
• privacy_policy_scoped api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Biker Girl in a Neon World Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.66 -> 5.16 (+2.5 cap 2.5).

Permissions Breakdown

• alarms low Schedules background tasks; low direct risk.
• storage low Local data persistence; low risk.
• chrome_url_overrides.newtab high Replaces every new tab page; high monetization/tracking surface.
• search medium Can query and potentially override search behavior; medium risk on its own.
• host_permissions: https://api.gameograf.com/* medium Scoped to developer's own API; acceptable but enables data exfil to that endpoint.

Pillar Scores

Bookkeeping