Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Miku Chibi Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Uninstall URL hijacked to owhit.com — classic monetization/tracking shell pattern.
• Install URL also hijacked to owhit.com; developer captures install/uninstall lifecycle events.
• Privacy policy is Google's own policy — scope_extension==false; does NOT cover this extension.
• NewTab override + search permission: every new tab monetization surface with no transparent data policy.

Evidence

• uninstall_url_hijack manifest chrome.runtime.setUninstallURL → https://owhit.com/uninstall (3rd-party tracking on removal)
• install_url_hijack manifest onInstalled opens https://owhit.com/miku-chibi-wallpaper (3rd-party URL on install)
• newtab_override manifest chrome_url_overrides.newtab = index.html; hijacks every new tab page for all users.
• generic_privacy_policy store Policy URL is Google's own account policy; scope_extension=false, data_collection=true, third_party_sharing=true.
• free_webmail_no_dev_name store Developer email is dermanseven32@gmail.com; developer_name is empty; no business domain.
• js_external_hosts crx Extension references chatgpt.com, instagram.com, netflix.com, youtube.com, x.com — broad unrelated origins.
• verified_publisher store verified_publisher=true but developer_name empty and email is free webmail; verification value limited.
• no_csp manifest content_security_policy is null; MV3 provides defaults but no explicit hardening declared.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Miku Chibi Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.59 -> 8.09 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/overriding search queries; typical for NewTab monetization shells.
• chrome_url_overrides.newtab high Hijacks every new tab; primary surface for ad-monetization injection.

Pillar Scores

Bookkeeping