Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Mclaren Sport Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Uninstall URL hijack to owhit.com — classic monetization/data-collection pattern.
• Install URL hijack to owhit.com — third-party landing page on every install.
• New-tab override with search permission: ad-monetization aggregator shape.
• Privacy policy is Google's own policy — not scoped to this extension; admits data collection + 3rd-party sharing.

Evidence

• uninstall_url_hijack manifest chrome.runtime.setUninstallURL targets https://owhit.com/uninstall — 3rd-party tracking on uninstall.
• install_url_hijack manifest onInstalled opens https://owhit.com/mclaren-sport-wallpaper — 3rd-party redirect on install.
• newtab_override manifest chrome_url_overrides.newtab = index.html replaces every new tab; combined with search perm = monetization shape.
• privacy_policy_generic store Policy URL is Google's account policy; scope_extension=false, data_collection=true, third_party_sharing=true.
• developer_identity_weak store Dev email tekbatuhan64@gmail.com (free webmail); developer_name empty; no business domain.
• js_external_hosts_broad crx JS references 8 external hosts incl. owhit.com, chatgpt.com, netflix.com, instagram.com, x.com.
• operator_cluster_uninstall_siblings api uninstall_url dimension shows sibling_count=2; same owhit.com uninstall URL used by other extensions.
• verified_publisher_low_trust store Verified publisher badge present but dev is free-webmail with no name; discount capped per v3.5 rule E.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Mclaren Sport Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.56 -> 8.06 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying browser search API; combined with newtab override raises monetization risk.
• chrome_url_overrides.newtab high Replaces every new tab with extension page; primary vector for ad/search monetization.

Pillar Scores

Bookkeeping