Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Jump-Jump Proxy [browser-hijack] + malext.io malicious_extension_sentry (+2.5, capped).
• proxy permission routes all browser traffic through turbotunnel.space — unknown operator, free-webmail dev, no verified identity.
• Privacy policy is Google's own policy (not scoped to this extension); admits data collection and third-party sharing — worst-case privacy disclosure.
• Install URL hijack opens turbotunnel.space on install; combines with app.myxavpn.pro and t.me contacts — opaque backend infrastructure.
• JS contacts 4 countries (CA, NL, RU, US) including Russia-hosted infra — geo-diversity risk for a proxy tool.

Evidence

• proxy_permission manifest proxy permission declared — can redirect all browser traffic to any server; critical capability.
• install_url_hijack crx onInstalled opens https://turbotunnel.space/ — 3rd-party install redirect to unknown proxy operator.
• privacy_policy_generic store Privacy policy is Google account policy (479KB); scope_extension=false, data_collection=true, third_party_sharing=true.
• free_webmail_no_dev_name store Developer email kristi.tis@gmail.com; developer_name empty; no verified publisher badge.
• js_external_hosts crx Extension contacts app.myxavpn.pro, turbotunnel.space, t.me in addition to DNS providers.
• geo_diversity api JS hosts span 4 countries: CA, NL, RU, US. RU-hosted infra for a proxy tool is elevated risk.
• install_perm_anomaly api 141 installs with high-tier proxy permission — small-install high-perm tail attack surface flag.
• no_csp manifest content_security_policy is null on MV3 — no explicit CSP hardening despite network-sensitive function.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Jump-Jump Proxy [browser-hijack] + malext.io malicious_extension_sentry; score 5.46 -> 7.96 (+2.5 cap 2.5).

Permissions Breakdown

• proxy high Can reroute all browser traffic through attacker-controlled servers; highest-impact single permission.
• https://cloudflare-dns.com/* medium Host access to DNS-over-HTTPS provider; allows DNS query interception/logging.
• https://dns.google/* medium Host access to Google DNS-over-HTTPS; same DNS interception surface.

Pillar Scores

Bookkeeping