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Hijacked

Lebih dari 25% Exit Relays Tor Memata-matai Aktivitas Dark Web Pengguna

May 11, 2021 by Winnie the Pooh

Aktor ancaman yang tidak diketahui berhasil mengendalikan lebih dari 27% dari seluruh kapasitas network exit Tor pada awal Februari 2021, sebuah studi baru di infrastruktur dark web terungkap.

“Entitas yang menyerang pengguna Tor secara aktif mengeksploitasi pengguna tor sejak lebih dari setahun dan memperluas skala serangan mereka ke tingkat rekor baru,” kata seorang peneliti keamanan independen yang menggunakan nama nusenu dalam sebuah artikel yang diterbitkan pada hari Minggu.

Ini adalah yang terbaru dari serangkaian upaya yang dilakukan untuk mengungkap aktivitas Tor berbahaya sejak Desember 2019. Serangan, yang dikatakan telah dimulai pada Januari 2020, pertama kali didokumentasikan dan diekspos oleh peneliti yang sama pada Agustus 2020.

Sementara middle relays biasanya menangani penerimaan lalu lintas di jaringan Tor dan meneruskannya, exit relay adalah simpul terakhir yang dilewati lalu lintas Tor sebelum mencapai tujuannya.

Exit node di jaringan Tor telah diubah di masa lalu untuk menyuntikkan malware seperti OnionDuke, tetapi ini adalah pertama kalinya seorang aktor tak dikenal berhasil mengontrol sebagian besar exit node Tor.

Tujuan utama serangan itu, menurut nusenu, adalah untuk melakukan serangan “person-in-the-middle” pada pengguna Tor dengan memanipulasi lalu lintas yang mengalir melalui jaringan exit relays nya.

Selengkapnya: The Hacker News

Tagged With: Cybersecurity, Exit Relays, Hijacked, person-in-the-middle, Tor

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