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You are here: Home / News / Botnet Fodcha DDoS baru menargetkan lebih dari 100 korban setiap hari

Botnet Fodcha DDoS baru menargetkan lebih dari 100 korban setiap hari

April 14, 2022 by Eevee

Botnet yang berkembang pesat menjerat router, DVR, dan server di seluruh Internet untuk menargetkan lebih dari 100 korban setiap hari dalam serangan penolakan layanan (DDoS) terdistribusi.

Malware yang baru ditemukan ini, dinamai Fodcha oleh para peneliti di Lab Penelitian Keamanan Jaringan Qihoo 360 (360 Netlab), telah menyebar ke lebih dari 62.000 perangkat antara 29 Maret dan 10 April.

Jumlah alamat IP unik yang ditautkan ke botnet juga berosilasi, dengan 360 Netlab mengatakan bahwa mereka melacak 10.000 pasukan bot Fodcha menggunakan alamat IP China setiap hari, kebanyakan dari mereka menggunakan layanan China Unicom (59,9%) dan China Telecom (39,4%).

Bot langsung harian dengan alamat IP Cina (Netlab)

Fodcha menginfeksi perangkat baru menggunakan eksploitasi yang dirancang untuk menyalahgunakan kerentanan n-hari di beberapa perangkat dan alat cracking brute force yang dijuluki Crazyfia.

Daftar perangkat dan layanan yang ditargetkan oleh botnet Fodcha termasuk tetapi tidak terbatas pada:

  • Android: Android ADB Debug Server RCE
  • GitLab: CVE-2021-22205
  • SDK Hutan Realtek: CVE-2021-35394
  • MVPower DVR: JAWS Webserver eksekusi perintah shell yang tidak diautentikasi
  • LILIN DVR: LILIN DVR RCE
  • Router TOTOLINK: Router TOTOLINK Pintu Belakang
  • Router ZHONE: Router Web RCE ZHONE

Operator Fodcha menggunakan hasil pemindaian Crazyfia untuk menyebarkan muatan malware setelah berhasil mendapatkan akses ke sampel perangkat yang rentan terkena Internet di perangkat yang rentan.

Saat 360 Netlab ditemukan lebih lanjut, sampel botnet menargetkan MIPS, MPSL, ARM, x86, dan arsitektur CPU lainnya.

Sejak Januari 2022, botnet telah menggunakan domain fold[.]in command-and-control (C2) hingga 19 Maret saat beralih ke refrigeratorxperts[.]cc setelah vendor cloud menghapus domain C2 awal.

Sakelar domain Fodcha C2 (Netlab)

“Pergeseran dari v1 ke v2 adalah karena fakta bahwa server C2 yang sesuai dengan versi v1 dimatikan oleh vendor cloud mereka, jadi operator Fodcha tidak punya pilihan selain meluncurkan kembali v2 dan memperbarui C2,” para peneliti menyimpulkan.

“C2 baru dipetakan ke lebih dari selusin IP dan didistribusikan di beberapa negara termasuk AS, Korea, Jepang, dan India, melibatkan lebih banyak penyedia cloud seperti Amazon, DediPath, DigitalOcean, Linode, dan banyak lainnya.”

Selengkapnya : Bleeping Computer

Tagged With: Botnet, DDoS, Fodcha

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