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You are here: Home / News / Babuk Locker adalah ransomware perusahaan baru pertama di tahun 2021

Babuk Locker adalah ransomware perusahaan baru pertama di tahun 2021

January 6, 2021 by Winnie the Pooh

Awal tahun 2021 ini datang dengan ransomware baru bernama Babuk Locker yang menargetkan korban perusahaan dalam serangan yang dioperasikan oleh manusia.

Babuk Locker adalah operasi ransomware baru yang diluncurkan pada awal 2021 dan sejak itu mengumpulkan sejumlah kecil korban dari seluruh dunia.

Dari negosiasi tebusan dengan korban yang dilihat oleh BleepingComputer, permintaan berkisar dari $60.000 hingga $85.000 dalam Bitcoin.

Setiap executable Babuk Locker yang dianalisis oleh BleepingComputer telah disesuaikan per korban untuk memuat ekstensi hardcode, catatan tebusan, dan URL Tor.

Saat diluncurkan, pelaku ancaman dapat menggunakan argumen baris perintah untuk mengontrol bagaimana ransomware harus mengenkripsi pembagian jaringan dan apakah mereka harus dienkripsi sebelum sistem file lokal.

Setelah diluncurkan, ransomware akan menghentikan berbagai layanan dan proses Windows yang diketahui menjaga file tetap terbuka dan mencegah enkripsi. Program yang dihentikan termasuk mail server, backup software, mail client dan web browser.

Saat mengenkripsi file, Babuk Locker akan menggunakan ekstensi hardcode dan menambahkannya ke setiap file terenkripsi, seperti yang ditunjukkan di bawah ini. Ekstensi hardcode saat ini yang digunakan untuk semua korban sejauh ini adalah .__ NIST_K571__.

Sumber: BleepingComputer

Operator ransomware juga akan meminta korban untuk mengirim file %AppData%\ecdh_pub_k.bin, yang berisi public key ECDH korban yang memungkinkan pelaku ancaman untuk melakukan uji dekripsi file korban atau menyediakan dekripsi.

Sayangnya, peneliti keamanan Chuong Dong mengatakan bahwa penggunaan ChaCha8 dan Elliptic-curve Diffie pada ransomware – Hellman (ECDH) membuat ransomware aman dan tidak dapat didekripsi secara gratis.

Sumber: Bleeping Computer

Tagged With: Babuk Locker, Cybersecurity, Ransomware, Security

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