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You are here: Home / News / Hacker menggunakan Attachments Microsoft OneNote untuk Menyebarkan Malware

Hacker menggunakan Attachments Microsoft OneNote untuk Menyebarkan Malware

January 23, 2023 by Coffee Bean

Pelaku ancaman sekarang menggunakan Attachment OneNote di email phishing yang menginfeksi korban dengan malware akses jarak jauh yang dapat digunakan untuk menginstal malware lebih lanjut, mencuri kata sandi, atau bahkan dompet cryptocurrency.

Ini terjadi setelah penyerang mendistribusikan malware di email menggunakan Attchment Word dan Excel berbahaya yang meluncurkan makro untuk mengunduh dan menginstal malware selama bertahun-tahun.

Menyalahgunakan Attachment OneNote

Microsoft OneNote adalah aplikasi notebook digital desktop yang dapat diunduh secara gratis dan disertakan dalam Microsoft Office 2019 dan Microsoft 365.

Karena Microsoft OneNote terinstal secara default di semua instalasi Microsoft Office/365, bahkan jika pengguna Windows tidak menggunakan aplikasi tersebut, masih tersedia untuk membuka format file.

Sebagai gantinya, OneNote memungkinkan pengguna untuk memasukkan Attachment ke dalam Buku Catatan yang, ketika diklik dua kali, akan meluncurkan Attachment tersebut.

Pelaku ancaman menyalahgunakan fitur ini dengan melampirkan Attachment VBS berbahaya yang secara otomatis meluncurkan skrip saat diklik dua kali untuk mengunduh malware dari situs jarak jauh dan memasangnya.

Untungnya, saat meluncurkan Attachment OneNote, program memperingatkan Anda bahwa hal itu dapat membahayakan komputer dan data Anda.

Namun sayangnya, sejarah telah menunjukkan kepada kita bahwa jenis permintaan ini biasanya diabaikan, dan pengguna cukup mengeklik tombol OK.

Melindungi dari ancaman ini
Setelah diinstal, malware jenis ini memungkinkan pelaku ancaman mengakses perangkat korban dari jarak jauh untuk mencuri file, menyimpan kata sandi browser, mengambil screenshot, dan dalam beberapa kasus, bahkan merekam video menggunakan webcam.

Cara terbaik untuk melindungi diri Anda dari Attachment malicious adalah dengan tidak membuka file dari orang yang tidak Anda kenal. Namun, jika Anda salah membuka file, jangan abaikan peringatan yang ditampilkan oleh sistem operasi atau aplikasi.

sumber : bleepingcomputer

Tagged With: Hacker, Malware, Microsoft

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