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You are here: Home / News / Telah terjadi peningkatan besar dalam serangan phishing menggunakan add-in Microsoft Excel XLL

Telah terjadi peningkatan besar dalam serangan phishing menggunakan add-in Microsoft Excel XLL

February 2, 2022 by Winnie the Pooh

Gelombang serangan siber memanfaatkan file add-in Microsoft Excel untuk mengirimkan beberapa bentuk malware dalam kampanye yang dapat membuat bisnis rentan terhadap pencurian data, ransomware, dan kejahatan dunia maya lainnya.

Dirinci oleh para peneliti di HP Wolf Security, kampanye tersebut menggunakan file tambahan Microsoft Excel (XLL) berbahaya untuk menginfeksi sistem dan ada peningkatan serangan hampir enam kali lipat (588%) menggunakan teknik ini selama kuartal terakhir tahun 2021 dibandingkan dengan tiga bulan sebelumnya.

File add-in XLL sangat populer karena memungkinkan pengguna untuk menggunakan berbagai macam alat dan fungsi tambahan di Microsoft Excel. Tapi seperti makro, mereka adalah alat yang dapat dieksploitasi oleh penjahat cyber.

Serangan didistribusikan melalui email phishing berdasarkan referensi pembayaran, faktur, kutipan, dokumen pengiriman dan pesanan yang datang dengan dokumen Excel berbahaya dengan file tambahan XLL. Menjalankan file berbahaya meminta pengguna untuk menginstal dan mengaktifkan add-in, yang secara diam-diam akan menjalankan malware di mesin korban.

Keluarga malware yang diidentifikasi dikirim dalam serangan yang memanfaatkan file XLL termasuk Dridex, IcedID, BazaLoader, Agen Tesla, Raccoon Stealer, Formbook, dan Bitrat. Banyak dari bentuk malware ini dapat membuat pintu belakang ke sistem Windows yang disusupi, memberikan penyerang kemampuan untuk mengakses mesin dari jarak jauh, memantau aktivitas, dan mencuri data.

Selengkapnya: ZDNet

Tagged With: Cybersecurity, Exploit, Kemanan Siber, Malware, Microsoft Excel, XLL

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