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You are here: Home / News / Email phishing ini menjanjikan Anda bonus – tetapi sebenarnya mengirimkan malware trojan Windows

Email phishing ini menjanjikan Anda bonus – tetapi sebenarnya mengirimkan malware trojan Windows

February 16, 2021 by Winnie the Pooh

Kampanye phishing baru mencoba memikat korban agar mengunduh versi terbaru dari trojan malware – dan memiliki tautan ke salah satu operasi kriminal siber paling produktif yang aktif di dunia saat ini.

Trojan Bazar pertama kali muncul tahun lalu dan penyebaran malware trojan yang berhasil dapat memberi penjahat siber sebuah backdoor ke dalam sistem Windows yang dikompromikan, memungkinkan mereka untuk mengontrol perangkat dan mendapatkan akses tambahan ke jaringan untuk mengumpulkan informasi sensitif atau mengirimkan malware, termasuk ransomware.

Para peneliti telah mengaitkannya dengan pengembang Trickbot, salah satu bentuk malware paling umum untuk peretas kriminal yang ingin masuk ke jaringan.

Sekarang para peneliti keamanan siber di Fortinet telah mengidentifikasi varian baru dari trojan Bazar, yang telah dilengkapi dengan teknik anti-analisis untuk membuat malware lebih sulit dideteksi oleh perangkat lunak anti-virus.

Ini termasuk menyembunyikan API berbahaya dalam kode dan hanya memanggilnya saat diperlukan, obfuscation kode tambahan, dan bahkan mengenkripsi string kode tertentu agar lebih sulit untuk dianalisis.

Teknik baru ditambahkan ke Bazar menjelang akhir Januari dan bertepatan dengan kampanye phishing yang dirancang untuk mendistribusikan versi terbaru dari malware tersebut.

Tema yang digunakan oleh email phishing yang dirancang untuk menarik minat dari calon korban perusahaan termasuk laporan keluhan pelanggan palsu, laporan tagihan palsu, dan penawaran bonus finansial palsu.

Untuk menghindari menjadi korban serangan phishing yang menyebarkan Bazar atau jenis malware lainnya, para peneliti merekomendasikan agar organisasi memberikan panduan kepada karyawan tentang cara mengidentifikasi dan melindungi diri dari serangan dan penipuan.

Sumber: ZDNet

Tagged With: Backdoor, Bazar, Cyber Security, Phishing, Security, Trojan, Windows

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