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Masslogger

Trojan baru yang jahat ini mencuri detail login dari Chrome, Edge, dan Outlook

February 19, 2021 by Winnie the Pooh

Tim intelijen ancaman di Cisco Talos telah menemukan kampanye trojan baru yang dapat mencuri kredensial pribadi dari browser web, Microsoft Outlook, dan aplikasi perpesanan instan. Metode serangan dimulai dengan email phishing yang berisi lampiran file HTML berbahaya.

“Metode ini menggunakan pendekatan multi-modular yang dimulai dengan email phishing awal dan dilanjutkan ke muatan akhir,” Vanja Svajcer, peneliti yang bekerja untuk Cisco Talos, menjelaskan. “Musuh di balik kampanye ini kemungkinan besar melakukan ini untuk menghindari deteksi. Tapi itu juga bisa menjadi kelemahan, karena ada banyak peluang bagi defender untuk menghancurkan killchain”.

Penyerang pertama-tama mengirim email dengan baris subjek yang mengklaim terkait dengan bisnis tertentu. Ini akan disertai dengan lampiran RAR yang membuat file dengan ekstensi RAR “r00” dan kemudian ekstensi .chm. File CHM adalah format HTML terkompilasi dan, dalam hal ini, berisi kode JavaScript yang akan memulai proses infeksi.

Jenis trojan yang digunakan dalam kampanye ini dikenal sebagai “Masslogger” dan telah terlihat di alam liar sebelumnya. Masslogger pertama kali dirilis pada April 2020 dan dijual di forum peretasan sebagai cara untuk mencuri kredensial, sebagian besar dari browser tetapi juga dari klien email dan aplikasi perpesanan.

Cisco Talos mengidentifikasi pesan email yang menargetkan Latvia, Lituania, Turki, Bulgaria, Estonia, Rumania, Hongaria, Italia, dan Spanyol, dengan beberapa pesan tertulis dalam bahasa Inggris.

Selengkapnya: Tech Radar | Cisco Talos

Tagged With: Credential Theft, Cyber Security, Masslogger, Phishing, Trojan

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