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OpcJacker

Malware Crypto-Stealing ‘OpcJacker’ Menargetkan Pengguna dengan Layanan VPN Palsu

April 4, 2023 by Flamango

Malware pencuri informasi baru ‘OpcJacker’ telah terlihat sejak paruh kedua tahun 2022 sebagai bagian dari kampanye malvertising.

Peneliti Trend Micro, Jaromir Horejsi dan Joseph C. Chen, mengatakan bahwa fungsi utama OpcJacker meliputi keylogging, mengambil screenshot, mencuri data sensitif dari browser, memuat modul tambahan, dan mengganti alamat cryptocurrency di clipboard untuk tujuan pembajakan.

OpcJacker disembunyikan menggunakan crypter ‘Babadeda’ dan menggunakan file konfigurasi untuk mengaktifkan fungsi pengambilan datanya.

File penginstal bertindak sebagai saluran untuk menyebarkan OpcJacker, yang juga mampu mengirimkan muatan tahap selanjutnya seperti NetSupport RAT dan varian komputasi jaringan virtual tersembunyi (hVNC) untuk akses jarak jauh.
File penginstal bertindak sebagai saluran untuk menyebarkan OpcJacker, yang juga mampu mengirimkan muatan tahap selanjutnya seperti NetSupport RAT dan varian komputasi jaringan virtual tersembunyi (hVNC) untuk akses jarak jauh.

File penginstal bertindak sebagai saluran untuk menyebarkan OpcJacker, mampu mengirimkan muatan tahap selanjutnya.

Vektor awal kampanye melibatkan jaringan situs web palsu yang mengiklankan perangkat lunak yang tampak aman dan aplikasi terkait cryptocurrency. Kampanye Februari 2023 secara khusus memilih pengguna di Iran dengan dalih menawarkan layanan VPN.

Temuan itu muncul ketika Securonix mengungkapkan rincian kampanye serangan yang sedang berlangsung ‘TACTICAL#OCTOPUS’, menargetkan entitas AS dengan bujukan bertema pajak untuk menginfeksi mereka dengan backdoor.

Dalam perkembangan terkait, pengguna Italia dan Prancis yang mencari versi retak dari perangkat lunak pemeliharaan PC di YouTube dialihkan ke halaman Blogger yang mendistribusikan dropper NullMixer. NullMixer juga menonjol karena secara bersamaan menjatuhkan berbagai macam malware siap pakai.

Selengkapnya: The Hacker News

Tagged With: cryptocurrency, Malware, OpcJacker, VPN

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