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Black Hat

Kampanye Masif Menggunakan Situs WordPress yang Diretas sebagai Platform untuk Jaringan Iklan Black Hat

January 27, 2023 by Flamango

Seringkali penyerang mendaftarkan domain baru untuk menghosting malware mereka. Dalam banyak kasus, domain baru dikaitkan dengan kampanye malware tertentu.

Dalam postingan blognya, penulis bersama rekannya Ben Martin, akan meninjau bagaimana perilaku wave terbaru untuk domain violetlovelines, bagaimana kampanye telah berkembang dalam beberapa bulan terakhir, dan cara menghapus malware dari situs web korban.

Jenis Suntikan
Pada situs web yang terinfeksi, ditemukan dua jenis injeksi violetlovelines[.]com yang umum yaitu injeksi tag skrip sederhana (subdomain dan nama file dapat bervariasi) dan dan injeksi yang disamarkan (JavaScript) yang memanfaatkan fungsi fromCharCode.

Rantai Pengalihan dan Jaringan Iklan
Beberapa bulan terakhir, kampanye malware ini secara bertahap beralih dari halaman penipuan pemberitahuan push CAPTCHA palsu yang terkenal ke jaringan iklan ’black hat’ yang berganti-ganti antara pengalihan ke sah, samar, dan murni berbahaya situs web.

Berbagai level untuk injeksi skrip, TDS (Sistem Pengarahan Lalu Lintas), rantai pengalihan dan jaringan iklan, diantaranya yaitu tingkat pertama – skrip yang disuntikkan, tingkat kedua – TDS pendahuluan, tingkat ketiga – jaringan iklan/TDS.

TDS berfungsi sebagai Jaringan Iklan untuk situs WordPress yang terinfeksi
TDS tampaknya menggabungkan penawaran dari berbagai aktor jahat dan mitra iklan yang lebih sah dan menggunakan situs WordPress yang diretas sebagai inventaris untuk penempatan/pengalihan iklan.

Pemasaran samar, pembaruan browser palsu, penipuan dukungan teknis, unduhan drive-by berbahaya dari Discord, malware pencuri, dan penjelajahan aman Google, merupakan upaya-upaya masif dari penyerang untuk melancarkan aksinya.

Langkah-langkah Perbaikan dan Pembersihan
Pemilik situs web WordPress dan pengguna melaporkan bahwa situs web dialihkan melalui violetlovelines[.]com dan/atau ke lokasi tak terduga lainnya, maka pengguna dapat memindainya melalui malware SiteCheck dan pemeriksa keamanan.

Langkah untuk perbaikan dan pembersihan yang dapat dilakukan adalah menghapus malware yang disuntikkan, perbarui tema, plugin, dan perangkat lunak pihak ketiga, mengubah kata sandi situs web, dan hapus backdoors

Selengkapnya: SUCURI

Tagged With: Black Hat, Hacked Site, WordPress

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