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You are here: Home / News / Malware WhiskerSpy Baru Dikirimkan Melalui Penginstal Codec Trojanized

Malware WhiskerSpy Baru Dikirimkan Melalui Penginstal Codec Trojanized

February 20, 2023 by Coffee Bean

Peneliti keamanan telah menemukan pintu belakang baru yang disebut WhiskerSpy yang digunakan dalam kampanye dari aktor ancaman tingkat lanjut yang relatif baru dilacak sebagai Earth Kitsune, yang dikenal menargetkan individu yang menunjukkan minat di Korea Utara.

Aktor tersebut menggunakan metode yang telah dicoba dan diuji dan mengambil korban dari pengunjung situs web pro Korea Utara, sebuah taktik yang dikenal sebagai serangan lubang berair.

Menurut Trend Micro, WhiskerSpy disampaikan saat pengunjung mencoba menonton video di website. Penyerang mengkompromikan situs web dan menyuntikkan skrip jahat yang meminta korban untuk memasang codec video agar media dapat dijalankan.

Untuk menghindari kecurigaan, aktor ancaman memodifikasi penginstal codec yang sah sehingga pada akhirnya memuat “pintu belakang yang sebelumnya tidak terlihat” pada sistem korban.

WhiskerSpy backdoor infection chain
source: Trrend Micro

Para peneliti mengatakan bahwa pelaku ancaman hanya menargetkan pengunjung situs web dengan alamat IP dari Shenyang, China; Nagoya, Jepang; dan Brasil.

Kemungkinan Brasil hanya digunakan untuk menguji serangan lubang air menggunakan koneksi VPN dan target sebenarnya adalah pengunjung dari dua kota di China dan Jepang. Korban yang relevan akan disajikan pesan kesalahan palsu di bawah ini yang meminta mereka memasang codec untuk menonton video.

Trend Micro telah menemukan versi sebelumnya dari WhiskerSpy yang menggunakan protokol FTP alih-alih HTTP untuk komunikasi C2. Varian yang lebih lama ini juga memeriksa keberadaan debugger pada saat eksekusi dan menginformasikan C2 dengan kode status yang sesuai.

Untuk dicatat, kepercayaan para peneliti dalam mengaitkan serangan lubang air ini dengan Earth Kitsune adalah sedang tetapi modus operandi dan targetnya mirip dengan aktivitas yang sebelumnya terkait dengan grup.

selengkapnya : bleepingcomputer

Tagged With: Hack Tool, Malware, North Korea, Watering Hole

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