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You are here: Home / News / Ransomware Vice Society menggunakan alat pencurian data PowerShell baru dalam serangan

Ransomware Vice Society menggunakan alat pencurian data PowerShell baru dalam serangan

April 16, 2023 by Coffee Bean

Alat pencurian data baru ditemukan oleh Palo Alto Networks Unit 42 selama respons insiden pada awal 2023, saat responden memulihkan file bernama “w1.ps1” dari jaringan korban dan, lebih khusus lagi, direferensikan dalam ID Peristiwa 4104: Script Blokir acara Logging.

Skrip menggunakan PowerShell untuk mengotomatiskan eksfiltrasi data dan terdiri dari beberapa fungsi, termasuk Work(), Show(), CreateJobLocal(), dan fill().

Keempat fungsi ini digunakan untuk mengidentifikasi direktori potensial untuk eksfiltrasi, memproses grup direktori, dan akhirnya mengekstraksi data melalui permintaan HTTP POST ke server Vice Society.

Meskipun tampaknya ada beberapa fungsi otomatis dalam skrip untuk menentukan file apa yang dicuri, masih ada daftar pengecualian dan penyertaan master untuk membantu menyempurnakan file apa yang dicuri.

Misalnya, skrip tidak akan mencuri data dari folder yang namanya menyertakan string umum untuk cadangan, folder instalasi program, dan folder sistem operasi Windows.

Namun, ini secara khusus akan menargetkan folder yang berisi lebih dari 433 string dalam bahasa Inggris, Ceko, Jerman, Lituania, Luksemburg, Portugis, dan Polandia, menekankan bahasa Jerman dan Inggris.

Pada bulan Desember 2022, SentinelOne memperingatkan tentnag VIce Society yang telah beralih ke enkripsi file baru yang canggih yang dijuluki “PolyVice”, yang mungkin dipasok oleh pengembang kontrak yang juga menjual malware-nya ke ransomware Chilly dan SunnyDay.

Sayangnya,dengan pengadopsian alat yang canggih, Vice Society telah menjadi ancaman yang lebih besar bagi organisasi di seluruh dunia, memberikan lebih sedikit kesempatan bagi para pembela HAM untuk mendeteksi dan menghentikan serangan.

selengkapnya : bleepingcomputer.com

Tagged With: Cyber Attack, Cybersecurity, geng ransomware

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