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DEPLOYLOG

Peretas mencuri data yang tidak terdeteksi dari AS dan organisasi Eropa sejak 2019

May 5, 2022 by Winnie the Pooh

Kelompok peretas China yang dikenal sebagai ‘Winnti’ telah secara diam-diam mencuri aset kekayaan intelektual seperti paten, hak cipta, merek dagang, dan data perusahaan lainnya – dan tetap tidak terdeteksi oleh peneliti keamanan serta target sejak 2019.

Winnti, juga dilacak sebagai APT41, adalah kelompok spionase dunia maya yang canggih dan sulit dipahami yang diyakini didukung oleh negara Tiongkok dan beroperasi atas nama kepentingan nasionalnya.

Kampanye kejahatan dunia maya yang ditemukan telah berlangsung setidaknya sejak 2019 dan menargetkan perusahaan teknologi dan manufaktur di Asia Timur, Eropa Barat, dan Amerika Utara.

Operasi kriminal ini dikenal sebagai ‘Operasi CuckooBees’ dan ditemukan oleh analis di Cybereason, yang mengungkapkan malware baru yang disebarkan oleh kelompok peretas terkenal, mekanisme yang mereka manfaatkan untuk penyusupan, dan metode pengiriman muatan rumit yang mereka gunakan.

Yang menjadi highlight dalam laporan Cybereason adalah malware Winnti baru yang dijuluki “DEPLOYLOG” dan metode penyalahgunaan mekanisme Windows CLFS (Common Log File System) untuk penyembunyian muatan.

Malware DEPLOYLOG, yang belum didokumentasikan sebelumnya, adalah DLL 64-bit (disamarkan sebagai “dbghelp.dll”) yang mengekstrak dan mengeksekusi payload terakhir Winnti, rootkit WINNKIT, dan kemudian membuat dua saluran komunikasi dengan remote C2 dan rootkit tingkat kernel.

Cybereason percaya bahwa karena kompleksitas, tersembunyi, dan kecanggihan Operasi CuckooBees, kemungkinan besar Winnti telah menginfeksi lebih banyak sistem perusahaan daripada yang dapat mereka verifikasi.

Selengkapnya: Bleeping Computer

Tagged With: APT41, CuckooBees, Cybersecurity, DEPLOYLOG, Keamanan Siber, Winnti

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