• Skip to main content

Naga Cyber Defense

Trusted Security for all of Indonesia

  • Home
  • About
  • Programs
  • Contact
  • Blog
You are here: Home / Archives for Cloud Snooper

Cloud Snooper

Malware “Cloud Snooper” yang menyelinap ke server Linux

February 26, 2020 by Winnie the Pooh

SophosLabs baru saja menerbitkan laporan tentang serangan malware yang dijuluki Cloud Snooper. Alasan untuk nama ini bukan karena serangan ini hanya terjadi pada cloud (teknik ini dapat digunakan terhadap hampir semua server, dimanapun ia di-host) namun nama itu diberikan karena dengan cara ini siber kriminal dapat membuka server Anda ke cloud, dengan cara yang pasti tidak Anda inginkan, “dari dalam ke luar”.

 

Pada Artikel kali ini, Tim Keamanan Sophos hanya akan membahas salah satu komponen di Cloud Snooper, komponen itu bernama snd_floppy. Itu adalah driver kernel Linux yang digunakan oleh penjahat Cloud Snooper sehingga mereka dapat mengirim instruksi perintah dan kontrol (C2) langsung ke jaringan Anda, namun tersembunyi di depan mata.

 

Driver snd_floppy menggunakan nilai numerik port TCP yang biasanya tidak penting untuk mengenali “sinyal rahasia” yang masuk dari luar firewall. Sumber port adalah apa yang menyisipkan pesan rahasia melalui firewall, dimana snd_floppy akan melakukan salah satu fungsi rahasianya berdasarkan nomor port, termasuk:

 

  • Mengekstrak dan meluncurkan program malware (Sumber port=6060)
  • Mengalihkan paket ini ke malware (Sumber port=7070)
  • Menghentikan dan menghapus malware yang sedang berjalan (Sumber port=9999)
  • Alihkan paket ini ke server SSH internal (Sumber port=1010)

 

Baca berita selengkapnya dan cara menangani malware ini pada tautan dibawah ini;

Source: Naked Security by Sophos | SophosLabs

Tagged With: Cloud Snooper, Linux, Malware, Port Source, Server

Copyright © 2025 · Naga Cyber Defense · Sitemap

Cookies Settings
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
Do not sell my personal information.
AcceptReject AllCookie Settings
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
CookieDurationDescription
_ga2 yearsThe _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors.
_gat_gtag_UA_172707709_11 minuteSet by Google to distinguish users.
_gid1 dayInstalled by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
non-necessary
SAVE & ACCEPT
Powered by CookieYes Logo