威脅數據庫 勒索軟體 SAGE 2.2 勒索軟體

SAGE 2.2 勒索軟體

不斷發展的數位環境帶來了日益複雜的威脅,用戶必須保護其設備免受惡意攻擊。在更先進的勒索軟體家族中,SAGE 2.2 作為一種強大且具有高度破壞性的病毒株脫穎而出。了解其行為並實施強大的安全措施是保護個人和組織資料的關鍵步驟。

SAGE 2.2 勒索軟體:如何運作

SAGE 2.2 是Sage 勒索軟體系列的高級變體,旨在加密受感染系統上的檔案並要求付費恢復。滲透後,勒索軟體會將「.sage」副檔名附加到加密檔案中,使它們無法存取。例如,名為“1.png”的檔案變為“1.png.sage”,而“2.pdf”則修改為“2.pdf.sage”。

加密完成後,SAGE 2.2 會更改受害者的桌面桌布並產生標題為「!HELP_SOS.hta」的勒索字條。此訊息以多種語言顯示,包括英語、德語、義大利語、葡萄牙語、西班牙語、法語、韓語、荷蘭語、阿拉伯語、波斯語和中文。除了書面要求外,音訊訊息還強調了遵守攻擊者指令的緊迫性。

贖金要求和威脅

勒索字條告知受害者,他們的文件已被鎖定,只能透過「SAGE Decryptor」工具解密,該工具需要唯一的解密金鑰。攻擊者提供鏈接,將受害者引導至需要付款的特定網站。如果這些連結失敗,勒索信中建議使用 Tor 瀏覽器匿名存取它們。還包括下載和瀏覽 Tor 的詳細說明,確保受害者可以不受干擾地存取付款入口網站。

儘管網路犯罪分子做出了承諾,但支付贖金並不能保證文件恢復。即使在收到付款後,攻擊者也可能扣留解密工具,使受害者無法檢索資料。此外,勒索軟體威脅通常會在後台繼續運行,如果不及時刪除,可能會加密其他檔案或在本地網路中傳播。

SAGE 2.2 如何感染設備

SAGE 2.2 使用多種感染媒介來滲透系統。最常見的方法之一是發送帶有惡意附件或連結的欺騙性電子郵件。毫無戒心的用戶打開這些附件或點擊嵌入的連結可能會在不知不覺中在其設備上執行勒索軟體。

此外,受損或詐欺性網站也充當勒索軟體分發的管道。網路犯罪分子可能會利用軟體漏洞、使用虛假技術支援詐欺或將損壞的腳本注入線上廣告中來傳遞有效負載。下載盜版軟體或使用未經驗證的第三方應用程式也可能使系統受到感染。

防禦勒索軟體的最佳安全實踐

鑑於勒索軟體攻擊的嚴重性,主動採取安全措施對於最大限度降低感染和資料遺失的風險至關重要。以下最佳實務有助於增強設備防禦 SAGE 2.2 等威脅的能力:

  • 定期資料備份:在外部儲存或雲端服務上維護安全且最新的備份可確保資料在遭受攻擊時保持可恢復性。備份應保持離線狀態,以防止勒索軟體對其進行加密。
  • 電子郵件警惕:使用者在處理來自未知寄件者的電子郵件時應謹慎行事。避免打開意外附件或點擊可疑鏈接,因為這些鏈接可能包含勒索軟體有效負載。
  • 軟體和系統更新:保持作業系統、應用程式和安全軟體更新有助於修補網路犯罪分子可能利用的漏洞。應盡可能啟用自動更新。
  • 強大的端點保護:實施信譽良好的安全軟體可提供針對勒索軟體和其他威脅的即時保護。基於行為的偵測等功能可以在勒索軟體活動造成損害之前識別並阻止它們。
  • 使用應用程式白名單:限製程式在未經管理批准的情況下執行有助於防止未經授權的軟體運行,從而降低勒索軟體感染的可能性。
  • 限制 Office 文件中的巨集:網路犯罪分子經常在文件中嵌入惡意巨集以觸發勒索軟體下載。預設禁用巨集有助於防止此類攻擊。
  • 網路安全措施:組織應實施防火牆、入侵偵測系統和網路分段,以限制勒索軟體的移動並防止廣泛的加密。

透過採用這些安全實踐,使用者可以大幅減少遭受勒索軟體威脅的風險,並最大限度地減少潛在感染的影響。

SAGE 2.2 是一種極具破壞性的勒索軟體變種,它會加密檔案、更改系統設定並要求付費才能解密。它採用欺騙手段,包括多語言贖金票據和基於 Tor 的支付門戶,強迫受害者遵守規定。然而,支付贖金並不能保證資料恢復,並且可能會鼓勵進一步的犯罪活動。

防範勒索軟體最有效的方法就是預防。實施強有力的安全實踐、維護定期備份以及在瀏覽和開啟電子郵件時保持謹慎可以幫助用戶保護其設備和資料免受網路威脅。

訊息

找到以下與SAGE 2.2 勒索軟體相關的消息:

*** ATTENTION! ALL YOUR FILES WERE ENCRYPTED! ***
*** PLEASE READ THIS MESSAGE CAREFULLY ***

All your important and critical files, databases, images and videos were encrypted by "SAGE 2.2 Ransomware"!
"SAGE 2.2 Ransomware" uses military grade elliptic curve cryptography, so you have no chances restoring your files without our help!
But if you follow our instructions we guarantee that you can restore all your files quickly and safely!

We created files with instructions named !HELP_SOS in every folder with encrypted files.

*** Please be sure to copy instruction text and links to your notepad to avoid losing it ***

-----------------

In case you can't find instructions, try opening any of these links:

===== Your personal key =====
-
======

If can't open any of those, you can use "TOR Browser"

TOR Browser is available on the official website: hxxps://www.torproject.org/
Just open this site, click on the \"Download Tor\" button and follow the installation instructions
Once "TOR Browser" in installed, use it to access -
File recovery instructions
You probably noticed that you can not open your files and that some software stopped working correctly.

This is expected. Your files content is still there, but it was encrypted by "SAGE 2.2 Ransomware".

Your files are not lost, it is possible to revert them back to normal state by decrypting.

The only way you can do that is by getting "SAGE Decrypter" software and your personal decryption key.

Using any other software which claims to be able to restore your files will result in files being damaged or destroyed.

You can purchase "SAGE Decrypter" software and your decryption key at your personal page you can access by following links:

If none of these links work for you, click here to update the list.

Updating links...

Something went wrong while updating links, please wait some time and try again or use "Tor Browser" method below.

Links updated, if new ones still don't work, please wait some time and try again or use "Tor Browser" method below.

If you are asked for your personal key, copy it to the form on the site. This is your personal key:

-
You will also be able to decrypt one file for free to make sure "SAGE Decrypter" software is able to recover your files

If none of those links work for you for a prolonged period of time or you need your files recovered as fast as possible, you can also access your personal page using "Tor Browser".

In order to do that you need to:

open Internet Explorer or any other internet browser;
copy the address hxxps://www.torproject.org/download/download-easy.html.en into address bar and press "Enter";
once the page opens, you will be offered to download Tor Browser, download it and run the installator, follow installation instructions;
once installation is finished, open the newly installed Tor Browser and press the "Connect" button (button can be named differently if you installed non-English version);
Tor Browser will establish connection and open a normal browser window;
copy the address
-
into this browser address bar and press "Enter";
your personal page should be opened now; if it didn't then wait for a bit and try again.
If you can not perform this steps then check your internet connection and try again. If it still doesn't work, try asking some computer guy for help in performing this steps for you or look for some video guides on YouTube.

You can find a copy of this instruction in files named "!HELP_SOS" stored next to your encrypted files.

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