移除NOOD勒索軟件病毒 (+DECRYPT.nood文件)

Nood ransomware is a sort of computer virus that injects your PC, 加密您的文件, and then asks you to pay the ransom for file decryption. 除了呢啲唔愉快嘅活動, 該病毒仲會修改一些重要嘅設置，甚至可以停止您的安全工具.

Nood virus – 呢個係咩?

Nood ransomware can correctly be described as a STOP/Djvu malware family. 呢種類型嘅電腦病毒係針對個人嘅. This specification supposes that Nood does not bring any type of additional viruses, which often helps viruses of other families to control your PC. Because the majority of users do not have anything valuable, there is no reason to use additional viruses that increase the risk of failure of the whole ransomware operation.

The common signs of that virus activity is the emersion of .nood files in your folders, 而唔係你以前擁有嘅文件. 這 照片.jpg 變成 photo.jpg.nood, 報告.xlsx – 到 report.xlsx.nood 等陣. You cannot suspend this operation, 以及無法打開呢啲文檔 – they are ciphered with quite a strong algorithm.

你仲可以睇到勒索軟件活動嘅不同其他迹象. Abruptly disabled Microsoft Defender and inability to open the well-known anti-malware forums or web pages, where the virus removal and decryption guides are published. 你將在下面的段落中看到它是如何工作的. 仲提供刪除和解密指南 – read below how to remove the Nood virus and get the .nood files back.

How did Nood ransomware encrypt my files?

After the injection, the Nood virus starts a connection with its command and control server. 此服務器由惡意軟件維護者控制 – 管理此病毒傳播嘅欺詐者. 呢啲騙子進行嘅另一項活動係回覆患者的電子郵件, 想要取回文件嘅人.

The documents are encrypted with one of the strongest encryption algorithms – AES-256. The digit in the name of this algorithm means the power of two – 2^256對於呢種情況. 78-digit number of possible decryption key variations – 暴力破解它唔係真實嘅. 正如分析人士所讲, 將花費比我哋嘅星球大約存在更多嘅時間, 即使您使用最強大的電腦系統. 包含加密文件緊嘅每個文件夾中(s), Nood virus creates the _readme.txt file with the following contents:

注意力!

唔使擔心, 你可以返回所有文件!

您的所有文件都像照片一樣, 數據庫, documents, and other important are encrypted with the strongest encryption and unique key.
The only method of recovering files is to purchase a decrypt tool and a unique key for you.
該軟件將解密您的所有加密文件.

What guarantees do you have?

You can send one of your encrypted files from your PC and we decrypt it for free.
但我哋只能解密 1 免費提交文件. The file must not contain valuable information.

你可以獲取並查看視頻概述解密工具:

https://we.tl/t-WJa63R98Ku

The price of private key and decrypt software is $980.
A discount of 50% is available if you contact us first 72 小時, that price for you is $490.

請注意，如果唔付款，你將永遠無法恢復數據.

檢查您的電子郵件 "垃圾郵件" 或 "垃圾" folder if you don't get an answer for more than 6 小時.

To get this software you need to write to our e-mail:

support@fishmail.top

Reserve an e-mail address to contact us:

datarestorehelp@airmail.cc

Your ID:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

不過, 你仍然可以打開某些文件. The Nood virus ciphers only the first 150 每個文件嘅知識庫, 但係可以訪問此文件嘅另一部分. 主要, 它最適合音頻/視頻文件, 可能大於 150 千字節. 並非每個媒體播放器都可以打開呢啲文件 – 贏安普係最好嘅解決方案, 因為佢係免費嘅並且經過充分測試. The first seconds of each file will be silent – 部分係加密嘅 – 但係文檔嘅其餘部分將像乜都冇發生一樣可訪問.

Is Nood ransomware dangerous for my PC?

正如上面幾段所述, ransomware is not only about encrypting files. Nood ransomware makes changes in your operating system to prevent searching the ransomware removal and file decryption guides. Malware does not create a software barrier – 它只是更改系統設置, 主要 – 網絡和安全配置.

透過網絡配置, 更改最多嘅項係HOSTS配置文件. This text file contains the DNS address configurations, 瀏覽器喺向服務器發送請求時使用. If you add a specific DNS address for a certain web page, 您的網絡瀏覽器下次將透過該DNS連接該網站. 勒索軟件更改此文件, 添加唔存在嘅DNS, so any of the web browsers will show you the “Unable to resolve the DNS address” error.

Other modifications done by the virus are targeted at the prevention of operative spotting of itself, 並且仲禁用大多數安全工具嘅安裝. Nood virus implements several changes in Group Policies – the system setting app which allows to change the rights of each app. 以噉嘅方式, malware stops the Microsoft Defender and several other anti-malware apps, 以及阻止啟動反惡意軟件安裝文件.

我係點樣被感染法?

在整個學期中，STOP/Djvu家族存在, 它使用可疑程序作為勒索軟件注入的主要方式. Under the term dubious applications, I mean programs that are already not controlled by the creator and spread through file-sharing websites. 呢啲程序可能被黑客入侵, 使它們無需購買任何許可證即可使用. 呢種程序類型嘅另一個例子係各種黑客工具 – 作弊引擎, 註冊機, Windows activation tools, 等陣.

Such programs may be spread in many ways – 透過提供下載連結嘅網站, or through peer-to-peer networks – 海盜灣, eMule, 等陣. 所有呢啲來源都被稱為最受歡迎嘅電腦盜版網站. 人們使用呢啲網站免費獲取各種應用程序或遊戲, 即使必須購買呢啲應用程序. 沒有人可以阻止破解呢啲應用程序嘅用戶把某種病毒添加到被黑應用程序嘅文件中. 黑客工具, 然而, 係為非法目標創建嘅, so their creators may easily embed the ransomware under the guise of some program element.

呢啲被黑客入侵嘅程序, 無論其來源如何, 係各種病毒最常見嘅來源之一, and surely the most popular one for Nood malware. It is better to stop using it, 不僅因為勒索軟件安裝風險. Avoiding license buying is an illegal action, 黑客和使用被黑客入侵程序嘅用戶都受到盜版指控.

How do I remove Nood malware?

The Nood malware is really hard to wipe out manually. 真, 因為它在Windows中進行的修改數量, it is almost impossible to detect them all and repair them. 最好嘅選擇係使用防病毒程序. 但係揀邊個?

You may see the advice to use Microsoft Defender, 已經喺你嘅系統內部. 儘琯如此, 如前所述, 大多數STOP/Djvu勒索軟件示例甚至喺加密過程之前就禁用了它. 使用第三方工具係唯一可能嘅解決方案 – and I can recommend the GridinSoft Anti-Malware as an option for that case. 它具有令人印象深刻的檢測能力, 所以惡意軟件唔會被錯過. 它仲能夠進行系統修復, which is heavily needed after the Nood virus attack.

To remove Nood malware infections, 使用合法嘅防病毒軟件掃描您的電腦.

刪除勒索軟件後, 你可以轉到文件解密. 需要刪除惡意軟件以防止重複加密您的文件: while Nood ransomware is active, it will not miss any unencrypted files.

How to decrypt the .nood files?

There are two ways to recover your files after a Nood ransomware attack. The first one and the most popular is file decryption. 佢係透過特殊程序進行嘅, 由Emsisoft設計, 並命名為用于STOP/Djvu嘅Emsisoft Decryptor. 呢個程序係免費嘅. Analysts update their decryption keys databases as often as possible, 所以你一定會搵番你嘅文件, 遲早.

取回文件的另一種選擇是嘗試從磁盤中恢復它們. Since ransomware deletes them and substitutes them with a ciphered copy, the residue of the documents is still stored on the disk. 刪除後, 有關它們的信息將由文件系統中刪除, 但唔係由磁盤驅動器. 特殊應用, 中意照片記錄, can recover these files. 佢係免費嘅, 太, 並且也可用于文件恢復，以防你無意中刪除某些文件.

Decrypting the .nood files with Emsisoft Decrypter for STOP/Djvu

下載並安裝 Emsisoft解密器工具. 同意其EULA並繼續界面.

該程序嘅界面非常簡單. All you have to do is select the folder where the encrypted files are stored and wait. 如果程序具有與您的勒索軟件案例相對應嘅解密密鑰 – 它將解密它.

在使用Emsisoft Decrypter for STOP/Djvu期間, 你可能會看到各種錯誤消息. 唔使擔心, 並不意味著你做錯咗乜嘢或程序無法正常工作. Each of these errors refers to a specific case. 這是解釋:

錯誤: Unable to decrypt a file with ID: [您的身份證件]

該程序冇適合您的案例嘅相應密鑰. 你需要等待一段時間，直到密鑰數據庫更新.

冇新變體在線ID嘅密鑰: [您的身份證件]

通知: 此ID似乎係喺綫ID, 解密係不可能嘅.

此錯誤表示您的文件已使用在線密鑰加密. 喺呢種情況下, 解密密鑰係唯一嘅，存儲喺遠程服務器上, 由騙子控制. 不幸, 解密係不可能嘅.

結果: 新款式/規格離線ID冇鍵: [示例標識]

此ID顯示為脫機ID. 將來可能會解密.

勒索軟件使用離線密鑰加密您的文件. 此鍵唔係唯一嘅, 所以你可能同另一個受害者有共同點. 由於必須收集離線密鑰, 太, it is important to keep calm and wait until the analyst’s team finds one that will fit your case.

無法解析遠程名稱

此錯誤表示該程序喺您的電腦上存在DNS問題. 係HOSTS文件中惡意更改嘅明顯迹象. 使用 官方Microsoft指南.

Recovering the .nood files with PhotoRec tool

PhotoRec係一個開源工具, that is created to recover deleted or lost files from the disk drive. It checks each disk sector for the residues of deleted files and then tries to recover them. That app can recover files in more than 400 不同嘅格式. Because of the described feature of the ransomware encryption mechanism, 可以使用此工具獲取原件, 返回未加密嘅文件.

下載照片記錄 從官方網站. 佢係免費嘅, 然而, 它的開發人員警告說，佢唔保證該程序將係 100% 對文件恢復有效. 此外, 即使係付費應用程序都幾乎無法為你提供噉嘅保證, 由於隨機因素鏈會令文件恢復更加困難.

將下載嘅存檔解壓縮到您鍾意嘅文件夾中. 不用擔心，因為它的名字 – 測試磁盤 – 係同一家公司開發嘅實用程序嘅名稱. 佢哋決定一起傳播，因為PhotoRec同TestDisk經常一起使用。. 喺解壓縮嘅文件中, search for the qphotorec_win.exe file. 運行此可執行文件.

在開始恢復過程之前, 你需要指定多個設置. 在下拉列表中, 選擇加密前存儲文件嘅邏輯磁盤.

然之後, 你需要指定需要恢復嘅文件格式. 可能好難碌所有內容 400+ 格式, 幸, 它們按字母順序排序.

最後一刻, 命名要用作已恢復文件容器嘅文件夾. 該程序可能會挖出好多無用嘅文件, 被故意刪除嘅, so the desktop is a bad solution. The best option is to use the USB drive.

喺呢啲簡單嘅操作之後, 你只需按“搜索”按鈕 (it turns active if you specify all required parameters). 恢復過程可能需要幾個鐘頭, 所以保持耐心. 建議在此期間唔好使用電腦, 因為你可能會覆蓋要恢復嘅某些文件.

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