How to determine whether your server is infected by a ransomware virus and recover data decrypted by the ransomware virus

Ransomware viruses are becoming more and more rampant, which has a great impact on the production and operation of enterprises and personal data. However, for single companies and individuals, being attacked by ransomware viruses is a low-frequency event after all. This also leads to many people being unable to determine the specific problem after being infected, and then failing to take timely response measures, leading to further expansion of the situation and losses. Next, Yuntian Data Recovery Center will tell you how to determine whether your server is infected with a ransomware virus.

1. All file extensions have changed and cannot be opened normally.

Most ransomware viruses do not distinguish between file types when encrypting data on the server. Therefore, whether it is database files, pictures, word, PDF, etc., they will be encrypted indiscriminately. One of the more obvious features is that the file extension has changed. For example, the original file is kuaijiemi.mdf, and after encryption, the file will become kuaijiemi.mdf.xxxx. Even if I change the extension back to the original, the file still cannot be opened normally.

2. There are ransom notes on the desktop and multiple folders.

The other party has only one purpose in encrypting your data, and that is to make you pay the ransom. Therefore, they will leave ransom letters in conspicuous locations such as the desktop and multiple folders. The names and forms of ransom letters come in various forms. For example, some are TXT documents, some are an HTML page, and some are an exe program.

3. The server becomes abnormally stuck.

Excluding factors such as long server age and poor configuration, servers infected by ransomware often become abnormally laggy. This is because most of the running memory is occupied, and some functions in the system are destroyed, so it will become very laggy. This is one of the reasons why Yuntian Data Recovery Center recommends users to reinstall the system after recovering the data.

4. Unable to boot normally

If the other party wants to attack your server, it will definitely destroy your server. Therefore, some users will find that their server suddenly cannot start normally. At this time, PE can enter the system and see if the file extension has changed to further confirm whether it has been infected by the ransomware virus.

5. The software cannot be used normally

Whether it is financial software such as Kingdee and UFIDA, or software such as ERP and OA, after the server is infected with the ransomware virus, the software often cannot be used normally. Therefore, when enterprises find that these software cannot be used normally, they must promptly confirm whether they have been infected by a ransomware virus.

These are the more common characteristics of ransomware viruses. If your server is confirmed to be infected by a ransomware virus, you must deal with it in time to minimize the loss.

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Origin blog.csdn.net/M99W1230/article/details/133170723