.BLOWER File Extension

Blower Ransomware Encrypted File

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What is a BLOWER file?

A file with a .blower extension is a file that has been encrypted by Blower ransomware, a type of malware utilized by cybercriminals. It is encrypted with AES and RSA 1024-bit encryption so it is not possible to open the file by simply changing the file extension.

More Information

Blower ransomware renames standard files that are important to the victim with a .blower extension. The files are typically documents, images, videos, and backup files, such as .MOV, .PDF, .DOCX, and .XLSX files.

The purpose of ransomware is to take your files hostage and force you to pay the perpetrator to unlock your files. It may be introduced to your computer through an executable file disguised as another type of file. This may be an email attachment, a file downloaded from a website, a message received through a social network, or a file included in a software installer.

Once the executable file is run, it begins scrambling your files, renaming them with the .blower extension, and encrypting them. The virus then generates a .TXT ransom note (_readme.txt) informing you of the takeover and what you need to do to recover your files.

NOTE: BLOWER files became prevalent in early 2019 and are similar to .LOCKY and .WALLET files.

How to open a BLOWER file

No known program can restore BLOWER files to their original state. The best way to recover your files is to retrieve them from a recent backup or perform a System Restore to a point before your computer was infected.


FileInfo.com recommends you never pay a ransom to decrypt files encrypted by ransomware. Paying a ransom encourages ransomware distributors to continue their efforts, and there is no guarantee that paying a ransom will give you access to your files. Instead, you should restore your data from a recent backup created before the ransomware infected your computer.

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Programs that open BLOWER files

System Restore

Verified by FileInfo.com

The FileInfo.com team has independently researched the Blower Ransomware Encrypted file format and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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