Ransomware Research

About CryWiper


CryWiper was first discovered in December 2022 in enterprise cloud environments. CryWiper is found in environments with a number of different names, including BrowserUpdate, etc. For a full list of all names, please see below.

Name CryWiper
  • BrowserUpdate
First Seen December 2022


To better understand CryWiper, we can trace it’s origins. Below is a snapshot of CryWiper’s genealogy.

Xorist » CryWiper

Behavior of CryWiper

CryWiper is known to target specific file types. Below are all known file types that CryWiper is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. CryWiper unknown the last modified date of the file it targets.

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Characteristics of CryWiper

Here are some of the unique characteristics that are helpful to know about CryWiper.


Some ransomware will change or append a suffix to the end of the file after they are encrypted, including changing the extension of a file. Here are some of the possible suffixes that CryWiper ransomware is known to change.


Ransomware Notes

Not all ransomware leaves a note. However, some ransomware leaves the infected party instructions on what the user should do to get rid of the ransomware, or satisfy the ransom. This often involves transferring money, often bitcoin or another cryptocurrency to a designated wallet.

Below are the type(s) of notes, content, and typical locations where Elastio has found ransom notes from CryWiper.

File NameREADME.txt

External Pages

Ransomware often links to external pages such as payment pages, telegram contacts, etc. Below are some of the URLs Elastio has found to be associated with CryWiper.

External Pages
  • mailto:and_protect@tutanota.com
How Elastio can help

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