Ransomware Research

About AnonFive


AnonFive was first discovered in March 2017 in enterprise cloud environments. AnonFive is found in environments with a number of different names, including D3vilH0rn, etc. For a full list of all names, please see below.

Name AnonFive
  • D3vilH0rn
First Seen March 2017


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

HiddenTear » AnonFive

Behavior of AnonFive

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

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

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Characteristics of AnonFive

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


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 AnonFive 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 AnonFive.

File NameREAD_IT.txt


These are the names of the executables that contain the undetonated ransomware payload for AnonFive.

Executableshidden-tear.exe, key.rsa
How Elastio can help

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Elastio protects data from ransomware and malware evading perimeter defenses and mitigates downtime, data loss, and reputational harm for businesses.

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