Ransomware Research

About Ace


Ace was first discovered in February 2023 in enterprise cloud environments.

Name Ace
First Seen February 2023

Behavior of Ace

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

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

Learn More

Characteristics of Ace

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


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 Ace 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 Ace.


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

ExecutablesSeroXen.dll, Stub.dll
How Elastio can help

Don’t let ransomware
take over your data.

Elastio is a cloud-native data resilience platform on AWS, providing robust security and assuring the recoverability of critical data in cloud environments.

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