BlueSky was first discovered in June 2022 in enterprise cloud environments.
|First Seen||June 2022|
To better understand BlueSky, we can trace it’s origins. Below is a snapshot of BlueSky’s genealogy.
Behavior of BlueSky
BlueSky is known to target specific file types. Below are all known file types that BlueSky is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. BlueSky updates the last modified date of the file it targets.
Characteristics of BlueSky
Here are some of the unique characteristics that are helpful to know about BlueSky.
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 BlueSky ransomware is known to change.
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 BlueSky.
|File Name||# DECRYPT FILES BLUESKY #.html|
|File Name||# DECRYPT FILES BLUESKY #.txt|
These are the names of the executables that contain the undetonated ransomware payload for BlueSky.
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 BlueSky.
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