Ransomware Research
About AtomSilo
AtomSilo
AtomSilo was first discovered in September 2021 in enterprise cloud environments. AtomSilo is found in environments with a number of different names, including AtomSlio, etc. For a full list of all names, please see below.
| Name | AtomSilo |
|---|---|
| AKA |
|
| First Seen | September 2021 |
Genealogy
To better understand AtomSilo, we can trace it’s origins. Below is a snapshot of AtomSilo’s genealogy.
| LockFile » AtomSilo |
Targeting
Behavior of AtomSilo
AtomSilo is known to target specific file types. Below are all known file types that AtomSilo is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. AtomSilo updates the last modified date of the file it targets.
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Characteristics of AtomSilo
Here are some of the unique characteristics that are helpful to know about AtomSilo.
Suffixes
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 AtomSilo ransomware is known to change.
| Suffixes | .ATOMSILO |
|---|
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 AtomSilo.
| Type | file |
|---|---|
| File Name | README-FILE-{VICTIM_PC_NAME}-{TIMESTAMP}.hta |
| Location | EveryFolder |
Executables
These are the names of the executables that contain the undetonated ransomware payload for AtomSilo.
| Executables | ATOMSILO_2.exe, update.exe, pri.exe_ |
|---|
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 AtomSilo.
| External Pages |
|
|---|
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