Type
File Name
Location
NullByte was first discovered in August 2016 in enterprise cloud environments. NullByte is found in environments with a number of different names, including Necrobot, etc. For a full list of all names, please see below.
Name
NullByte
First Seen
August 2016
NullByte is known to target specific file types. Below are all known file types that NullByte is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. NullByte updates the last modified date of the file it targets.
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 NullByte ransomware is known to change.
Suffixes
_nullbyte
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 NullByte.
Type File Name Location message Login screenshot Desktop
These are the names of the executables that contain the undetonated ransomware payload for NullByte.
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 NullByte.
External Pages
