Alco was first discovered in September 2018 in enterprise cloud environments. Alco is found in environments with a number of different names, including Maoloa-Alco, China.Helper, X_Mister, 4444, 666, 865, etc. For a full list of all names, please see below.
|First Seen||September 2018|
To better understand Alco, we can trace it’s origins. Below is a snapshot of Alco’s genealogy.
|GlobeImposter » Maoloa, Alco|
Behavior of Alco
Alco is known to target specific file types. Below are all known file types that Alco is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. Alco updates the last modified date of the file it targets.
Characteristics of Alco
Here are some of the unique characteristics that are helpful to know about Alco.
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 Alco ransomware is known to change.
|Suffixes||.Alco4444, .Ox4444, .Mr-X666, .Tiger4444, .Pig4444, .Dragon4444, .pig4444, .Horse4444, .TROLL, .Ares666, .Persephone666, .haka, .Rabbit4444, .Hades666, .Hermes666, .Apollon865, .Ares865, .Artemis865-20, .Artemis865, .Athena865, .Rooster865qq, .Rooster865, .Rooster865qqZ, .Monkey865qqZ, .Monkey865, .Globeimposter-Alpha865qqz, .Encrypted, .Globeimposter-Alpha666qqz|
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 Alco.
|File Name||HOW TO BACK YOUR FILES.txt|
These are the names of the executables that contain the undetonated ransomware payload for Alco.
|Executables||GlobeImposter.exe, test_v.doc, svhost.exe, Tiger4444.exe, Persephone666.exe, Rabbit4444.exe, Hades666.exe, Athena865.exe, winlogon, HOW TO BACK YOUR FILES.bin, WINLOGON_PROTECTED.EXE, winlogon.exe, Hakbdyww7.exe, cia.exe, bfsv.exe, Data Recovery.bin, Apollon865.exe, winlogon_protected.exe|
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 Alco.
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