Estemani Ransomware (<Original Filename>.<Original Extension> / @_READ_TO_RECOVER_FILES_@.txt) - Videos - CheckMAL

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Distribution Method : Unknown

MD5 : c4d91f35b29eeae352b4299cf0a1dd4e

Major Detection Name : Generic.Ransom.Estemani.6F64B41F (BitDefender), Ransom.Win32.ESTIMANI.THJOCAIA (Trend Micro)

Encrypted File Pattern : <Original Filename>.<Original Extension>

Malicious File Creation Location :
- C:\ProgramData\00000000.eky
- C:\ProgramData\00000000.pky

Payment Instruction File : @_READ_TO_RECOVER_FILES_@.txt

Major Characteristics :
- Offline Encryption
- Block processes execution (agent*, backup*, sql*, vm*)
- Disable system restore (wmic shadowcopy delete)
- Change the payment instructions file (@_READ_TO_RECOVER_FILES_@.txt) to a read-only (R) file attribute value.
- Utilizes SDelete from SysInternals to purge empty disc drive space, disabling possible recovery by file recovery tool. (<Random>.exe -c <Drive Letter>: /accepteula)