Analysis by: John Rainier Navato
ALIASES:

Ransom:Linux/Biotech.A!MTB (MICROSOFT)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Ransomware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Canal de infección Downloaded from the Internet, Dropped by other malware

This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It drops files as ransom note. It avoids encrypting files with the following file extensions.

  TECHNICAL DETAILS

Tamaño del archivo 13,650 bytes
Tipo de archivo ELF
Residente en memoria No
Fecha de recepción de las muestras iniciales 22 Nov 2023
Carga útil Encrypts files, Displays windows

Arrival Details

This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other Details

This Ransomware does the following:

  • It displays log activity through console.

Ransomware Routine

This Ransomware avoids encrypting files found in the following folders:

  • biotech
  • biotechdec

It appends the following extension to the file name of the encrypted files:

  • .biotech

It drops the following file(s) as ransom note:

  • {Malware File Path}\black_letter.txt

It avoids encrypting files with the following file extensions:

  • .biotech

  SOLUTION

Motor de exploración mínimo 9.800
Primer archivo de patrones de VSAPI 18.888.04
Primera fecha de publicación de patrones de VSAPI 19 Dec 2023
Versión de patrones OPR de VSAPI 18.889.00
Fecha de publicación de patrones OPR de VSAPI 20 Dec 2023

Step 1

Scan your computer with your Trend Micro product to delete files detected as Ransom.Linux.MULTIVERZE.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:

Step 2

Restore encrypted files from backup.


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