CryptoLocker

 

Ransomware has become hugely popular among hackers and cybercriminals for obvious reasons. By disrupting users’ systems, preventing access to data, or using social engineering to prey on their fears, criminals extract payment in return for removing the threat. CryptoLocker was one of the first examples. Released in September 2013, CryptoLocker spread via email attachments and encrypted files on infected computers, making them impossible to access. In order to restore access to their data, users had to pay a ransom, at which point the cybercriminals behind CryptoLocker would send a decryption key that could be used to unencrypt the files. Some users reported that they were able to regain access by carrying out a System Restore or using data recovery software. Others said that when they had tried to recover files, they had lost them completely.

Comentarios

Publicar un comentario

Entradas populares de este blog

Brain

Imagen
  Believed to be the first computer virus for MS-DOS, Brain was released in 1986 and infected the boot sector of storage media, primarily floppy disks, formatted with DOS File Allocation Table (FAT). The boot sector was moved to another sector and marked as bad. Meanwhile, text was written into the infected sectors, which, remarkably, included the virus authors’ names and telephone numbers.
Leer más

Tinba

Imagen
  Tinba was first discovered in 2012. The name stands for the Tiny Banker Trojan. As a modified version of older Banker Trojans, it was developed to target the websites of financial institutions. The main goal was to collect clients’ information, such as PIN codes, usernames, account details, passwords, and credit card numbers. Tinba is based on network sniffing and man-in-the-browser attacks. It is indeed tiny — 20 KB — and it is what made the Trojan difficult to detect. 
Leer más