Telstra has revealed the addition of almost one million new mobile services in the six months to December 2011, but Sensis revenues plummeted 24 percent in 12 months.
Security specialist Kaspersky Lab has detected a new version of Gpcode, a virus which encrypts user data and demands payment for the decryption routine.
Kaspersky says Virus.Win32.Gpcode.ai uses a complex encryption algorithm to encrypt user files and archives, making it impossible to open them. It then drops a file titled "read_me.txt" to the victim machine, which contains the message "Hello, your files are encrypted with RSA-4096 algorithm (http://en.wikipedia.org/wiki/RSA). You will need at least few years to decrypt these files without our software. All your private information for last 3 months were collected and sent to us. To decrypt your files you need to buy our software. The price is $300. To buy our software please contact us at:
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
and provide us your personal code -xxxxxxxxx. After successful purchase we will send your decrypting tool, and your private information will be deleted from our system. If you will not contact us until 07/15/2007 your private information will be shared and you will lost all your data."
However, according to Kaspersky: the claim that user files are sent to the malicious user is false; a modified version of RC4 and not RSA-4096 is used for encryption; and it has always been successful in finding the decryption key for files encrypted by previous versions of Gpcode.
"Kaspersky Lab analysts have also created a decryption routine for encrypted files which will be added to the antivirus databases in the very near future."
Kaspersky has added signatures for Virus.Win32.Gpcode.ai to its Anti-Virus databases, and recommends all users to update their databases.
David Bass
| For the fourth year in a row, IDC has placed content security provider Websense (NASDAQ: WBSN) at the top of the IDC Worldwide Web Security 2011 –…
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