New blackmailing Trojan encrypts files using high-grade 1024-bit RSA key. A security company on Friday asked for help cracking an encryption key central to an extortion scheme that demands money from users whose PCs have been infected by malware.
Kaspersky Lab, a Moscow-based antivirus firm, put out the call for assistance after it discovered a new variant of Gpcode, a Trojan horse that has been used in isolated "ransomware" attacks for the past two years.