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Zeus-family trojan spreads by way of spam botnet
A new wave of spam campaigns are dispensing "Gameover,” the only banking trojan in the Zeus family to use peer-to-peer (P2P) communications to hide its activities.
The threat of the malware has become even more pervasive now that criminals are using Cutwail, the world's largest spam botnet, to deliver malicious emails containing Gameover. The spam is made to look like messages from top U.S. banks, researchers at Dell SecureWorks Counter Threat Unit (CTU) found, with the hopes of luring users into clicking attached PDF files.
Brett Stone-Gross, a senior security researcher, told SCMagazine.com Wednesday that the botnet consists of about 200,000 compromised PCs distributing Gameover, which has resulted in more than half a million infections.