A new version of the Zeus financial malware uses peer-to-peer technology to improve its defenses.
The bug previously relied on a series of randomly generated domain names to receive updates,
But "a few weeks ago I've noticed that no new … domain names have been registered by the criminals," Swiss security expert Roman Hssy
The new version, though to be a custom variant made by one fraud gang, uses a peer-to-peer system to receive updates by connecting to other infected computers — communicating with about 100,000 unique Internet Protocol addresses in 24 hours, the article said. The researcher was able to view this traffic because the Zeus variant relied on a single domain name to receive instructions and transmit stolen data, the article said.