DIY construction kit

In 2010 botnets used to steal banking credentials and other purposes of cyber crooks affected more than 7 times as many victims as the previous year, according to a report by a security firm.

Damballa who released the report says that the increase was driven by improvements in DIY botnet construction kits using which criminals could construct new networks. Upgraded infection technology targets a hard drive's master boot record and changes the machine's boot options also played role.