URLZone, which targets computer users in Western Europe, is a botnet of approximately 6,000 hijacked computers that is used primarily to siphon funds from online bank accounts. It steals between $4,000 and $15,000 from each compromised bank account and uses a nifty trick of modifying the withdrawn amount on the bank s web site to avoid detection by the user. URLZone gang realized they were being monitored by white hat researchers and started taking proactive measures to prevent their mule accounts from being exposed.
Source: https://threatpost.com/inside-urlzone-trojan-network-100609/72203/