Slavik, Monstr, Umbro


Slavik is a Russion hacker who is the author of the Zeus, a trojan horse that steals banking information by Man-in-the-browser keystroke logging and Form Grabbing. In June 2009, security company Prevx discovered that Zeus had compromised over 74,000 FTP accounts on websites of such companies as the Bank of America, NASA,, ABC, Oracle,, Cisco, Amazon, and BusinessWeek.


He retired to developing Zeus and had given the source code and rights to sell Zeus to Harderman, the author of SpyEye Trojan.


Sold the source code to Harderman.

He decided to move away from selling his Trojan and supporting all of his customers to developing infrastructure that can be rented and becoming part of a larger organised crime group

He is still developing Zeus and adding more features.