Trojans are malicious applications that pose themselves as legitimate software in order to trick users to install them. Once on the victim's machine, it may run any number of malicious process to steal vital information or inflict damage to other software.
From their website:
1)Targetted keylogging(logs only the keys from the specifyed windows)
2)keystrokes will mail to the email id,daily or the log size is over
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3)firewall bypassing by injecting code into IE and sending mail
4)Deleting all Cookies at installation.
5)EXE size is 8.5kb