Lsas.Trojan-Spy.DOS.Keycopy is a false security warning that appears in order to scare the user into purchasing a rogue-antispyware application Malware Destructor 2009. Lsas.Trojan-Spy.DOS.Keycopy produces this message:

WINDOWS SECURITY ALERT!
Lsas.Trojan-Spy.DOS.Keycopy is suspected to have infected your PC.
This type of virus intercepts entered data and transmits it to a remote server.
Windows Internet Explorer 8
“C:\WINDOWS\ie8\spuninst
Data interception was detected while visiting a website: http://

This is a fake security warning that should be taken only as a sign that your computer is infected with Malware Destructor 2009 which is an actual system virus. In order to remove Malware Destructor 2009 from your computer please follow the instructions bellow.

Source: http://www.spywares-remove.com/remove-lsastrojan-spydoskeycopy