After today`s update of my anti-virus program it detect something called "BDS/bifrose.cku" back-door program.
Lkf answer from Mod/GM
virustotal scan (http://www.virustotal.com/en/analisis/3c0be0488ed8e3f301be83285291ac41fcc427b8ce9b98f76769bf12d205ae0e-1270159919)
Use antivirus.