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It has signature detection on 7, but your trainer isn't a keylogger, if riskware is enabled in settings>threats and exclusions keyloggers (perfect keylogger, non commercial ones will be detected as keylogger, monitor etc.). with v7 the proactive defense on vista is limited (only dangeours behaviour - trojan.generic, worm.generic etc.) because vista didn't allow kernel access prior to service pack 1.
also kis 2009 detects limited code injection stuff on vista (still limitations to the api) as for keyloggers, kernel mode memory patches only (vista sp1 has to be installed, and even if kernel access is allowed, the api still limits the program)
El problema del kernel memory patch es debido a las limitaciones de acceso (obligadas por Microsoft) al api de ciertos sistemas operativos, sobre todo en los sistemas operativos de 64 bits.
No tienes que preocuparte, seguramente es debido a algún driver de teclado, ratón, etc... a mi me salta el pdm keylogger con el vmware.
Saludos