{"id":9322,"date":"2026-02-16T18:20:44","date_gmt":"2026-02-16T17:20:44","guid":{"rendered":"https:\/\/www.datasystem.es\/nuevo\/?p=9322"},"modified":"2026-02-16T18:20:46","modified_gmt":"2026-02-16T17:20:46","slug":"como-detectar-malware-sin-reinstalar-senales-herramientas-y-habitos","status":"publish","type":"post","link":"https:\/\/www.datasystem.es\/nuevo\/como-detectar-malware-sin-reinstalar-senales-herramientas-y-habitos\/","title":{"rendered":"C\u00f3mo detectar malware sin reinstalar: se\u00f1ales, herramientas y h\u00e1bitos"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">No todo rendimiento lento es malware, pero hay se\u00f1ales bastante caracter\u00edsticas que puedes comprobar antes de reinstalar. La idea es confirmar s\u00edntomas, aislar cambios en el navegador y revisar programas\/extensiones que no recuerdas haber instalado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-1-senales-tipicas-las-que-mas-se-repiten\">1) Se\u00f1ales t\u00edpicas (las que m\u00e1s se repiten)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">F\u00edjate si te ocurre alguno de estos puntos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ventanas emergentes (pop\u2011ups) inesperadas y anuncios intrusivos incluso en webs \u201cnormales\u201d.<\/li>\n\n\n\n<li>Redirecciones a p\u00e1ginas raras, pesta\u00f1as nuevas que aparecen solas, o cambios de p\u00e1gina de inicio\/buscador sin permiso.<a href=\"https:\/\/support.google.com\/accounts\/answer\/9924802?hl=es&amp;co=GENIE.Platform%3DDesktop\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>\u200b<\/li>\n\n\n\n<li>Extensiones nuevas en el navegador o apps instaladas que t\u00fa no instalaste.<\/li>\n\n\n\n<li>Lentitud persistente e inexplicable, bloqueos o comportamiento an\u00f3malo general del sistema.<a href=\"https:\/\/www.expressvpn.com\/es\/blog\/indicio-de-malware\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>\u200b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Con dos o m\u00e1s se\u00f1ales a la vez, vale la pena hacer una revisi\u00f3n en serio antes de asumir que \u201ces el PC viejo\u201d.<a rel=\"noreferrer noopener\" target=\"_blank\" href=\"https:\/\/www.expressvpn.com\/es\/blog\/indicio-de-malware\/\"><\/a>\u200b<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/cdn-icons-png.flaticon.com\/512\/554\/554241.png\" alt=\"Malware\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-2-revision-rapida-del-navegador-donde-se-esconde-mucho-adware\">2) Revisi\u00f3n r\u00e1pida del navegador (donde se esconde mucho adware)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Empieza por el navegador porque muchas infecciones \u201cvisibles\u201d son secuestros de configuraci\u00f3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Revisa extensiones una por una y elimina las que no reconozcas.<\/li>\n\n\n\n<li>Comprueba si la p\u00e1gina de inicio, el buscador y la configuraci\u00f3n de \u201cal iniciar\u201d han cambiado sin tu permiso.<a href=\"https:\/\/support.google.com\/accounts\/answer\/9924802?hl=es&amp;co=GENIE.Platform%3DDesktop\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>\u200b<\/li>\n\n\n\n<li>Si hay redirecciones, sospecha de extensiones, notificaciones permitidas y software a\u00f1adido \u201cen paquete\u201d.<a href=\"https:\/\/support.google.com\/accounts\/answer\/9924802?hl=es&amp;co=GENIE.Platform%3DDesktop\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>\u200b<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-3-senales-fuera-del-navegador-el-coste-real-del-malware\">3) Se\u00f1ales fuera del navegador (el coste real del malware)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Si el sistema va lento, se cuelga o se comporta \u201craro\u201d, mira si coincide con descargas recientes, instaladores gratuitos o cracks. Una lentitud fuerte puede estar causada por muchas cosas, pero cuando es persistente y sin explicaci\u00f3n, se considera una se\u00f1al de alerta com\u00fan.<a rel=\"noreferrer noopener\" target=\"_blank\" href=\"https:\/\/www.expressvpn.com\/es\/blog\/indicio-de-malware\/\"><\/a>\u200b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Otro indicador es encontrar programas desconocidos instalados: si no puedes explicar de d\u00f3nde sali\u00f3, tr\u00e1talo como sospechoso.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-4-que-hacer-antes-de-limpiar-para-no-perder-datos\">4) Qu\u00e9 hacer antes de limpiar (para no perder datos)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Haz copia de tus archivos importantes en un medio externo o nube antes de tocar nada serio, porque algunas infecciones pueden empeorar o bloquear archivos.<a href=\"https:\/\/www.veritas.com\/es\/es\/information-center\/3-2-1-backup-rule\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>\u200b<\/li>\n\n\n\n<li>Si necesitas seguir usando el PC, evita introducir contrase\u00f1as en un equipo que sospechas infectado hasta revisar el navegador y quitar extensiones dudosas.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-5-habitos-que-reducen-reinfecciones\">5) H\u00e1bitos que reducen reinfecciones<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Muchos problemas vienen de instaladores con \u201cextras\u201d o permisos de notificaciones abusivos en el navegador. Mant\u00e9n una regla simple: instala software solo de fuentes confiables y revisa extensiones\/permisos si aparecen pop\u2011ups y redirecciones.<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"1080\" style=\"aspect-ratio: 1080 \/ 1080;\" width=\"1080\" controls src=\"https:\/\/www.datasystem.es\/nuevo\/wp-content\/uploads\/2026\/02\/Copia-de-Copia-de-Copia-de-Copia-de-Esquerdo-Reparaciones-.mp4\"><\/video><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.datasystem.es\/nuevo\/\" style=\"border-top-left-radius:64px;border-top-right-radius:64px;border-bottom-left-radius:64px;border-bottom-right-radius:64px;background-color:#267e01\">Vis\u00edtanos!<\/a><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-otros-articulos-interesantes\">Otros art\u00edculos interesantes<\/h3>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-8f761849 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-reparacion-de-ordenadores-a-domicilio-data-system wp-block-embed-reparacion-de-ordenadores-a-domicilio-data-system\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"ZXDR2vuONW\"><a href=\"https:\/\/www.datasystem.es\/nuevo\/firewall-que-es-y-como-configurarlo-en-casa\/\">Firewall, qu\u00e9 es? (y como configurarlo en casa)<\/a><\/blockquote><iframe class=\"wp-embedded-content lazyload\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u00abFirewall, qu\u00e9 es? (y como configurarlo en casa)\u00bb \u2014 SPInformatica\" data-src=\"https:\/\/www.datasystem.es\/nuevo\/firewall-que-es-y-como-configurarlo-en-casa\/embed\/#?secret=IETdD9Wpth#?secret=ZXDR2vuONW\" data-secret=\"ZXDR2vuONW\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-load-mode=\"1\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-reparacion-de-ordenadores-a-domicilio-data-system wp-block-embed-reparacion-de-ordenadores-a-domicilio-data-system\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"3Hle1CHZ3M\"><a href=\"https:\/\/www.datasystem.es\/nuevo\/que-es-dns-y-como-funciona-explicado-facil\/\">Qu\u00e9 es DNS y c\u00f3mo funciona (explicado f\u00e1cil)<\/a><\/blockquote><iframe class=\"wp-embedded-content lazyload\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; 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--smush-placeholder-aspect-ratio: 350\/350;\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.instagram.com\/datasystem.es\/\" rel=\"Red social de datasystem\"><img decoding=\"async\" width=\"350\" height=\"350\" data-id=\"8972\" data-src=\"https:\/\/www.datasystem.es\/nuevo\/wp-content\/smush-webp\/2026\/01\/tiktok-logo-tikok-icon-transparent-tikok-app-logo-free-png-1.png.webp\" alt=\"Instagram\" class=\"wp-image-8972 lazyload\" data-srcset=\"https:\/\/www.datasystem.es\/nuevo\/wp-content\/smush-webp\/2026\/01\/tiktok-logo-tikok-icon-transparent-tikok-app-logo-free-png-1.png.webp 350w, https:\/\/www.datasystem.es\/nuevo\/wp-content\/smush-webp\/2026\/01\/tiktok-logo-tikok-icon-transparent-tikok-app-logo-free-png-1-300x300.png.webp 300w, https:\/\/www.datasystem.es\/nuevo\/wp-content\/smush-webp\/2026\/01\/tiktok-logo-tikok-icon-transparent-tikok-app-logo-free-png-1-150x150.png.webp 150w, https:\/\/www.datasystem.es\/nuevo\/wp-content\/uploads\/2026\/01\/tiktok-logo-tikok-icon-transparent-tikok-app-logo-free-png-1-12x12.png 12w\" data-sizes=\"(max-width: 350px) 100vw, 350px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 350px; --smush-placeholder-aspect-ratio: 350\/350;\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/x.com\/datasystemm\" rel=\"Twitter de datasystem\"><img decoding=\"async\" width=\"320\" height=\"320\" data-id=\"8974\" data-src=\"https:\/\/www.datasystem.es\/nuevo\/wp-content\/smush-webp\/2026\/01\/twitter-x-logo-png_seeklogo-492396-1.png.webp\" alt=\"Twitter\" class=\"wp-image-8974 lazyload\" data-srcset=\"https:\/\/www.datasystem.es\/nuevo\/wp-content\/smush-webp\/2026\/01\/twitter-x-logo-png_seeklogo-492396-1.png.webp 320w, https:\/\/www.datasystem.es\/nuevo\/wp-content\/smush-webp\/2026\/01\/twitter-x-logo-png_seeklogo-492396-1-300x300.png.webp 300w, https:\/\/www.datasystem.es\/nuevo\/wp-content\/smush-webp\/2026\/01\/twitter-x-logo-png_seeklogo-492396-1-150x150.png.webp 150w, https:\/\/www.datasystem.es\/nuevo\/wp-content\/uploads\/2026\/01\/twitter-x-logo-png_seeklogo-492396-1-12x12.png 12w\" data-sizes=\"(max-width: 320px) 100vw, 320px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 320px; --smush-placeholder-aspect-ratio: 320\/320;\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>No todo rendimiento lento es malware, pero hay se\u00f1ales bastante caracter\u00edsticas que puedes comprobar antes de reinstalar. La idea es confirmar s\u00edntomas, aislar cambios en el navegador y revisar programas\/extensiones que no recuerdas haber instalado. 1) Se\u00f1ales t\u00edpicas (las que m\u00e1s se repiten) F\u00edjate si te ocurre alguno de estos puntos: Con dos o m\u00e1s [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":9336,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[152,158,92,179,89,157,153],"tags":[172,97,104],"class_list":["post-9322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-antivirus","category-ciberseguridad","category-consejos-rapidos","category-consejos-sobre-software","category-informacion-sobre-seguridad","category-protege-tus-datos","category-proteger-ordenador","tag-consejos","tag-seguridad","tag-software"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v27.7) - 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