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Elk Cloner - Wikipedia
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class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Modifica la dimensione, la larghezza e il colore del testo" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Aspetto" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance 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user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:CreaUtenza&returnto=Elk+Cloner" title="Si consiglia di registrarsi e di effettuare l'accesso, anche se non è obbligatorio" class=""><span>registrati</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:Entra&returnto=Elk+Cloner" title="Si consiglia di effettuare l'accesso, anche se non è obbligatorio [o]" accesskey="o" class=""><span>entra</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Altre opzioni" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Strumenti personali" > <label 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id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Speciale:MieiContributi" title="Un elenco delle modifiche fatte da questo indirizzo IP [y]" accesskey="y"><span>contributi</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Speciale:MieDiscussioni" title="Discussioni sulle modifiche fatte da questo indirizzo IP [n]" accesskey="n"><span>discussioni</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Sito"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Indice" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indice</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Descrizione" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Descrizione"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Descrizione</span> </div> </a> <ul id="toc-Descrizione-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Nascita_del_virus" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Nascita_del_virus"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Nascita del virus</span> </div> </a> <ul id="toc-Nascita_del_virus-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Primo_virus" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Primo_virus"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Primo virus</span> </div> </a> <ul id="toc-Primo_virus-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostra/Nascondi l'indice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostra/Nascondi l'indice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Elk Cloner</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 15 lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-15" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">15 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Elk_cloner" title="Elk cloner - catalano" lang="ca" hreflang="ca" data-title="Elk cloner" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - tedesco" lang="de" hreflang="de" data-title="Elk Cloner" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - inglese" lang="en" hreflang="en" data-title="Elk Cloner" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - spagnolo" lang="es" hreflang="es" data-title="Elk Cloner" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - indonesiano" lang="id" hreflang="id" data-title="Elk Cloner" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - islandese" lang="is" hreflang="is" data-title="Elk Cloner" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - lombardo" lang="lmo" hreflang="lmo" data-title="Elk Cloner" data-language-autonym="Lombard" data-language-local-name="lombardo" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - olandese" lang="nl" hreflang="nl" data-title="Elk Cloner" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - polacco" lang="pl" hreflang="pl" data-title="Elk Cloner" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - portoghese" lang="pt" hreflang="pt" data-title="Elk Cloner" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - russo" lang="ru" hreflang="ru" data-title="Elk Cloner" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - svedese" lang="sv" hreflang="sv" data-title="Elk Cloner" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - turco" lang="tr" hreflang="tr" data-title="Elk Cloner" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - ucraino" lang="uk" hreflang="uk" data-title="Elk Cloner" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/Elk_Cloner" title="Elk Cloner - cinese" lang="zh" hreflang="zh" data-title="Elk Cloner" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1331418#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespace"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Elk_Cloner" title="Vedi la voce [c]" accesskey="c"><span>Voce</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussione:Elk_Cloner" rel="discussion" title="Vedi le discussioni relative a questa pagina [t]" accesskey="t"><span>Discussione</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Cambia versione linguistica" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">italiano</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visite"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Elk_Cloner"><span>Leggi</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Elk_Cloner&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Elk_Cloner&action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Elk_Cloner&action=history" title="Versioni precedenti di questa pagina [h]" accesskey="h"><span>Cronologia</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Strumenti" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Strumenti</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Strumenti</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">nascondi</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Altre opzioni" > <div class="vector-menu-heading"> Azioni </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Elk_Cloner"><span>Leggi</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Elk_Cloner&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Elk_Cloner&action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Elk_Cloner&action=history"><span>Cronologia</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generale </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speciale:PuntanoQui/Elk_Cloner" title="Elenco di tutte le pagine che sono collegate a questa [j]" accesskey="j"><span>Puntano qui</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speciale:ModificheCorrelate/Elk_Cloner" rel="nofollow" title="Elenco delle ultime modifiche alle pagine collegate a questa [k]" accesskey="k"><span>Modifiche correlate</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speciale:PagineSpeciali" title="Elenco di tutte le pagine speciali [q]" accesskey="q"><span>Pagine speciali</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Elk_Cloner&oldid=141198026" title="Collegamento permanente a questa versione di questa pagina"><span>Link permanente</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Elk_Cloner&action=info" title="Ulteriori informazioni su questa pagina"><span>Informazioni pagina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Speciale:Cita&page=Elk_Cloner&id=141198026&wpFormIdentifier=titleform" title="Informazioni su come citare questa pagina"><span>Cita questa voce</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Speciale:UrlShortener&url=https%3A%2F%2Fit.wikipedia.org%2Fwiki%2FElk_Cloner"><span>Ottieni URL breve</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Speciale:QrCode&url=https%3A%2F%2Fit.wikipedia.org%2Fwiki%2FElk_Cloner"><span>Scarica codice QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Stampa/esporta </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Speciale:Libro&bookcmd=book_creator&referer=Elk+Cloner"><span>Crea un libro</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Speciale:DownloadAsPdf&page=Elk_Cloner&action=show-download-screen"><span>Scarica come PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Elk_Cloner&printable=yes" title="Versione stampabile di questa pagina [p]" accesskey="p"><span>Versione stampabile</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In altri progetti </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1331418" title="Collegamento all'elemento connesso dell'archivio dati [g]" accesskey="g"><span>Elemento Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aspetto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">nascondi</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><p><b>Elk Cloner</b> è il primo <a href="/wiki/Virus_(informatica)" title="Virus (informatica)">virus per computer</a> che si conosca. È stato scritto nel <a href="/wiki/1982" title="1982">1982</a> dall'allora quindicenne <a href="/wiki/Rich_Skrenta" title="Rich Skrenta">Richard "Rich" Skrenta</a> per il sistema operativo <a href="/wiki/Apple_DOS" title="Apple DOS">Apple DOS</a> del <a href="/wiki/Personal_computer" title="Personal computer">personal computer</a> <a href="/wiki/Apple_II" title="Apple II">Apple II</a>.<sup id="cite_ref-topten_1-0" class="reference"><a href="#cite_note-topten-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-tech_2-0" class="reference"><a href="#cite_note-tech-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-info_3-0" class="reference"><a href="#cite_note-info-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Descrizione">Descrizione</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Elk_Cloner&veaction=edit&section=1" title="Modifica la sezione Descrizione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Elk_Cloner&action=edit&section=1" title="Edit section's source code: Descrizione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il virus si trasmette avviando un computer con un dischetto dell'Apple DOS infetto. Il codice malevolo viene salvato nel settore di <a href="/wiki/Boot" title="Boot">boot</a> e viene perciò caricato all'avvio della macchina insieme al <a href="/wiki/Sistema_operativo" title="Sistema operativo">sistema operativo</a>, e poi resta residente in memoria. A quel punto, ogni volta che l'utente chiede l'elenco dei file di un altro dischetto con il comando <code>catalog</code>, il virus scrive una copia di se stesso nel settore di boot di quel dischetto, infettandolo.<sup id="cite_ref-topten_1-1" class="reference"><a href="#cite_note-topten-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-tech_2-1" class="reference"><a href="#cite_note-tech-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>Il virus non è molto dannoso perché è stato scritto solo per arrecare disturbo. Si limita infatti a mostrare sullo schermo, dopo il cinquantesimo avvio, il seguente messaggio:<sup id="cite_ref-tech_2-2" class="reference"><a href="#cite_note-tech-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-info_3-1" class="reference"><a href="#cite_note-info-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <style data-mw-deduplicate="TemplateStyles:r139517313">.mw-parser-output .itwiki-template-citazione{margin-bottom:.5em;font-size:95%;padding-left:2.4em;padding-right:1.2em}.mw-parser-output .itwiki-template-citazione-doppia{display:flex;gap:1.2em}.mw-parser-output .itwiki-template-citazione-doppia>div{width:0;flex:1 1 0}.mw-parser-output .itwiki-template-citazione-footer{padding:0 1.2em 0 0;margin:0}</style><div class="itwiki-template-citazione"> <div class="itwiki-template-citazione-singola"> <p>«Elk Cloner: The program with a personality<br /> It will get on all your disks<br /> It will infiltrate your chips<br /> Yes it's Cloner!<br /><br /> It will stick to you like glue<br /> It will modify RAM too<br /> Send in the Cloner!» </p> </div></div> <div class="mw-heading mw-heading2"><h2 id="Nascita_del_virus">Nascita del virus</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Elk_Cloner&veaction=edit&section=2" title="Modifica la sezione Nascita del virus" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Elk_Cloner&action=edit&section=2" title="Edit section's source code: Nascita del virus"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Rich Skrenta era un ragazzino appassionato di <a href="/wiki/Elettronica" title="Elettronica">elettronica</a>. Nel <a href="/wiki/1981" title="1981">1981</a> ricevette come regalo di <a href="/wiki/Natale" title="Natale">Natale</a> un <a href="/wiki/Apple_II" title="Apple II">Apple II</a> e, com'era d'uso all'epoca, cominciò a scambiare <a href="/wiki/Pirateria_informatica" title="Pirateria informatica">copie di giochi piratati</a> con i suoi compagni di scuola. Ma Rich era anche un amante degli scherzi: ai software contenuti nei dischetti che passavano per le sue mani iniziò ad apportare delle modifiche in modo da bloccare l'esecuzione del gioco dopo un certo numero di avvii facendo nel contempo apparire un messaggio sullo schermo. Skrenta disse al riguardo:<sup id="cite_ref-info_3-2" class="reference"><a href="#cite_note-info-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-sym_4-0" class="reference"><a href="#cite_note-sym-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r139517313"><div class="itwiki-template-citazione"> <div class="itwiki-template-citazione-singola"> <p>«Giocavo degli scherzi ai miei compagni alterando le copie dei giochi piratati per farli auto-distruggere dopo un certo numero di partite. Gli davo un nuovo gioco, loro abboccavano, ma poi il gioco cessava di funzionare con un mio commento scherzoso sullo schermo: "9th grade humor at work here".» </p> </div><p class="itwiki-template-citazione-footer">(<small>Rich Skrenta</small>)</p></div> <p>Lentamente gli amici cominciarono a non scambiare più i giochi con Rich e lui iniziò a studiare un modo per poter infettare i dischetti senza averli materialmente in mano. A Rich venne l'idea di un "qualcosa" da lasciare in memoria in un computer che avrebbe potuto infettare qualsiasi disco fosse stato inserito in quella macchina anche in sua assenza. Sviluppò quell'idea creando quello che in seguito sarebbe stato definito un "<a href="/wiki/Boot_sector" title="Boot sector">boot sector</a> virus", un virus residente sul settore di avvio del dischetto, un tipo di virus che viene caricato durante il boot del computer insieme al sistema operativo.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Il virus fu poi utilizzato per infettare un computer della scuola che frequentava:<sup id="cite_ref-sym_4-1" class="reference"><a href="#cite_note-sym-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r139517313"><div class="itwiki-template-citazione"> <div class="itwiki-template-citazione-singola"> <p>«Maturai l'idea di lasciare un qualcosa nel sistema operativo dell'Apple II della scuola. Il prossimo utente che lo avrebbe usato, se non avesse fatto un riavvio pulito con un suo disco, sarebbe stato colpito dal codice che avevo lasciato. Capii che un tale programma auto-propagante poteva essere scritto e che, piuttosto che farlo scoprire subito, potevo lasciarlo latente così che si potesse diffondere dalla prima persona ad altre ancora. Scrissi Elk Cloner e gli detti poi un bell'inizio di vita infettando tutti i dischi su cui potevo mettere sopra le mani.» </p> </div><p class="itwiki-template-citazione-footer">(<small>Rich Skrenta</small>)</p></div> <div class="mw-heading mw-heading2"><h2 id="Primo_virus">Primo virus</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Elk_Cloner&veaction=edit&section=3" title="Modifica la sezione Primo virus" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Elk_Cloner&action=edit&section=3" title="Edit section's source code: Primo virus"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Anche se Elk Cloner è considerato il primo virus informatico della storia, in realtà non è il primo <a href="/wiki/Malware" title="Malware">malware</a> che sia stato scritto: questo titolo appartiene a <a href="/wiki/Creeper_(worm)" title="Creeper (worm)">Creeper</a>, creato nel <a href="/wiki/1972" title="1972">1972</a> da <a href="/w/index.php?title=Robert_Thomas_(informatico)&action=edit&redlink=1" class="new" title="Robert Thomas (informatico) (la pagina non esiste)">Robert Thomas</a>, un <a href="/wiki/Informatico" title="Informatico">informatico</a> che lavorava presso <a href="/wiki/BBN_Technologies" class="mw-redirect" title="BBN Technologies">BBN</a>.<sup id="cite_ref-creeper_6-0" class="reference"><a href="#cite_note-creeper-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Creeper però non è considerato il primo virus bensì il primo <a href="/wiki/Worm" title="Worm">worm</a>: un worm, infatti, spedisce una propria copia verso altri computer usando un collegamento di rete, una <a href="/wiki/E-mail" class="mw-redirect" title="E-mail">e-mail</a> o <a href="/wiki/Internet" title="Internet">internet</a> mentre un virus per diffondersi attacca una copia di se stesso ad un altro oggetto, come nel caso di Elk Cloner che si aggancia al codice di boot di un dischetto.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Elk_Cloner&veaction=edit&section=4" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Elk_Cloner&action=edit&section=4" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-topten-1"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-topten_1-0">a</a></i></sup> <sup><i><a href="#cite_ref-topten_1-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> Iain Thomson , Shaun Nichols, <a rel="nofollow" class="external text" href="http://www.pcauthority.com.au/News/143993,top-ten-worst-viruses.aspx"><span style="font-style:italic;">Top ten worst viruses</span></a>, su <span style="font-style:italic;">pcauthority.com.au</span>, PC & Tech Authority, 04/05/2009. <small>URL consultato il 07/05/2015</small>.</cite></span> </li> <li id="cite_note-tech-2"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-tech_2-0">a</a></i></sup> <sup><i><a href="#cite_ref-tech_2-1">b</a></i></sup> <sup><i><a href="#cite_ref-tech_2-2">c</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> Margaret Rouse, <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150429201017/http://searchsecurity.techtarget.com/definition/Elk-Cloner"><span style="font-style:italic;">Elk Cloner</span></a>, su <span style="font-style:italic;">searchsecurity.techtarget.com</span>, Tech Target. <small>URL consultato il 07/05/2015</small> <small>(archiviato dall'<abbr title="http://searchsecurity.techtarget.com/definition/Elk-Cloner">url originale</abbr> il 29 aprile 2015)</small>.</cite></span> </li> <li id="cite_note-info-3"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-info_3-0">a</a></i></sup> <sup><i><a href="#cite_ref-info_3-1">b</a></i></sup> <sup><i><a href="#cite_ref-info_3-2">c</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110724010543/http://www.infoniac.com/hi-tech/list-of-computer-viruses-developed-in-1980s.html"><span style="font-style:italic;">List of computer viruses developed in 1980s</span></a>, su <span style="font-style:italic;">infoniac.com</span>, Info NIAC, 07/09/2009. <small>URL consultato il 07/05/2015</small> <small>(archiviato dall'<abbr title="http://www.infoniac.com/hi-tech/list-of-computer-viruses-developed-in-1980s.html">url originale</abbr> il 24 luglio 2011)</small>.</cite></span> </li> <li id="cite_note-sym-4"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-sym_4-0">a</a></i></sup> <sup><i><a href="#cite_ref-sym_4-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> Jeremy Paquette, <a rel="nofollow" class="external text" href="https://www.symantec.com/connect/articles/history-viruses"><span style="font-style:italic;">History of viruses</span></a>, su <span style="font-style:italic;">symantec.com</span>, Symantec, 16/07/2000. <small>URL consultato il 07/05/2015</small>.</cite></span> </li> <li id="cite_note-5"><a href="#cite_ref-5"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.smh.com.au/articles/2007/09/01/1188671795625.html"><span style="font-style:italic;">First virus hatched as a practical joke</span></a>, su <span style="font-style:italic;">smh.com.au</span>, The Sidney Morning Herald, 03/07/2007. <small>URL consultato il 07/05/2015</small>.</cite></span> </li> <li id="cite_note-creeper-6"><a href="#cite_ref-creeper_6-0"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://virus.wikidot.com/creeper"><span style="font-style:italic;">Descrizione di Creeper</span></a>, su <span style="font-style:italic;">virus.wikidot.com</span>, Virus.wikidot. <small>URL consultato il 10/05/2015</small>.</cite></span> </li> <li id="cite_note-7"><a href="#cite_ref-7"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://scienceline.ucsb.edu/getkey.php?key=52"><span style="font-style:italic;">What is the difference between a computer virus and a computer worm?</span></a>, su <span style="font-style:italic;">scienceline.ucsb.edu</span>, UCSB ScienceLine. <small>URL consultato il 10/05/2015</small>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Elk_Cloner&veaction=edit&section=5" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Elk_Cloner&action=edit&section=5" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Creeper_(worm)" title="Creeper (worm)">Creeper</a>, il primo <a href="/wiki/Worm" title="Worm">worm</a> della storia</li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Elk_Cloner&veaction=edit&section=6" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Elk_Cloner&action=edit&section=6" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.skrenta.com/cloner/clone-src.txt"><span style="font-style:italic;">Codice sorgente in assembly 6502 del virus Elk Cloner</span></a> (<span style="font-weight: bolder; font-size:80%"><abbr title="documento di puro testo">TXT</abbr></span>), su <span style="font-style:italic;">skrenta.com</span>.</cite></li></ul> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-grow: 1"><style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-os 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