{"id":8813,"date":"2026-05-29T16:07:23","date_gmt":"2026-05-29T14:07:23","guid":{"rendered":"https:\/\/mybox.com\/help\/?post_type=manual_kb&#038;p=8813"},"modified":"2026-06-09T10:10:17","modified_gmt":"2026-06-09T08:10:17","slug":"ce-este-un-virus-informatic","status":"publish","type":"manual_kb","link":"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/","title":{"rendered":"Ce este un virus informatic?"},"content":{"rendered":"<div class=\"translation-block translation-block-merged\">\n<p class=\"wp-block-paragraph\">A computer virus is a type of malicious software (malware) designed to infect devices and spread by copying itself to other files, programs, or systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Once activated, a virus can perform unwanted actions such as modifying files, deleting data, disrupting system operation, or allowing unauthorized access to a device.<\/p>\n\n\n\n<\/div>\n\n<div id=\"mybox-1586138313\" class=\"mybox-content 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mesaj<\/span><\/a>\r\n  <\/div>\r\n<\/div><\/div>\n\n<div class=\"translation-block translation-block-merged\"><p class=\"wp-block-paragraph\">Computer viruses are one of several types of malware and are often spread through infected files, email attachments, compromised websites, or removable storage devices.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#How_Computer_Viruses_Work\" >How Computer Viruses Work<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Common_Types_of_Computer_Viruses\" >Common Types of Computer Viruses<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#File-Infector_Viruses\" >File-Infector Viruses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Macro_Viruses\" >Macro Viruses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Boot_Sector_Viruses\" >Boot Sector Viruses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Network-Based_Viruses\" >Network-Based Viruses<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Computer_Virus_vs_Malware\" >Computer Virus vs. Malware<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#How_Devices_Become_Infected\" >How Devices Become Infected<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#How_to_Protect_Against_Computer_Viruses\" >How to Protect Against Computer Viruses<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Keep_Software_Updated\" >Keep Software Updated<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Use_Security_Software\" >Use Security Software<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Download_Software_Carefully\" >Download Software Carefully<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Be_Cautious_with_Email_Attachments\" >Be Cautious with Email Attachments<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Use_Strong_Authentication\" >Use Strong Authentication<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Practical_Implications\" >Practical Implications<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/mybox.com\/help\/ro\/knowledgebase\/what-is-a-computer-virus\/#Summary\" >Summary<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Computer_Viruses_Work\"><\/span>How Computer Viruses Work<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A computer virus typically attaches itself to a file or program.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When the infected file is opened or executed, the virus activates and may:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copy itself to other files<\/li>\n\n\n\n<li>Modify or delete data<\/li>\n\n\n\n<li>Consume system resources<\/li>\n\n\n\n<li>Interfere with normal device operation<\/li>\n\n\n\n<li>Attempt to spread to other systems<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The behavior depends on the specific virus and its intended purpose.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Types_of_Computer_Viruses\"><\/span>Common Types of Computer Viruses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"File-Infector_Viruses\"><\/span>File-Infector Viruses<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">These viruses attach themselves to executable files and activate when the affected program is launched.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Macro_Viruses\"><\/span>Macro Viruses<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Macro viruses are embedded in documents that support scripting or macros, such as spreadsheets and text documents.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They activate when the document is opened and the embedded code is executed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Boot_Sector_Viruses\"><\/span>Boot Sector Viruses<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">These viruses target the boot process of a device by infecting the boot sector of a storage drive.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They load before the operating system starts and can interfere with system startup.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Network-Based_Viruses\"><\/span>Network-Based Viruses<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Some viruses attempt to spread across local networks by exploiting security weaknesses or infected devices.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Computer_Virus_vs_Malware\"><\/span>Computer Virus vs. Malware<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Computer Virus \u2260 Malware<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A virus is a specific type of malware that spreads by replicating itself.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Malware is a broader category that includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Viruses<\/li>\n\n\n\n<li>Worms<\/li>\n\n\n\n<li>Trojans<\/li>\n\n\n\n<li>Ransomware<\/li>\n\n\n\n<li>Spyware<\/li>\n\n\n\n<li>Adware<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Not all malware is a virus, but all computer viruses are malware.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Devices_Become_Infected\"><\/span>How Devices Become Infected<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Common infection methods include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Opening malicious email attachments<\/li>\n\n\n\n<li>Downloading software from untrusted sources<\/li>\n\n\n\n<li>Running infected files<\/li>\n\n\n\n<li>Using outdated software with known vulnerabilities<\/li>\n\n\n\n<li>Connecting infected removable media<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Many modern attacks rely on social engineering to convince users to open malicious content.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Protect_Against_Computer_Viruses\"><\/span>How to Protect Against Computer Viruses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Keep_Software_Updated\"><\/span>Keep Software Updated<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Security updates help fix vulnerabilities that malware may exploit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Use_Security_Software\"><\/span>Use Security Software<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Antivirus and endpoint protection tools can help detect and remove malicious software.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Download_Software_Carefully\"><\/span>Download Software Carefully<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Only install software from trusted sources and verify its authenticity whenever possible.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Be_Cautious_with_Email_Attachments\"><\/span>Be Cautious with Email Attachments<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Unexpected attachments and links should be treated with caution, especially if they come from unknown senders.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Use_Strong_Authentication\"><\/span>Use Strong Authentication<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Strong passwords and multi-factor authentication help reduce the risk of unauthorized access to accounts and devices.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Practical_Implications\"><\/span>Practical Implications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Modern cyber threats are often more sophisticated than traditional computer viruses. Many attacks now involve ransomware, phishing, credential theft, and other forms of malware.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because of this, effective protection requires a combination of software updates, security tools, safe browsing habits, and user awareness.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Summary\"><\/span>Summary<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A computer virus is a type of malware that spreads by replicating itself and infecting files, programs, or systems. Viruses can disrupt normal device operation, damage data, or compromise security.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Regular software updates, security software, and cautious handling of files and email attachments can significantly reduce the risk of infection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","format":"standard","manualknowledgebasecat":[10,42],"manual_kb_tag":[745,986,4153,6591,6592,6593,6594,6595,6596,6597],"class_list":["post-8813","manual_kb","type-manual_kb","status-publish","format-standard","hentry","manualknowledgebasecat-safety","manualknowledgebasecat-miscellaneous","manual_kb_tag-malware","manual_kb_tag-ransomware","manual_kb_tag-antivirus-software","manual_kb_tag-computer-virus","manual_kb_tag-virus-removal","manual_kb_tag-trojan","manual_kb_tag-spyware","manual_kb_tag-adware","manual_kb_tag-worms","manual_kb_tag-file-infector-virus"],"_links":{"self":[{"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb\/8813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb"}],"about":[{"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/types\/manual_kb"}],"author":[{"embeddable":true,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":2,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb\/8813\/revisions"}],"predecessor-version":[{"id":8814,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb\/8813\/revisions\/8814"}],"wp:attachment":[{"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/media?parent=8813"}],"wp:term":[{"taxonomy":"manualknowledgebasecat","embeddable":true,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manualknowledgebasecat?post=8813"},{"taxonomy":"manual_kb_tag","embeddable":true,"href":"https:\/\/mybox.com\/help\/ro\/wp-json\/wp\/v2\/manual_kb_tag?post=8813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}