![]() If you're downloading RAR files online, use a reputable file-sharing service. Do not open the file if the name is suspicious or the extension is unfamiliar. For example, a malicious file named “” may appear as a harmless Word document but is, in fact, an executable file.Īlways double-check the names of the files in a RAR file and ensure the extension matches the expected format. Check the File Name And ExtensionĬybercriminals often employ social engineering techniques by disguising malware as legitimate files. Don't extract the file if the contents look suspicious or unfamiliar.Īlso, you can use RAR file extraction tools, like 7-ZIP or PeaZip, as they allow you to preview the files within the RAR archive without fully extracting them, providing an extra layer of safety. ![]() This way, you'll know what's inside and better determine if it is safe to extract. Before extracting the entire archive, it's wise to preview what's in the RAR file before extracting it. Some RAR files may contain multiple files or folders. This will detect and eliminate any potential malware or viruses hidden within the file. Therefore, before opening any RAR file, you must scan it with top-notch and up-to-date antivirus software. This malware can then be used to perform remote code executions (RCE)-one of the dangers of the SMB protocol-on your computer.Īntivirus programs use signature-based scanning and heuristic analysis to identify known malware and suspicious behavior that may indicate the presence of new or unknown threats. They can craft RAR files to exploit these software vulnerabilities and inject malware into your system. If the software you use to open RAR files has security vulnerabilities like a weak password or is outdated, attackers could exploit it. Using a Vulnerable Tool to Open the RAR File However, when you open them, the executable file runs and infects your computer with malware. They're disguised as useful files, like PDF or DOCX files. ![]() Some RAR files may contain malicious executables packed in genuine. Executing Disguised Executable Files Containing Malware These sources may intentionally distribute infected RAR files to compromise your system. Downloading RAR files from untrusted or unknown sources increases the risk of encountering malicious files. One common way to get a virus from a RAR file is by downloading it from an unknown source. ![]()
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