Hello When I recently scanned my computer with NOD32 it discovered this: "Exploit.pdf.Gen trojan" And it also said that it found 4 infiltrations. It's in quarantine now but can it hurt my computer? Should I be worried? And is there anyway to remove it? /TDD
A file in quarantine cannot hurt you. The only issue is whether the file in quarantine is really malware (most likely) or a false positive (not likely). You can upload the file to virustotal.com and get a second opinion on whether the file is malware or not. Do not post the results of virustotal here. You can also use google or some other search engine to help determine whether the file is malware or not. Once you have determined the status of the file, you can remove it from quarantine (actual malware) or restore it to your system (false positive). You can also scan your system with free programs such as Malwarebytes and A-squared Free.
PDF files may contain a script which is usually obfuscated when it's malicious. Like any other scripts, it's impossible to tell what it does without seeing the code, but I assume it could download other malware from the web.
Have you implemented the latest critical updates for Adobe Reader and Acrobat ? Turn off Javascript and leaving it off, helps.