Not trying to spark a religious war here, but in my very limited experience using macs in the last 3 years, my AV has flagged viruses before: some in copying data from my windows pc, but sometimes stuff sneaking through via my corporate email server. I suppose some could have been windows viruses which might not have been run-able on my system, but some were macro viruses in Word documents. Even if it couldn't run on my mac, I wouldn't want to pass a virus to a windows user, especially now-a-days with the advent of ransome ware. According to: ' OSX/Dok Security analysis firm CheckPoint Software Technologies spotted a new OS X malware at the end of April 2017. Apple rushed to block it. The macOS Trojan horse appeared to be able to bypass Apple’s protections and could hijack all traffic entering and leaving a Mac without a user’s knowledge - even traffic on SSL-TLS encrypted connections.

These three days my browsers suddenly became very slow - to the point it took me too long to register here. So I decided to full scan with avast free. For Mac users, Avast offers two separate security suites: Avast Security and Avast Security Pro. Avast Security is the company’s free offering for Mac users. It includes anti-malware security, a WiFi scanner, and also protects against web- and email-based threats. In addition to the 160-170 files that Avast detected after the definition update, it also found 25-30 files in Clamxav that it detected as infected with VBS Malware-gen and quarantined them. I did a definition update just now and it came back that I was up to date, so it did NOT download a patched definition set.

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OSX/Dok was even signed with a valid developer certificate (authenticated by Apple) according to CheckPoint’s blog post. It is likely that the hackers accessed a legitimate developers’ account and used that certificate. Because the malware had a certificate, macOS’s Gatekeeper would have recognized the app as legitimate, and therefore not prevented its execution. Apple has since revoked that developer certificate and updated XProtect, it’s malware signature system.

Francine Francine Schwieder. You'll probably want to repair permissions from Disk Utility afterwards. As I recall I also edited some file that was there to list my additions (that might have been in Panther), Didn't see such a file in the Leopard Cosmos saver, so what I did was just rename my own astro photos to the same thing that was already there, then dragged my files into the Resources folder replacing what was there with mine. I just added some more, bringing my total up to 'Cosmos18' and it still works fine. Photo screensaver for mac custom photos.

The attacker could gain access to all victim communication by redirecting traffic through a malicious proxy server, there's more information about how the attack worked here. OSX/Dok was targeting OS X users via an email phishing campaign. The best way to avoid falling fowl to such an attempt in the future is not to respond to emails that require you to enter a password or install anything.

Xagent Xagent is capable of stealing passwords, taking screenshots and grabbing iPhone backups stored on your Mac. It's thought to be the work of the APT28 cybercrime group, according to Bitdefender. OSX/Pirrit OSX/Pirrit was apparently hidden in cracked versions of Microsoft Office or Adobe Photoshop found online. It would gain root privileges and create a new account in order to install more software, according to Cybereason researcher Amit Serper in this report. MacDownloader In February 2017 researchers found the MacDownloaded software lurking in a fake update to Adobe Flash. When the installer is run you'll get an alert claiming that there is adware on your Mac. You'll be asked to click to 'remove' the adware, and when you enter your password on your Mac the MacDownloader malware will attempt to transmit data including your Keychain (so that's your usernames, passwords, PINs, credit card numbers) to a remote server.

Luckily the threat seems to be contained for now: the remote server it the malware tries to connect is now offline. The best way to avoid such attacks is to always check on Adobe's site to see if there is an update to Flash you should be installing. The MacDownloader malware is thought to have been created by Iranian hackers and was specifically targetted at the US defense industry.

It was located on a fake site designed to target the US defence industry (so likely not yourself). In this case the phishing attempt would have been activated via a Flash file, and since Apple has stopped Flash opening by default, again this is unlikely to have affected you. Word macro virus PC users have had to contend with macro viruses for a long time. Applications, such as Microsoft Office, Excel, and Powerpoint allow macro programs to be embedded in documents. When these document are opened the macros are run automatically which can cause problems. Mac versions of these programs haven't had an issue with malware concealed in macros because since when Apple released Office for Mac 2008 it removed macro support. However, the 2011 version of Office reintroduced macros, and there has now been malware discovered in a Word macro, in a Word doc about Trump.