Malware, short for malicious software, is software designed to disrupt computer operation, gather sensitive information, or gain unauthorized access to computer systems.

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8
votes
2answers
9k views

How can I circumvent XProtect and re-enable Java Applets?

So, Apple has again updated their XProtect malware definitions to block Java Applets. Unfortunately, my wife's employer's VPN requires an Applet to be run in order to fully establish connectivity. She ...
32
votes
5answers
3k views

Is my Mac infected with the Flashback trojan?

I own a 2011 model of MacBook Pro with a Core i7 processor and Snow Leopard. I have found out there is a trojan horse which now controls 600,000 Macs. How can I find out if my MacBook is being ...
20
votes
7answers
1k views

How to limit my Mac's exposure to malware?

With OS X malware increasingly in the news (see the Flashback Trojan issue), is there anything that I should do to increase the security of my Mac and reduce my exposure to malware? What I'm doing ...
1
vote
2answers
118 views

Does my Air have malware if widows pop up when I click on any link?

Every time I click to open a link, other windows start opening. They all want to sell me Detox your Mac or have warnings about how my Mac is at risk or infected. How can I check for malware?
50
votes
3answers
614k views

Is the message “You must change your passcode within 60 minutes” valid / non-malware?

A few minutes ago, after unlocking my phone (iPhone 4, iOS 7.0.1) I got a dialog over the home screen: Passcode Requirement You must change your passcode within 60 minutes and it offered to ...
6
votes
3answers
200 views

Avoiding malware in recommendations?

Occasionally, answers on this site include software recommendations. Let’s assume a "legitimate developer" pretends to have created a useful application that is (secretly) capable of doing harm. How ...
4
votes
2answers
724 views

Flashback malware on Snow Leopard

My Mac OSX Snow Leopard got exploited by the Flashback malware. There's a summary by F-Secure that I'm trying to follow in order to remove it. This link is similar, and provides a little more detail. ...
1
vote
2answers
390 views

My OS closes down after 5 seconds of inactivity (with the alert pop-up)

Since yesterday, when i'm running my computer, it shutDowns after 5 seconds of running. In order to make it work, i need to press continuously the escape key so the popUp alert who close the computer ...
6
votes
3answers
11k views

How do I tell if the Flash Player Installer is a virus?

There's been a couple of trojans recently that imitate the Adobe Flash Player installer one of which is called OSX/flashback.A. (More info here) I've been wary of updating Adobe Flash Player due to ...
5
votes
1answer
771 views

Sudden flash of gray in the background

In the last few days I've had a sudden flash of gray in the background. I'm on MacOS 10.7.5. I'm not able to provide a screenshot because it only happens for a split second, but here is a more or less ...
3
votes
1answer
416 views

Uninstalling Genieo broke my system

Update below, the rest is more or less background information. After discovering a Genieo install, I vaguely recalled it being, well, not trustworthy. After a quick search I knew I wanted to ...
0
votes
1answer
25 views

Sluggish 2013 21.5" El Capitan iMac

My second hand 2013 iMac has been running really slowly. I have already done a complete wipe and reinstall, but that didn't help. trying to get to the bottom of this, and suspecting imminent HDD ...