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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38
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3answers
408k 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 ...
31
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 ...
12
votes
4answers
2k views

Full screen ad on iPhone in place of lock screen

I own an iPhone 3GS and use it as personal hotspot for my MacBook Pro via USB. The iPhone is running iOS 5.1.1, and the MacBook is running a Mountain Lion preview. However the question is not ...
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 ...
7
votes
4answers
5k views

MacBook Pro camera and microphone used by malware?

Given the increasing number of reports about malware for Apple computers, I am concerned by the fact that there's no simple way to physically block the camera while I'm using my MacBook Pro. Is it ...
7
votes
8answers
9k views

Random shutter sound

Every once in a while I hear a loud sound from my Mac. It sounds like either a camera shutter or a keychain lock/unlock. It all started a couple of weeks ago. I fear something is snapping shots of my ...
6
votes
2answers
448 views

Logging in to main user turns off the mac

I am not a mac user, and honestly, I have no idea how to use one (besides the terminal). So, a friend asked if I could help them out with fixing their computer. She says the last thing she was on, was ...
6
votes
3answers
195 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 ...
6
votes
3answers
10k 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
3answers
998 views

What does the Flashback malware do?

There was a question about removing the Flashback malware from your OS X machine, but I'm still not clear on what it does. What exactly does the Flashback malware do once it is installed on your Mac?
5
votes
1answer
740 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 ...
5
votes
4answers
2k views

How did my Mac end up with iPhone 4S as my host name in the user prompt in OS X terminal?

The other day I was searching for Xcode iOS 5 tutorials. About a day or two later, I noticed my terminal prompt is now "iPhone4s : myusername". Naturally , my biggest fear is that there could be a ...
5
votes
1answer
996 views

How to securely restore new MacBook air after someone else was first admin user

I've just received my new MacBook Air. (my first Apple computer in 15 years!) Unfortunately, I had it sent to work on a day I wasn't in, and it was mistaken for the new intern's computer. He proceeded ...
5
votes
1answer
719 views

HP Product Research on Activity Log

I'm seeing an item on my activity monitor called 'HP Product Research.' I assume it's associated with some HP Printer drivers that I no long need, and have have removed, but this tracker keeps ...
4
votes
5answers
63k views

How do I examine my iPad for malware?

Lately I occasionally get redirected to other websites when I load some news websites. It could be a banner redirect I guess, but I suspect something more sinister. The iPad is NOT jailbroken and ...
4
votes
2answers
2k views

What is AppSC extremely slowing down my MacBook Pro?

I noticed that my OS X very frequently runs extremely slow and everything lags. I opened up Activity Monitor and I saw that something called AppSC is using up to 95% of the memory. It makes my ...
4
votes
1answer
469 views

How to recover files from the home directory that malware removed on OS X 10.10.5 Yosemite?

Two days ago, somehow, my Mac running OS X Yosemite 10.10.5 got infected by malware and it deleted almost all my files from my home directory. I have no idea how it happened (it wasn't because clicked ...
4
votes
1answer
181 views

Unexpected app “Admin Alert” running on my machine

All of a sudden I noticed an application called "Admin Alert" in my dock. This is a work computer, I'm wondering if this is some sort of "spyware" that our lovely IT department has installed on my ...
4
votes
1answer
1k views

Can I unload com.apple.mrt via launchd or otherwise remedy these errors?

I just realized that the job com.apple.mrt crashes every 10 seconds on my Mac. What exactly is the aim of com.apple.mrt? Apparently it should be a "Malware Removal Tool". Can I remove it from ...
4
votes
1answer
117 views

Possible keylogger? How to remove?

I'm tailing var/log/sys.log and I keep getting this message: Jul 13 23:43:52 mac[redacted lol] syslogagent[19960]: Authentication String htt[space ...
4
votes
2answers
714 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. ...
4
votes
1answer
7k views

How do I check to see if my computer is infected with the OSX/Crisis Trojan?

Just recently, a new trojan for OS X was discovered. Apparently it only affects Snow Leopard and Lion. Whether it does/doesn't affect Mountain Lion is still unknown. The trojan sits on your computer ...
4
votes
3answers
4k views

How to get rid of booby-trapped pop ups to update flash player?

I'm coming across a malicious pop up to update my flash player. The message in the pop up: Warning! Your Adobe Flash Player version is outdated. Security risks. Please update now. I've seen this ...
3
votes
1answer
1k views

How did “Hazel” get on my computer?

I just noticed a thing called "Hazel" has appeared in my System Preferences. I've no idea what it is or how it got there. When I googled hazel mac, it looks like it's a popular app with glowing ...
3
votes
2answers
488 views

Is it possible to hide files from Terminal's ls?

I am saving some files because I need to reinstall OS X, and noticed oddly high numbers of files in some folders. Is it possible for malware to hide files from ls?
3
votes
2answers
232 views

what is “translate” and why does it want access to my keychain?

I use Entourage for my email accounts but I keep getting a pop up saying "translate wants to use your confidential information stored in "[my email account]" in your keychain. Do you want to allow ...
3
votes
3answers
872 views

Did the Java 1.6.0_31 update fix the Flashback trojan problem?

Is the recent Java update of OSX (Java for OS X Lion 2012-002) to 1.6.0_31 also a bug fix for the Flashback malware? The update is described here as: Multiple vulnerabilities exist in Java ...
3
votes
2answers
717 views

Help with a HD reformat and Mountain Lion reinstall due to unknown type of hack, Malware, etc

So, I needed to reformat the HD in my mid 2011 Mac Mini (done) and plan to reinstall Mountain Lion on it. I created an SDXC install disk to do this.  I'm curious to know if the disk2 partition with ...
3
votes
1answer
411 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 ...
3
votes
1answer
109 views

Paste stops working (“CFPasteboardRef: Lock timeout”)

Pasting from the clipboard stopped working on my Mac. Nothing is pasted, and the following line appears many time in syslog. Apr 5 **:**:** *** com.apple.WebKit.WebContent[6583] <Warning>: ...
3
votes
1answer
188 views

Can I determine how the Flashback trojan infected my machine despite disabling Java?

Apple's update on April 17, 2012 detected and deactivated the Flashback trojan. Yet two weeks ago I had following the instructions here. After concluding that my Mac is not infected, I disabled Java. ...
3
votes
4answers
2k views

A security update locked OSX.GenieoDropper.A

I need to launch an app but OSX recognise it as a malware. While launching this app, OSX says "app will damage this computer. You should eject this disk image. It contain OSX.GenieoDropper.A". ...
2
votes
1answer
10k views

Is it possible to download a virus via iPad safari browser?

I understand that PDF reader in iPad can be a security loophole for virus to get through; but beyond that, how easy ( or hard, or even possible ) is for a virus to sneak through iPad safari browser? ...
2
votes
1answer
311 views

Did I expose myself to information-theft via possible malware on iPad by opening an e-mail in Safari?

I received an email from cdhhospitals.org/upload.htm and opened it. I immediately was redirected to a waiting screen. I immediately closed the Safari app. I tried to track this site down and the ...
2
votes
3answers
2k views

Adware removal?

I wanted to watch a show on couchtuner.eu (a friend recommended, I hadn't used the website before). I carelessly followed some Java link to update, and…now I have ads everywhere, pop-ups, etc. Ads ...
2
votes
2answers
260 views

How to remove Italian browser ramsonware? Arma dei Carabinieri - Attenzione! Il Suo computer personale è stato bloccato per

I've a MacBook Pro and Mavericks. My browsers are blocked by ramsonware. It asks 100 $/Euro and says that your computer is blocked by the Italian cops and constantly redirects you to a fake page. ...
2
votes
1answer
5k views

Safari redirecting occasionally to sponsor.adverstitial.com

Recently Safari has been exhibiting an odd behavior - I'm in the middle of browsing something and suddenly the entire page is redirected to a sponsor.adverstitial.com URL. In searching online I see ...
2
votes
4answers
2k views

“App of the Day is a feature of Pet Match” on each page of Safari

Just today-yesterday I started to see the following text almost on each second page I open in Safari. How to disable this? "App of the Day is a feature of Pet Match and uses visual search ...
2
votes
1answer
349 views

Rogue calendar event

I have just had a mysterious thing happen: a calendar event has appeared out of nowhere. At more or less the same time I received a similar email: Now I am used to email spam, but how on earth ...
2
votes
1answer
731 views

How reliable and trustworthy are the Objective-See Security tools (KnockKnock (UI), Dynamic Hijack Scanner and BlockBlock)?

DHS found an issue Is this a false positive? Anybody else with the same message? I installed BlockBlock. What do you think about it? Do you trust those Security tools? BlockBlock (beta) ...
2
votes
1answer
83 views

Does FileVault protect against ransomware?

I've already asked a question about ransomware on OS X in general. But I failed to get a response regarding whether FileVault protects against it. That is what this question is about. I'm also ...
2
votes
2answers
132 views

My iMac will not allow me to log onto my desktop

I got a viruses alert when using my Mac and sadly I reacted ASAP. I gave control to a remote technican via log-me-in and I went through the steps that where asked. After I got off the phone with the ...
2
votes
1answer
89 views

Way to tell where a password dialog is coming from?

Sometimes a piece of software will automatically update itself, and I'll abruptly get the "type your password to allow this" dialog. Is there any verification going on behind the scenes before the OS ...
2
votes
1answer
51 views

Is it too much paranoia to be suspicious of software that require a separate “Helper App”?

I was out trying to find a good system monitor application and decided to give a shot to Monity, which has gotten several good reviews from respectable journals. What bothers me is that the ...
2
votes
1answer
64 views

Concerned I may have accidentally dropped malware (or something) onto my system

First time poster in this part of Stack Exchange - apologies I have posted in the wrong section. In short I have an iMac running 10.8. Most of the time I quite happily get about my business but about ...
2
votes
0answers
366 views

Is this a new virus or adware/malware signature? How do I resolve this?

Since the last 12 hours or so, I've been facing a virus that's somewhat peculiar. When I open websites, and click any link on those websites, I get a new pop-up tab that opens a link from ...
2
votes
1answer
44 views

Is this a virus?

I have been getting this ad popup for the last few months(green banner on the left). It happens on some web sites but not all. Is this a malware infection on my Mac or the web host being compromised ...
1
vote
2answers
78 views

iPad 2 company installed monitoring malware

A company I used to work for installed tracking malware on my iPad 2. It monitors my emails, Facebook, changes my passwords, etc. I did a complete reset at an Apple Store, it is still there. The Apple ...
1
vote
2answers
121 views

How can I guard myself from Wirelurker?

Just saw an article about the vicious malware that is Wirelurker. In short, Wirelurker can attack even non-jailbroken iOS devices, and has great potential to turn these wonderful iOS devices into dumb ...