How do I check for malware on my computer

I got a message that malware was removed from my computer after I did a software update. How do I make sure sure that it is all clean now and protect my computer from future attacks.

Ralph beat me to recommending my Mac Malware Guide. (Thanks, Ralph! ) You'll find descriptions of all known Mac malware there, along with a lot of other information.
As for what you just experienced, you evidently got hit with the first Mac malware able to self-install. For more information about it, see About the Flashback malware. Although Flashback appears to have just been aimed at click fraud (getting you to click ads so they get paid), it would be wise to change all your online passwords (especially bank sites, credit card sites, PayPal, Amazon, etc) and keep a close eye on your credit card statements.

Similar Messages

How do I check for Malware? I have a 4giga IMac and she is using 3.9 only running Safari.

I have IMac OSX 10.9.4, 4GB,Processor 3.06 with Intell2Duo. I would like to check for Malware. I run a TechTool Pro 6 every month and that comes up great.
When check how much memory I am using, with only Safari open I am using 3.9 and more of her 4.0 memory. She is very. very slow in processing. I had 4000
trash to clean out and it took her over an hour to expel. Also for some reason Safari will not allow me to click on a link, in my G-mail, and let it go to the page.
It has a sign saying a pop-up blocker is on and will not let me do it. I must open the stamp to look at my e-mails and if I have redirected link now I can do it.
I have not changed my preferences so where is this pop-up blocker?
I have looked at preferences on Safari and Google, which I do not understand Google, and do not see where this blocker could be.
Malware is something I want to make sure is not on my computer. Tech Tool Pro 6 is all I know of and it does not detect Malware.
Help.
Ceil

Your not running windows.
Apple provides malware detection and removal as part of Mac OS X. A lot of the mac os x supposedly malware detection tools are malware themselves.
When check how much memory I am using, with only Safari open I am using 3.9 and more of her 4.0 memory.
Mac OS X uses all the memory it can to improve performance. I'm not familiar with Mavericks to know if this is a problem or not.
She is very. very slow in processing
This is a problem. Doesn't mean you have malware. You could have installed some app with a bug, etc.
1) You want to look in
/Applications/Utilities/activity monitor
& see what the problem apps are.
2) Run etrecheck. Post results here. The author of this tool partipates in ASC.
http://etresoft.com/etrecheck

HT1349 How do I check for Malware?

How do I check my computer for Malware? I use Tech Tool6 now< is there something out there specific to my question?

Stay away from anti-virus software, and see Thomas Reed's site http://www.thesafemac.com for the best guidance on dealing with malware.

HT6114 how to check for malware on my mac

My macpro is running slow all of a sudden. How do i check for malware?

No need, really. You've shown no evidence that malware would be causing the issue. Furthermore, OS X has its own built-in anti-malware protection. It's unlikely your problem is due to malware. See the following:
Things You Can Do To Resolve Slow Downs
If your computer seems to be running slower here are some things you can do:
Start with visits to:     OS X Maintenance - MacAttorney;
                                  The X Lab: The X-FAQs;
                                  The Safe Mac » Mac Performance Guide;
                                  The Safe Mac » The myth of the dirty Mac;
                                  Mac maintenance Quick Assist.
Boot into Safe Mode then repair your hard drive and permissions:
Repair the Hard Drive and Permissions Pre-Lion
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
Repair the Hard Drive - Lion/Mountain Lion/Mavericks
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilites Menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD disk icon and click on the arrow button below.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
Restart your computer normally and see if this has helped any. Next do some maintenance:
For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.
Note: Alsoft ships DW on a bootable DVD that will startup Macs running Snow Leopard or earlier. It cannot start Macs that came with Lion or later pre-installed, however, DW will work on those models.
Suggestions for OS X Maintenance
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or later and should not be installed.
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive.
Helpful Links Regarding Malware Protection
An excellent link to read is Tom Reed's Mac Malware Guide.
Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
See these Apple articles:
          Mac OS X Snow Leopard and malware detection
          OS X Lion- Protect your Mac from malware
          OS X Mountain Lion- Protect your Mac from malware
          About file quarantine in OS X
If you require anti-virus protection I recommend using VirusBarrier Express 1.1.6 or Dr.Web Light both from the App Store. They're both free, and since they're from the App Store, they won't destabilize the system. (Thank you to Thomas Reed for these recommendations.)
Troubleshooting Applications
I recommend downloading a utility such as TinkerTool System, OnyX, Mavericks Cache Cleaner, or Cocktail that you can use for removing old log files and archives, clearing caches, etc. Corrupted cache, log, or temporary files can cause application or OS X crashes as well as kernel panics.
If you have Snow Leopard or Leopard, then for similar repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. Applejack does not work with Lion and later.
Basic Backup
For some people Time Machine will be more than adequate. Time Machine is part of OS X. There are two components:
1. A Time Machine preferences panel as part of System Preferences;
2. A Time Machine application located in the Applications folder. It is
    used to manage backups and to restore backups. Time Machine
    requires a backup drive that is at least twice the capacity of the
    drive being backed up.
Alternatively, get an external drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Carbon Copy Cloner
2. Get Backup
3. Deja Vu
4. SuperDuper!
5. Synk Pro
6. Tri-Backup
Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files. For help with using Time Machine visit Pondini's Time Machine FAQ for help with all things Time Machine.
Referenced software can be found at MacUpdate.
Additional Hints
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
Always maintain at least 15 GBs or 10% of your hard drive's capacity as free space, whichever is greater. OS X is frequently accessing your hard drive, so providing adequate free space will keep things from slowing down.
Check for applications that may be hogging the CPU:
Pre-Mavericks
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Mavericks and later
Open Activity Monitor in the Utilities folder. Select All Processes from the View menu. Click on the CPU tab in the toolbar. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Often this problem occurs because of a corrupted cache or preferences file or an attempt to write to a corrupted log file.

Acmcneill1ug 14, 2014 7:16 AM I have IMac OSX 10.9.4, 4GB,Processor 3.06 with Intell2Duo. I would like to check for Malware. I run a TechTool Pro 6 every month and that comes up great. When check how much memory I am using, with only Safar

Acmcneill1ug 14, 2014 7:16 AM
I have IMac OSX 10.9.4, 4GB,Processor 3.06 with Intell2Duo. I would like to check for Malware. I run a TechTool Pro 6 every month and that comes up great.
When check how much memory I am using, with only Safari open I am using 3.9 and more of her 4.0 memory. She is very. very slow in processing. I had 4000
trash to clean out and it took her over an hour to expel. Also for some reason Safari will not allow me to click on a link, in my G-mail, and let it go to the page.
It has a sign saying a pop-up blocker is on and will not let me do it. I must open the stamp to look at my e-mails and if I have redirected link now I can do it.
I have not changed my preferences so where is this pop-up blocker?
I have looked at preferences on Safari and Google, which I do not understand Google, and do not see where this blocker could be.
Malware is something I want to make sure is not on my computer. Tech Tool Pro 6 is all I know of and it does not detect Malware.
Help.
Ceil

Try Thomas Reed's Adware removal tool. He posts extensively in the communities.
Malware Guide - Adware
Malware Discussion

How can I check for VSearch trojan?

how can I check for VSearch trojan? And then remove it if found?

Helpful Links Regarding Malware Problems
If you are having an immediate problem with ads popping up see The Safe Mac » Adware Removal Guide, AdwareMedic, or Remove unwanted adware that displays pop-up ads and graphics on your Mac - Apple Support.
Open Safari, select Preferences from the Safari menu. Click on Extensions icon in the toolbar. Disable all Extensions. If this stops your problem, then re-enable them one by one until the problem returns. Now remove that extension as it is causing the problem.

How does APEX check for null values in Text Fields on the forms?

Hello all,
How does APEX check for null values in Text Fields on the forms? This might sound trivial but I have a problem with a PL/SQL Validation that I have written.
I have one select list (P108_CLUSTER_ID) and one Text field (P108_PRIVATE_IP). I made P108_CLUSTER_ID to return null value when nothing is selected and assumed P108_PRIVATE_IP to return null value too when nothign is entered in the text field.
All that I need is to validate if P108_PRIVATE_IP is entered when a P108_CLUSTER_ID is selected. i.e it is mandatory to enter Private IP when a cluster is seelcted and following is my Pl/SQL code
Declare
v_valid boolean;
Begin
IF :P108_CLUSTER_ID is NULL and :P108_PRIVATE_IP is NULL THEN
v_valid := TRUE;
ELSIF :P108_CLUSTER_ID is NOT NULL and :P108_PRIVATE_IP is NOT NULL THEN
v_valid := TRUE;
ELSIF :P108_CLUSTER_ID is NOT NULL and :P108_PRIVATE_IP is NULL THEN
v_valid := FALSE;
ELSIF :P108_CLUSTER_ID is NULL and :P108_PRIVATE_IP is NOT NULL THEN
v_valid := FALSE;
END IF;
return v_valid;
END;
My problem is it is returning FALSE for all the cases.It works fine in SQL Command though..When I tried to Debug and use Firebug, I found that Text fields are not stored a null by default but as empty strings "" . Now I tried modifying my PL/SQL to check Private_IP against an empty string. But doesn't help. Can someone please tell me how I need to proceed.
Thanks

See SQL report for LIKE SEARCH I have just explained how Select list return value works..
Cheers,
Hari

How can I check for the existence of an XML file in Illustrator Javascript??

I'm writing a Javascript to run at startup. I want to check for the existence of XML files and process them, if they are available. How can I check for their existence?

Your first line just sets a variable to a string value… getFiles() is a method of Folder… so
var InputXMLDir = Folder( "D:/Brackets/Create_Bracket_Graphics/Input/XML-n-Templates/" );
Not a PC user so I can't remember if the colon is OK…? As you appear to know the file name why bother with a folder get files anyhow you could just check if the file exists then do some thing…
alert( File( "D:/Brackets/Create_Bracket_Graphics/Input/XML-n-Templates/brackets_men_web.xml" ).exists );

Carriage return in textarea - how do I check for and remove it???

I have an html form that has a <textarea> element for user input. I work mainly with Java and some JavaScript. Since carriage returns are permitted in a <textarea> element, upon retrieving the value submitted, my Java and/or JavaScript variables contain carriage returns as well, making the values incomplete.
For Example :
String dataSubmitted = request.getParameter("formInput");
<script language="JavaScript">
var textValue = "<%=dataSubmitted%>";
....//do other stuff
</script>When I view the source of my JSP page, the above statement of code looks like this:
var textValue = "This is some text that
I submitted with a carriage return";I'm putting the text submitted through this form into a mysql database, and when I pull up the values I find that it has recorded the carriage return as well. There is an actual symbol representing a carriage return in the db field.
What I'd like to do is use some Java code to go through each character of the String and find and remove the carriage return, perhaps replacing it with an empty space instead. But how do I check for a carriage return in a String variable?
Also, is there a way to use JavaScript to alert the user when the carriage return button is pressed when they're in the <textarea>?
Any input is appreciated,
Thank You,
-Love2Java

What I'd like to do is use some Java code to go through
each character of the String and find and remove the
carriage return, perhaps replacing it with an empty
space instead. But how do I check for a carriage return
in a String variable?The carriage return is represented by the \r. Generally there is also a newline, the \n. You can use String#replaceAll() to replace occurences of them by a space.
string = string.replaceAll("\r\n", " ");
Also, is there a way to use JavaScript to alert the user
when the carriage return button is pressed when they're
in the <textarea>?You can capture keys using the 'onkeypress' attribute. The keyCode of a the return key is 13. So simply catch that:<textarea onkeypress="if (event.keyCode == 13) alert('You pressed the return button.'); return false;"></textarea>The return false prohibits the linebreak being inserted. If you remove that, then it will be inserted anyway.

How does one check for Updates...

How does one check for Updates when :
Registration
Deactivation
Updates
Menu items are greyed out! ?

Actually, it's a timing issue. Those items are greyed out for a couple of minutes after PPro starts. A little patience and they become available. ;)
Cheers
Eddie
PremiereProPedia (
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- Over 250 free tutorials
- Maintained by editors like
you
Forum FAQ

How do I check for peripheral compatibility, ie HP DesignJet 755CM?

How do I check for peripheral compatibility, ie HP DesignJet 755CM? other older Mac computers?
Thanks.

Usually the best way is by contacting the manufacturer of the peripheral. Manufacturers have the best information for compatibility with other devices for their products.

How to download photoshop for free to my computer window xp

how to download photoshop for free to my computer window xp

Photoshop CC is not supported on Windows XP.
Here is the system requirement for Photoshop CC: http://helpx.adobe.com/x-productkb/policy-pricing/system-requirements-photoshop.html
You can still download photoshop CS6 on XP.
Try the following steps for downloading PS CS6:
Download Adobe application Manager from: http://www.adobe.com/appsmanager/index.html
Launch adobe application manager.
Photoshop CS6 should be shown as available to install.
Let us know if you need any other info.
Regards
Pragya

How do I check for virus or malware on mac osx 10.5.8 safari ?

How do I check my mac osx 10.5.8 safari leopard for virus or malware?

Hello,
ClamXAV, free Virus scanner...
http://www.clamxav.com/
Free Sophos...
http://www.sophos.com/products/enterprise/endpoint/security-and-control/mac/
Little Snitch, stops/alerts outgoing stuff...
http://www.obdev.at/products/littlesnitch/index.html

I just buy iPhone4 first hand on Jan 07,2013 but the warranty expire date How can i check for the date of production?

I was bought iPhone4 16 GB on Jan 07, 2013 from online shop from Laos they told me that this iPhone from Apple in Hongkong (first hand) but I check for the warranty is already expire date. What should we do? I want to know about my iPhone4 first hand or second hand. How can i check?

This will show you warranty status and give you an idea
of when originally sold:
https://selfsolve.apple.com/agreementWarrantyDynamic.do

HT1752 how can I check for SpyBots and other invasion things on my computer

I am beginning to have odd things happen to my computer. Someone told me to check for SpyBots, but I don't know how. I participate on Blog Talk Radio, and was informed they use these spybot things. How do I find out if there are invasive things like this affecting my computer?
In the last 2 days I've had two windows pop up saying I needed to restart the computer. This has never happened before. Any help anyone?

Forget about the advise on the spybots. That person doesn't have the foggiest idea what is going on.
You are having kernel panics. The most likely casue for kernel panics is hardware problems usually RAM that has gone bad.
Go to http://thexlab.com/faqs/kernelpanics.html for a good procedure on how to find out what is causing the kernel panics.
Allan

How do I check for malware on my computer

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