Virus scan

While entering a website, a message popped up for a necessary virus scan, that took over the browser. Started scanning for viruses under the name "personal virus scan". Has anyone heard of this, and how do I know if my Mac truly has a virus.

There are only two occasions when you need an antivirus on a Mac:
# If you run any flavor of Windows (200, 2003, XP, Vista, 7, etc.) in any fashion (BootCamp, VMWare, Parallels, VirtualBox), it is just as vulnerable as on a PC, so it needs its antivirus.
# If you receive files from PC's which you then send to other PC's. While the virus and other malware they may contain is harmless for the Mac, you could become a virus distributor, so as a courtesy you should scan them before moving them forward.
Macro virus on MS Office products used to be a problem with older versions of Office:Mac. However, the latest version doesn't have the VirtualBasic interpreter for now so that problem solved itself.

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  • How do i run a virus scan on my macbook pro?

    I have been told by student finance to run a virus scan as someone has hacked into my account and changed the bank details how do I do this?

    Hacking of financial accounts happens, and it does not require access to your computer, either physically or via malware. Although there is Mac malware, there's none that you are likely to be infected with at the moment. See my Mac Malware Guide.  Most likely that answer was simply a catch-all answer from someone used to dealing with Windows machines.
    However, if you really want to run a scan, use ClamXav. If it finds any malware, post the details here before panicking... most likely, it's just Windows malware attached to an e-mail message or something. (If it's actually Mac malware, the name of the malware will include the text "OSX".) Also, note that you should not let any anti-virus software delete e-mail messages, if they are infected, as that will corrupt the mailbox containing the message.

  • How do I get rid of these annoying virus scan pop-up windows?!?

    Every time I get on my laptop, these stupid virus scan windows pop up and they won't go away! No matter if I press Eject or Cancel, and as you can see, there is NO option to x it out! Only the yellow and green buttons show up, but the red X button does not! I took a picture of four of them and then all ten that are open. It seems more keep opening up whenever another program opens or seems to be running in the background! It's so frustrating! Has anyone else ever experienced this? I have the 2008 black MacBook. PLEASE HELP!!!!!

    You have some kind of anti-virus software installed, which should probably be removed. I can't immediately identify the icon, though. When these scans are running, open Activity Monitor (found in the Utilities folder in your Applications folder), click the CPU tab and make sure the items with high CPU usage numbers are sorted to the top. Then take a screenshot of the Activity Monitor window and post it here.
    Make a screenshot by following the directions here:
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    Be sure no sensitive personal information is displayed. To add that image to a post here, click the camera icon in the post editor toolbar.

  • When downloading a file, how do I tell Firefox to not do a virus scan of files with specific extensions such a .gif files?

    I'm using AVG Free as my anti-virus program and always use the latest version. I have set scanning options in AVG to skip the scanning of gif and jpg files but that seems to be ignored when I am downloading a very small file of either type. The "Downloads" (Ctrl J) pop-up window shows the progress of the download and scan. At times, the virus scan is so miserably slow for simple gif and jpg files that it is a while until I can once more move my mouse cursor.
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    Unfortunately, I continue to have the problem. Just to make sure, following your suggestion, I shut down Firefox then restarted it but had the same result. Similarly, I rebooted after making the changes but again, no difference. Ah well...
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  • Proxy upgrade from SP1 to SP5 doesn't work anymore for virus scanning.

    Upgraded from SP1 to SP5 and the virus scanning updates no longer work. No changes have been made it is a complete carbon copy using the migrate button. No ip addresses have been altered nor has the ports been changed. I've tried SP2, 3 & 4 and they too fail with a 504 error log. I turned SP1 back on and it works first time.
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    Hi
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  • Why can't i get virus scan to work with downloads

    I had Firefox before,and everytime I downloaded a file it scanned it. Now no matter what I do it will not run a virus scan!

    Firefox doesn't do the "AV scan", it hands the scan off to the "registered" anti-virus application that you have installed. The "scan" should be done so fast that you shouldn't see more than a flash instance from Firefox of a scan being performed on the downloaded file, even if it is a large file like a 360Mb ISO image.
    If you saw (or see) the download scan dialog run for like 4 to 5 seconds, or more, '''a scan isn't actually being performed''' - Firefox is giving you a misleading indication that a scan is being performed, when it isn't. ''It's like Firefox is blowing smoke up your arse, with a false indication. ''
    I filed a Bug about this issue almost two years ago and it remains UNCONFIRMED. I only discovered it because I was doing am initial load of software on a PC that I had just built for myself, the first brand new one in over ten years, at the time. I was using a newly installed Firefox to download the Anti-Virus application I was going to install, and Firefox showed the download was being scanned, when I didn't even have an AV program installed on Windows 2000!<br />
    https://bugzilla.mozilla.org/show_bug.cgi?id=480855
    Three similar Bugs that others have filed. <br />
    https://bugzilla.mozilla.org/show_bug.cgi?id=461989 <br />
    https://bugzilla.mozilla.org/show_bug.cgi?id=501645 <br />
    https://bugzilla.mozilla.org/show_bug.cgi?id=530307
    I can't even find a list of the exact anti-virus applications that have the proper "hooks" in Windows that Firefox uses to "connect" the file being downloaded with the AV application - from either Microsoft or from Mozilla.
    IMO, that feature is broken at least, and at the worst it gives an invaild indication that a scan is being performed when it isn't because the user either doesn't even have an AV application installed, or has an AV program that isn't compatible with this feature - I think Firefox should tell the user in both those situations.

  • The text 'Not Virus Scanned' is prepended to my subject lines

    In iCloud (mac.com) messages I send,   the text
    "[Not Virus Scanned]" - it is being pre-pended to the subject line.
    I hope that someone in the Apple/iCloud operations facility will actually look at what your
    systems are doing. And I hope it is not the user named  "Winston Churchill".
    Background:
    Back in August 2012, someone asked whether Apple was virus scanning emails:
    John W 1980
    Aug 8, 2012 4:12 PM 
    I reveived a password protected pdf by email. The subject line was marked [Not Virus Scanned]. Was this mark applied by the iCloud server?
    iCloud 
    This solved my question by Winston Churchill  on Aug 8, 2012 4:28 PM 
    Welcome to the Apple Community.
    No, it wasn't added by Apple
    See the answer in context 
    I have attached an email header (edited for privacy) to show this:
    "Oracle Communications Messaging Server" running on st11p00mm-asmtp004.mac.com
    Which is handling the messages, is running Fsecure Proofpoint, or something that is claiming to
    be - SO apparently iCloud IS doing virus scanning, and has chosen to corrupt our Email subject lines
    rather than simply stick to the conventional behavior of using SMTP headers to flag virus scan status.
    The outgoing subject was   "Re: ...."
    after passing through
    st11p00mm-asmtp004.mac.com ([17.172.81.3])
    (Oracle Communications Messaging Server 7u4-23.01(7.0.4.23.0) 64bit (built Aug
    10 2011)) with ESMTPSA id <[email protected]>
    Which IS an Apple system,
    the subject reads 
    [Not Virus Scanned] Re: ....
    What else is Apple editing on the email it handles?
    Return-path: <[email protected]>
    Received: from st11p00mm-asmtp004.mac.com ([17.172.81.3])
    by ms02552.mac.com (Oracle Communications Messaging Server 7u4-26.01
    (7.0.4.26.0) 64bit (built Jul 13 2012))
    with ESMTP id <[email protected]> for [email protected]; Thu,
    10 Jan 2013 19:40:24 +0000 (GMT)
    Original-recipient: rfc822;[email protected]
    Received: from [xxx.xxx.xxx.xxx]
    (cpe-xxx-xxx-xxx-xxx-.rr.com [xxx.xxx.xxx.xxx])
    by st11p00mm-asmtp004.mac.com
    (Oracle Communications Messaging Server 7u4-23.01(7.0.4.23.0) 64bit (built Aug
    10 2011)) with ESMTPSA id <[email protected]> for
    [email protected] (ORCPT [email protected]); Thu,
    10 Jan 2013 19:40:24 +0000 (GMT)
    X-Proofpoint-Virus-Version: vendor=fsecure
    engine=2.50.10432:5.9.8327,1.0.431,0.0.0000
    definitions=2013-01-10_09:2013-01-10,2013-01-10,1970-01-01 signatures=0
    X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0
    ipscore=0 suspectscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam
    adjust=0 reason=mlx scancount=1 engine=6.0.2-1203120001
    definitions=main-1301100166
    References: <[email protected]>
    <[email protected]>
    In-reply-to: <[email protected]>
    MIME-version: 1.0 (Apple Message framework v1085)
    Message-id: <[email protected]>
    Content-type: multipart/mixed; boundary=Apple-Mail-20--564984355
    From: XXX <[email protected]>
    Date: Thu, 10 Jan 2013 11:40:21 -0800
    To: YYY <[email protected]>
    X-Mailer: Apple Mail (2.1085)
    Subject: [Not Virus Scanned] Re: ....
    ---- end of attachment ----

    We're all just users here. Neither Apple nor anyone from the 'iCloud operations facility' monitors these posts.
    Nobody here has any inside knowledge of under what circumstances any emails are 'edited' (if in fact they are) by any email systems between sender and recipient.
    In 12 years of using Apple's email systems I have never seen a single email subject changed. However prepending text is not 'corruption'. Corruption means the data is unreadable/inaccessible. Adding a few extra characters does not make the subject unreadable.
    All responsible email providers scan email for viruses. From Google searches it appears that such a message is added by some virus scanners to the subject only when an email attachment cannot be read (such as a password protected file, or a deeply nested zip file) and it serves as a warning to the recipient to exercise caution before opening the email. How many users routinely check SMTP headers before opening potentially damaging emails?

  • How do I virus scan my iMac with OS X

    How do I virus scan my iMac with OS X?

    Mac users often ask whether they should install "anti-virus" software. The answer usually given on ASC is "no." The answer is right, but it may give the wrong impression that there is no threat from what are loosely called "viruses." There  is a threat, and you need to educate yourself about it.
    1. This is a comment on what you should—and should not—do to protect yourself from malicious software ("malware") that circulates on the Internet and gets onto a computer as an unintended consequence of the user's actions. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the computer, or who has been able to log in to it remotely. That threat is in a different category, and there's no easy way to defend against it.
    The comment is long because the issue is complex. The key points are in sections 5, 6, and 10.
    OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.
    2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user. Internally Apple calls it "XProtect."
    The malware recognition database used by XProtect is automatically updated; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
    The following caveats apply to XProtect:
    ☞ It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.
    ☞ It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
    As new versions of OS X are released, it's not clear whether Apple will indefinitely continue to maintain the XProtect database of older versions such as 10.6. The security of obsolete system versions may eventually be degraded. Security updates to the code of obsolete systems will stop being released at some point, and that may leave them open to other kinds of attack besides malware.
    3. Starting with OS X 10.7.5, there has been a second layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't necessarily been tested by Apple, but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. That may not mean much if the developer lives in a country with a weak legal system (see below.)
    Gatekeeper doesn't depend on a database of known malware. It has, however, the same limitations as XProtect, and in addition the following:
    ☞ It can easily be disabled or overridden by the user.
    ☞ A malware attacker could get control of a code-signing certificate under false pretenses, or could simply ignore the consequences of distributing codesigned malware.
    ☞ An App Store developer could find a way to bypass Apple's oversight, or the oversight could fail due to human error.
    Apple has so far failed to revoke the codesigning certificates of some known abusers, thereby diluting the value of Gatekeeper and the Developer ID program. These failures don't involve App Store products, however.
    For the reasons given, App Store products, and—to a lesser extent—other applications recognized by Gatekeeper as signed, are safer than others, but they can't be considered absolutely safe. "Sandboxed" applications may prompt for access to private data, such as your contacts, or for access to the network. Think before granting that access. Sandbox security is based on user input. Never click through any request for authorization without thinking.
    4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is effective against known threats, but not against unknown ones. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
    5. The built-in security features of OS X reduce the risk of malware attack, but they are not, and never will be, complete protection. Malware is a problem of human behavior, and a technological fix is not going to solve it. Trusting software to protect you will only make you more vulnerable.
    The best defense is always going to be your own intelligence. With the possible exception of Java exploits, all known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "Trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and the scam artists. If you're smarter than they think you are, you'll win. That means, in practice, that you always stay within a safe harbor of computing practices. How do you know when you're leaving the safe harbor? Below are some warning signs of danger.
    Software from an untrustworthy source
    ☞ Software of any kind is distributed via BitTorrent, or Usenet, or on a website that also distributes pirated music or movies.
    ☞ Software with a corporate brand, such as Adobe Flash Player, doesn't come directly from the developer’s website. Do not trust an alert from any website to update Flash, or your browser, or any other software.
    ☞ Rogue websites such as Softonic and CNET Download distribute free applications that have been packaged in a superfluous "installer."
    ☞ The software is advertised by means of spam or intrusive web ads. Any ad, on any site, that includes a direct link to a download should be ignored.
    Software that is plainly illegal or does something illegal
    ☞ High-priced commercial software such as Photoshop is "cracked" or "free."
    ☞ An application helps you to infringe copyright, for instance by circumventing the copy protection on commercial software, or saving streamed media for reuse without permission.
    Conditional or unsolicited offers from strangers
    ☞ A telephone caller or a web page tells you that you have a “virus” and offers to help you remove it. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
    ☞ A web site offers free content such as video or music, but to use it you must install a “codec,” “plug-in,” "player," "downloader," "extractor," or “certificate” that comes from that same site, or an unknown one.
    ☞ You win a prize in a contest you never entered.
    ☞ Someone on a message board such as this one is eager to help you, but only if you download an application of his choosing.
    ☞ A "FREE WI-FI !!!" network advertises itself in a public place such as an airport, but is not provided by the management.
    ☞ Anything online that you would expect to pay for is "free."
    Unexpected events
    ☞ A file is downloaded automatically when you visit a web page, with no other action on your part. Delete any such file without opening it.
    ☞ You open what you think is a document and get an alert that it's "an application downloaded from the Internet." Click Cancel and delete the file. Even if you don't get the alert, you should still delete any file that isn't what you expected it to be.
    ☞ An application does something you don't expect, such as asking for permission to access your contacts, your location, or the Internet for no obvious reason.
    ☞ Software is attached to email that you didn't request, even if it comes (or seems to come) from someone you trust.
    I don't say that leaving the safe harbor just once will necessarily result in disaster, but making a habit of it will weaken your defenses against malware attack. Any of the above scenarios should, at the very least, make you uncomfortable.
    6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.
    Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
    Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it—not JavaScript—in your browsers.
    Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a lock icon in the address bar with the abbreviation "https" when visiting a secure site.
    Stay within the safe harbor, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself.
    7. Never install any commercial "anti-virus" (AV) or "Internet security" products for the Mac, as they are all worse than useless. If you need to be able to detect Windows malware in your files, use one of the free security apps in the Mac App Store—nothing else.
    Why shouldn't you use commercial AV products?
    ☞ To recognize malware, the software depends on a database of known threats, which is always at least a day out of date. This technique is a proven failure, as a major AV software vendor has admitted. Most attacks are "zero-day"—that is, previously unknown. Recognition-based AV does not defend against such attacks, and the enterprise IT industry is coming to the realization that traditional AV software is worthless.
    ☞ Its design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere. In order to meet that nonexistent threat, commercial AV software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
    ☞ By modifying the operating system, the software may also create weaknesses that could be exploited by malware attackers.
    ☞ Most importantly, a false sense of security is dangerous.
    8. An AV product from the App Store, such as "ClamXav," has the same drawback as the commercial suites of being always out of date, but it does not inject low-level code into the operating system. That doesn't mean it's entirely harmless. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.
    An AV app is not needed, and cannot be relied upon, for protection against OS X malware. It's useful, if at all, only for detecting Windows malware, and even for that use it's not really effective, because new Windows malware is emerging much faster than OS X malware.
    Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else. A malicious attachment in email is usually easy to recognize by the name alone. An actual example:
    London Terror Moovie.avi [124 spaces] Checked By Norton Antivirus.exe
    You don't need software to tell you that's a Windows trojan. Software may be able to tell you which trojan it is, but who cares? In practice, there's no reason to use recognition software unless an organizational policy requires it. Windows malware is so widespread that you should assume it's in everyemail attachment until proven otherwise. Nevertheless, ClamXav or a similar product from the App Store may serve a purpose if it satisfies an ill-informed network administrator who says you must run some kind of AV application. It's free and it won't handicap the system.
    The ClamXav developer won't try to "upsell" you to a paid version of the product. Other developers may do that. Don't be upsold. For one thing, you should not pay to protect Windows users from the consequences of their choice of computing platform. For another, a paid upgrade from a free app will probably have all the disadvantages mentioned in section 7.
    9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.
    10. As a Mac user, you don't have to live in fear that your computer may be infected every time you install software, read email, or visit a web page. But neither can you assume that you will always be safe from exploitation, no matter what you do. Navigating the Internet is like walking the streets of a big city. It's as safe or as dangerous as you choose to make it. The greatest harm done by security software is precisely its selling point: it makes people feel safe. They may then feel safe enough to take risks from which the software doesn't protect them. Nothing can lessen the need for safe computing practices.

  • Is there a virus scan software that interacts with iMS 5

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  • What is the preferred virus scan program for iphone? I believe that I have a virus. My phone will come on by itself and it appears to be recording audio. I have read about spyware/surveilance viruses that will record audio and take photos.

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  • Which is better and newer, virus scan 6 or pc cillin 2000?

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