Virus Scan from Servlet

Hiii,
First of all I cant decide where to post this message... this can be wrong place but I am sure that you can give some valuable ideas...
I have a servlet that donwloads some files from some users, and puts them to appropriate place... but dosent look at the files are corrupted by virus, trojans or etc... so that it brings a security issue that I have to handle... but I dont know where to begin... My server runs RedHat EE ..
In my opinnion I should use command line scanning ... scanner can scan file and may RETURN some information about the file .. finally do some necessary job(delete, copy or move file ... etc..)...
Some anti-virus softares has command line scanners.. but it seems that they do not return a meaningfull message .. ...
I think I am clear about the problem...
Is there anybody who has done such kind of a job before.. ? ..

Providing you don't need to report back to the user that their files are invalid how about uploading the files to a quarantined area on your server and setting a cron job to scan this files before moving them to correct directory?
Kaspersky do a linux virus scanner you might try - http://www.kaspersky.com/lin_fileserver
No idea how flexible the command line interface is though.

Similar Messages

Computer Running what sounds like virus scan from 12-3, but security virus runs only in PM

My computer was running what seemed like a virus scan this afternoon from 12-3, made it difficult to do work, I have the security system scheduled to run it at night. How do I find out what kind of scan this was so it doesn't happen again and slow down my work in the PM? Thanks

What specific operating system are you running? Windows Vista and Windows 7 if you have one of these OSs run many tasks routinely that can cause disk activity and CPU usage.
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The first to bring me 1Gbps Fiber for $30/m wins!

Uninstalling Mcafee virus scan from Lion

I'm trying to install a Norton antivirus product, however the installer tells me that I cannot install it on my hard drive because I already have "incompatible antivirus software" installed on it, and it lists McAfee VirusScan. I had McAfee on it previously, however I have run the Unistaller provided by Mcaffee. I thought this had removed the program, however there are still clearly remnants of it somewhere on the drive. Does anyone have experience with this and is willing to help?

Removing all traces of anti-virus software is often difficult. In your case, you need to go to the McAfee site, not the Norton site, to search for a manual uninstall process.
Try: https://kc.mcafee.com/corporate/index?page=content&id=KB54975
However, I agree with others in not recommending Norton as a replacement. If you feel that you need an anti-virus software to detect you from no known Mac viruses in the wild, try ClamXav. At least it's free.

Itunes stops McAfee Virus Scan

I have isolated a file in Itunes and it is stopping my virus scan from proceeding and locks up my brower (actually locks up my entire system). I am using McAfee Virus Scan, have updated it as required.
The file that seems to be stopping the process is:
c:/program files\itunes.resources\fr.lproj\Placards.nib\objects.xib
If I let the virus scan run, it functions until it gets to this file then everything just comes to a standstill.
I have even run the online McAfee Virus Scan and it too gets to this file and stalls and the system is locked up.
Anyone have any idea?
Thanks for your help.
Jeff

Try posting in the iTunes Windows Discussions.
This is an issue with McAfee and not iTunes.
MJ

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.
If you can solve this I'll be so impressed because its driving me crazy. I've checked all config files and everything is as it should be.

Hi
This thread was interesting as I have many customer sites using virus scanning without any problems together with this proxy.. Some sites are really huge as well.
Can the author of this thread explain how the scanning that now refuse to work is done with the proxyserver... Through an API or as forwarded requests to another scanning proxy (trend micro etc.) or what ? Maybe this is done in some way I am not aware of. Then I am really interested in your problem.
We mostly use it "user->proxy->vscanner->site" where the proxy and the scanner often run at the same host. This in huge installations together with load balancers infront and behind.
/Per-Olov

I can't save a thing, and memory is being stolen? I want to try free "virus scan" app from apple, tho cannot

Can u help me?

I can't save a thing, and memory is being stolen? I want to try free "virus scan" app from apple, tho cannot
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HP OfficeJet 6500 E709a: cannot scan from Windows 8.1; uninstall crashes at step 8 of 10

When I try to scan from Windows 8.1, launched from the HP Solution Center, it fails before giving me a preview, saying:
Scanning error
4,[(2,22,80040001),(3,22,0)]
When I run the HP Print and Scan Doctor and select "Fix Scan", it fails on the first check, saying it failed to find the driver. The text field that gets uploaded to HP includes the string "hpbxpsrender.dll: Not Found".
I tried uninstalling, using uninstall.bat in the "OJ_AIO_6500_E709_EntScruber_140" (HP OfficeJet Enterprise 14.0), which I downloaded from HP.com. It gets to step 8 of 10 ("removing unnecessary components..."); then it hangs and Windows 8.1 says "HP Installer Uninstaller has stopped working" and kills it.
I have tried running uninstaller in regular mode, in regular mode with my anti-virus / firewall (Kaspersky) paused (disabled), and in Safe Mode with Networking. Same result every time.
I have run the Installer without error. I can view the HP OJ status web page in my browser (http://192.168.1.5) from both computers.
I don't remember if scanning has ever worked on this computer. Scanning works on another computer (Windows XP). Both computers are wired (Ethernet) to the same network switch as the HP OJ.

Hi DonaldPayne,
Welcome back to the HP Support Forums! I see you are not able to scan to your HP Officejet 6500 with your computer running the Windows 8.1 Operating system. You have tried to uninstall the software but get an error message. I see you have done ALOT of troubleshooting already, thank you for that, this allows me to see what has failed for you.
I would like you to continue here and complete the steps listed below:
1. Press the Windows key + R on the keyboard to bring up the run menu.
2. Type %programfiles% in the run field and click OK.
3. Delete any HP/Hewlett Packard folders.
4. Press the Windows key + R on the keyboard to bring up the run menu.
5. Type %programfiles(x86)% in the run field, and click OK. This is for 64 bit systems only.
6. Delete any HP/Hewlett Packard folders.
7. Press the Windows key + R on the keyboard to bring up the run menu.
8. Type %appdata% in the run field, and click OK.
9. Delete any HP/Hewlett Packard folders.
10. Press the Windows key + R on the keyboard to bring up the run menu.
11. Type %programdata% in the run field. 
12. Delete any HP/Hewlett Packard folders.
13. Press the Windows key + R on the keyboard to bring up the run menu.
14. Type regedit in the run field.
15. Delete any HP/Hewlett Packard folders or keys that you find. (backup the reg file b4)
16. Run Disk cleanup from Administrative Tools
17. Now run the HP Printer Install Wizard for Windows it was created to help Windows 7, Windows 8, and Windows 8.1 users download and install the latest and most appropriate HP software solution for their HP Printer.
18. If you run into any problems after installing using the PIW, now we can re run the HP Print and Scan Doctor- It was designed by HP to provide users with the troubleshooting and problem solving features needed to resolve many common problems experienced with HP print and scan products connected to Windows-based computers.
I will watch for your reply, please make note of anything that you run into as well as what the PSDR finds.
Thanks,
HevnLgh
I work on behalf of HP
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to the left of the reply button to say “Thanks” for helping!

My itunes account shuts down for no reason. It wont recognize my iphone and there is an issue with network connectivity and itunes. I have already reinstalled itunes and did a syste restore on my computer, firewall checked and virus scan done. Ideas??

My itunes account on windows xp shuts down for no reason. If even try to delete something from my library it shuts down. It wont recognize my iphone and there is an issue with network connectivity and I can't connect to the store. I have already reinstalled itunes and did a system restore on my computer, firewall has been checked, itunes is ok on firewall and virus scan done. Ideas??

Same problem. I can see the itunes store so not a problem with windows firewall. The account is active on my iphone so i know i am not locked out. I can connect the PC to my iphone so i know itunes is working ok. It is just logging into itunes on this pc which doesn't work. Only thing I can think of is that the email address I use for my apple id has been offline for a while and is working again now, I'm wondering whether this has been the case for others who are having this issue?

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.

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

We need to install a virus scan software on the iMS5 server that we already have.
All the research that I did would give us a virus scan software where incoming emails have to flow through before entering the messaging server. However , this is not what we need.
What I am looking for is for the messages to go directly into the messaging server, get scaned (or sent to be scaned) by the virus scanner and then delivered to the user mailbox (in case it is clean of course).
Anyone of you guys knows about such a solution?
Thanks for your assistance.

This can be done easily. You will need a virus scanner that works from the command line on the platform you're using.
You'll integrate this with the MTA using the conversion channel. I do not know the size of your environment, but best practices says not to put the virus scanning on the message store system. (I'm used to doing systems to support 1M users and up.) For example at home I'm put everything on a single machine, you'll have to find the best place for your situation. Experience says that the conversion channel will add about 20% utilization to your system.
Here are some example entries for a conversions file on a unix based system.
in-channel=*; in-type=application; in-subtype=*;
parameter-symbol-0=NAME; parameter-copy-0=*;
dparameter-symbol-0=FILENAME; dparameter-copy-0=*;
message-header-file=2; original-header-file=1;
override-header-file=1; override-option-file=1;
command="<your-script-here>"
in-channel=*; in-type=image; in-subtype=*;
parameter-symbol-0=NAME; parameter-copy-0=*;
dparameter-symbol-0=FILENAME; dparameter-copy-0=*;
message-header-file=2; original-header-file=1;
override-header-file=1; override-option-file=1;
command="<your-script-here>"
in-channel=*; in-type=video; in-subtype=*;
parameter-symbol-0=NAME; parameter-copy-0=*;
dparameter-symbol-0=FILENAME; dparameter-copy-0=*;
message-header-file=2; original-header-file=1;
override-header-file=1; override-option-file=1;
command="<your-script-here>"
in-channel=*; in-type=audio; in-subtype=*;
parameter-symbol-0=NAME; parameter-copy-0=*;
dparameter-symbol-0=FILENAME; dparameter-copy-0=*;
message-header-file=2; original-header-file=1;
override-header-file=1; override-option-file=1;
command="<your-script-here>"
You could check the mail archives for the info-pmdf mailing list for more examples and possibly even an example shell script.

I was told I needed to run a virus scan before being allowed to reinstate my facebook account. What is the best way for me to download a free, but 100% safe virus scan for my iMac?

Is there a virus scan download from Apple.com that I should use to clear my iMac before I download the latest update to Mevericks and get a clear slate to reactivate my facebook account? Thank you.

You may have been the victim of a potential scam or responded to a pop-up trying to sell anti-virus software.
How on earth would Facebook know you have a virus - not least because there are no viruses that can affect OS X.
There are many forms of ‘Malware’ that can affect a computer system, of which ‘a virus’ is but one type, ‘trojans’ another. Using the strict definition of a computer virus, no viruses that can attack OS X have so far been detected 'in the wild', i.e. in anything other than laboratory conditions. The same is not true of other forms of malware, such as Trojans. Whilst it is a fairly safe bet that your Mac will NOT be infected by a virus, it may have other security-related problem, but more likely a technical problem unrelated to any malware threat.
You may find this User Tip on Viruses, Trojan Detection and Removal, as well as general Internet Security and Privacy, useful: The User Tip seeks to offer guidance on the main security threats and how to avoid them.
https://discussions.apple.com/docs/DOC-2435

Does my macbook air have a built in virus scan? how can I access and use it? also any recommendations of what software if this is not avail ?

does my macbook air have a built in virus scan? how can I access and use it? also any recommendations of what software if this is not avail ?

Contrary to what Geeks on Hugs is telling you, Mac OS X does indeed have a basic malware scanner. It is not a feature that is directly accessible to the user, and works a bit differently than every other malware scanner out there. Gatekeeper, which has been mentioned here, is entirely separate, and provides a different method for helping to protect you against malware.
The anti-malware scanner in Mac OS X is called XProtect. When you download an application (or any other kind of executable code), it is automatically "quarantined," so that when you open it you're asked if you really want to do that. I'm sure you're very familiar with this aspect of Mac OS X if you have ever downloaded any apps from outside the App Store. What you don't know, though, is that each time you try to open a new app, that app is checked by XProtect. If it is identified as malware, you will not be allowed to open it, and will be warned that it's malware.
At this time, there is no known malware that can infect a properly up-to-date Mac. All current malware will be blocked by one or more methods.
For more information, see my Mac Malware Guide.
(Fair disclosure: I may receive compensation from links to my sites, TheSafeMac.com and AdwareMedic.com.)

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