How to check if your Anti Virus is working [ Antivirus ]

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Most of the time we just install the  Anti Virus or the anti Malware programs and relax that they are working fine and one fine morning you see things not working and finally you realize that its your anti virus program which was not working at all. Here is a small test which you can do in case you are not sure if your anti virus program is working fine or not.

#1 Open Notepad and paste this string into it ( without double quotes )

“X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H* ”

#2 Save it and as soon as you do your antivirus real time protection should be able to detect it. In case you have disabled the real time protection run a scan for this file.

This file actually is a dummy virus which simulates like a virus which is provided by EICAR for distribution as the “EICAR Standard Anti-Virus Test File”, The file is a legitimate DOS program, and produces sensible results when run (it prints the message “EICAR-STANDARD-ANTIVIRUS-TEST-FILE!”). You can read more on this at EICAR Antivirus Test File

Antivirus test String

Antivirus test String

For those of you who say your auto scan doesn’t detect it… I have tried on a few anti-virus… If your anti-virus doesn’t scan text files under real time then it will not detect it until you do a system scan. To make it detect it real-time you need to tell your real-time scan to scan all files, not just “smart” file scan. You can test it by saving as an exe or other format that is on the auto detect file list.



A Professional Tech blogger, Editor and Writer who talks about solving day to day problems of people who use computer. His expertise are in Windows 7, Microsoft Office, Software, Mobile Apps and Video Posts. You can find Ashish on , and .

61 Comments to How to check if your Anti Virus is working [ Antivirus ]

  1. Wow… neat trick! My antivirus software (NOD32 v.3.0.669.0 with virus database up-to-date) has indeed detected it and quarantined it! Cool! Thanks for the tip, Ashish. \m/

  2. Ramon Contreras

    Kaspersky Internet Security 2009 caught it and could quarantine it, but i made it delete it. Thanks :D

  3. I saved it on my desktop. PC Tools internet security did not catch it until I manually ran a scan pointing it to user profile/desktop location.

  4. Nice tool for checking the anti-virus. Thank you. I feel better now, because I use the Microsoft Security Essentials and it detected it, suspended it and gave me the choice to clean computer and it quickly deleted it.

  5. my bit defender anti virus 2010 not even warn me about this virus ;( ;(

    instead it deleted it instantly :D :D

  6. Norton internet security 2010 works perfect. It says Auto-protect has blocked security risk EICAR Test String. Risk status: High

    Best thing about this new version is its very light. This is a kick ass stuff for all those people who experienced slogging old versions.

  7. Spyware Doctor detect it.
    Malwarebytes’ Anti-Malware detect it.
    Bit Defender total security 2010 instantly delete it.

    :D

  8. Wow guys that was great,thanx for the tip and surely you people are doing a wonderful service to all internet users..

  9. Thanks for the virus test. Avast 5.0 detected it when scanned. I also entered the script into an email and sent it to myself. Avast stopped it dead in it’s tracks and quarantined it. Nice to know Avast is working. Thanks for a neat service.

  10. My Avast Anti-virus blocked it immediately and I love how it talks to you and tells you that malware has been detected.

  11. thank you i have posted this on a few web sites i use as it can be verry important to have a full functional antivirus works with avira too but you do have to change the settings to scann all files not just smart scann in real time protection didnt know that avira missied out some typs of files to guess there another thankyou for imporving my scuirty :)

  12. Don’t be fool people. This supposed to work since 1999 for any antivirus back then. Currently technologies are much more complicated so this test really checks NOTHING!

  13. WOW buddy… u just saved my life. I thought my Avira was dead after accidentally modifying some of it’s key files with a (trashy but non-virus) program that I made. But it was not. I will tell my friends about this.

  14. hey my avast 5.0.594.0
    delete this virus quickly
    my avast anti virus
    also detect the txt file
    gud i love u avast

  15. that awesome test and it will make us believe that our system is secure my norton antivirus found it as soon as i have pasted and saved

  16. My Stop Sign did not pick it up right away but did fine it when it performed it’s auto scan. Nice test thanks.

  17. JAYANT RAHANE

    GREAT HELP…. I LIKE IT WHEN I SAVE NOTEPAD MY

    NOD32 ANTIVIRUS 4 DETECT IT & MAKE IT QUARANTINE

    THANKS A LOT FOR SHARING SUCH ARTICAL WITH US…

    KEEP WORKING…………..

  18. My ESET NOD smart security detected it instantly and didn’t allowed it to even save it to desktop and deleted it but when i tested it with avst internet security it neither detected automatically nor when ran a manual scan.
    But according to CNET’s review avast internet security is number one in security suites where as eset smart security is 4th.
    Strange!!!

  19. Thanks. Just realised that my current anti virus has expired. It didn’t even give me a notifications Will have to go back to installing QuickHeal AntiVirus again. At least I used to get a proper message from them when my antivirus package was close to expiry.

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