question about computer virus

Discussion in 'Windows OS and Software' started by kenny1999, Oct 1, 2016.

Thread Status:
Not open for further replies.
  1. kenny1999

    kenny1999 Notebook Evangelist

    Reputations:
    26
    Messages:
    359
    Likes Received:
    28
    Trophy Points:
    41
    The first question:

    We all know that EXE files are very risky if it's not from trusted source.

    However, if I just download it, while I do not click to execute it. Is there any risk?


    Another question:

    If a file is MP3 or JPG or other formats like TXT or Video formats.

    Does it mean those files should be totally safe? Could a EXE or virus file of other formats "pretend" to be a common file like MP3 or JPG and once you play it, then my computer will contract virus?

    Could a PDF file contain virus?

    Thank you for all advice!
     
  2. Tinderbox (UK)

    Tinderbox (UK) BAKED BEAN KING

    Reputations:
    4,701
    Messages:
    8,504
    Likes Received:
    3,789
    Trophy Points:
    431
    Upload the file to Virus Total website to have over 40 anti-virus programs scan it.

    Be aware that when a virus name has .gen on the end, the anti-virus program could have give you a false positive.

    https://www.virustotal.com/

    John.
     
  3. TreeTops Ranch

    TreeTops Ranch Notebook Deity

    Reputations:
    301
    Messages:
    858
    Likes Received:
    96
    Trophy Points:
    41
    In addition to Tinderbox's reply, .exe virus files are only dangerous when executed. Just downloading should not pose a risk. Do what Tinderbox recommends for those files. HOWEVER. some javascript code can run a file automatically when you visit a rogue website and infect your computer. And some sites hide virus files in a image so when you click on that image you get the virus. But that is another issue.
     
    kenny1999 likes this.
  4. kenny1999

    kenny1999 Notebook Evangelist

    Reputations:
    26
    Messages:
    359
    Likes Received:
    28
    Trophy Points:
    41

    For downloaded files ending with *.mp3 *.mp4, *.jpg, *.mov etc, could they possess any virus on execution?

    I know about Virustotal but I just don't want to do to each *jpg file. It will be a lot of work
     
  5. TreeTops Ranch

    TreeTops Ranch Notebook Deity

    Reputations:
    301
    Messages:
    858
    Likes Received:
    96
    Trophy Points:
    41
    I guess with today's hackers, anything is possible. Just get a anti-virus program and be done with it. Life's too short to worry about every little thing.
     
  6. Tinderbox (UK)

    Tinderbox (UK) BAKED BEAN KING

    Reputations:
    4,701
    Messages:
    8,504
    Likes Received:
    3,789
    Trophy Points:
    431
    I run these on demand scanners in addition to my constantly running Avast anti-virus every couple of weeks, or if i have been to an especially dirty site :oops:

    1st run JRT (Junkware removal tool by Malwarebytes) it may close some of your apps this is normal

    2nd run Adwcleaner as it wants to reboot if it finds something, I would do a reboot even if it find nothing, to restart any apps JRT has terminated.

    I have been using both these apps for months and Avast has not objected to them.

    Be aware that even if you use every anti-virus and scanner available you might not find them all, nothing cleans your computer like a hdd/ssd full format (i do quick it`s up to you) and a clean install of Windows.

    https://www.malwarebytes.com/junkwareremovaltool/

    https://toolslib.net/downloads/viewdownload/1-adwcleaner/

    John.
     
    kenny1999 likes this.
  7. StormJumper

    StormJumper Notebook Virtuoso

    Reputations:
    542
    Messages:
    3,339
    Likes Received:
    425
    Trophy Points:
    151
    Put this was if you don't know what the *.exe file came from or what it is associated with then expect problems. Never click on .exe or .pdf or .doc files if you have no idea where they came from or what they are associated with. That is what malware/virus are expecting the users not asking ok what is this file and verify what is it associated with. If you can't answer that then there is a problem. A little *STOP* *Think* would go along way from the happy go click buttons to less infections.
     
    kenny1999 and Jarhead like this.
  8. bennni

    bennni Notebook Evangelist

    Reputations:
    91
    Messages:
    450
    Likes Received:
    277
    Trophy Points:
    76
    You asked a million questions about VM's recently - why not just use the helpful advice you were given and do this kinda stuff in a VM? It's not perfect but it's a better way of downloading such files than doing it on an OS that has your actual data.

    This isn't exactly what you asked but I tend to be more practically concerned - and that's my practical advice.
     
    Last edited: Oct 2, 2016
    Jarhead likes this.
  9. kenny1999

    kenny1999 Notebook Evangelist

    Reputations:
    26
    Messages:
    359
    Likes Received:
    28
    Trophy Points:
    41

    Yes. Life is very short. However, sometimes something has to be worried.
     
  10. StormJumper

    StormJumper Notebook Virtuoso

    Reputations:
    542
    Messages:
    3,339
    Likes Received:
    425
    Trophy Points:
    151
    A further protection create "Limited User" account and use that for your everyday usage and password protect the Admin/Owner account and should a .exe or similiar want to run you will know to verify if this is what your doing not what it wants to do. This is something alot of users forgets on day ONE(Your the Admin/Owner and any installs will install whether you want it to or not)when they start using the computer make "Limited User" account and use that and password protect Admin/Owner account. If people just stop and do this they will eliminate the majority of infections and stop those botnets/zombies but until people do this the infections will continue.
     
    Last edited: Oct 4, 2016
    kenny1999 likes this.
Loading...
Thread Status:
Not open for further replies.

Share This Page