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My computer became a spambot


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#1 Sanias

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Posted 23 April 2013 - 03:07 PM

I get ~50 mails every day from my mail host about "message couldnt be delivered to recipient". I do not send any emails. I contatced the mail host, and they confirmed that the emails are being sent from my account, and I probably have computer infected with spambot. Scan with Malwarebytes Anti-Malware, and Windows Essentials Security didnt show any threats though. What do I do?



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#2 cmptrgy

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Posted 23 April 2013 - 03:43 PM

I suspect the first thing to do is change your password and make it a strong password and see if it makes a difference

 

You say you do not send any emails

--- Does that mean you really do not send any emails at all or you are not sending out the ~50 emails a day that you mention?

--- Do you have an address book and are some of the email addresses included in the list of emails that are being sent out

--- In other words, there might be a total of maybe 55 messages which in this case there are 5 email addresses taken from your address book!

--- The reason I'm asking is because I'm trying to figure out whether or not your address book has been hijacked and/or the spambot is just using your account for their own purposes

 

I think it would be good for us to know who is your mail host?

--- Did your mail host make any recommendations on how you can thwart the spambot in addition to ensuring whether or not your computer  is infected?

--- Do you have filtering capabilities so that you can manage which emails are allowed to even come in?



#3 Sanias

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Posted 24 April 2013 - 08:58 AM

I meant that I am not sending any of the emails I get as "not sent". I don't have an adress book, all emails are sent to strange abroad mail accounts (most of them French, I live in Poland), none of which I know. My email host is polish website "onet", they did not give any advice, aside of "turn auto logging off and delete e-mail password from your browser" - (I didnt have that, I always log on manually), and warned that I should take care of the problem, or my account can be blocked.

 

I changed my password to a stronger one, as you suggested, we will see if that helps. I do not have filtering capabilities.



#4 boopme

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Posted 24 April 2013 - 09:53 AM

Your machine could be a Zombie, (working for another machine)

I think we should get a deeper look. Please follow this Preparation Guide and post in a new topic.

Let me know if all went well.


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