Being in Security History means that your machine was successfully protected against a possible attack by that entity, amongst other things. So you have nothing really to worry about.
You could, if you wish, try some extra tools such as Stinger and maybe Malwarebytes Free, see the last link in my signature below.
Thanks for your replies.
I'm glad it's nothing to worry about, but I don't get why every minute it's on the security history. Like, every minute for hours, it will fill pages of the security history, and then nothing for a few hours, and it starts telling me again. Will it go away eventually?
I also had firewall issues in the past, where it would turn itself off. Those are resolved as of now - but could shutting the computer down mess the firewall up somehow, and if the firewall were to be down, could this be an issue for the said virus?
I don't why either but as a precaution you might want to run some extra tools. try Stinger and then Malwarebytes Free both linked in the last link in my signature below.
This is a definite instance of multiple malware infection. Something is dropping that Trojan repeatedly and McAfee should be detecting the cause of infection. Possibly it's coming from an infected website, but it may be P2P or even a rootkit. I would advise a full scan with McAfee and one other scanner as a precaution.
See the Technical Information section of
PWS:Win32/Zbot.DX is a password stealing trojan. Win32/Zbot also contains backdoor functionality that allows unauthorized access and control of an affected machine.
I did a full scan with McAfee the day after this problem started happening, and it found no problems whatsoever.
The security history now seemingly goes through longer spans where it doesn't appear at all, but it still does appear minutely for hours at a time.
I am going to look into Stinger/Malwarebytes as Ex_Brit suggested, but is there anything else you would suggest I do?
I see the virus could be potentially harmful, even though I don't notice it directly, so I really don't know how concerned I should be?