Avast version 5 did not detect a Trojan.Zlob

[doycarlo]

My Avast version 5 did not detect a Trojan.Zlob infected file from my portable drive when I scanned it but Symantec did and removed it. After that, I did a full system scan of all my hard disks including my portable drive using Avast 5 and it found none. Is it possible that Trojan.Zlob is still in my system and my Avast 5 cannot detect it anymore?

The infected file was found in F:\\System Restore Information\ folder of my portable drive. Today I checked the full path but I can't find it anymore. The folder show as a hidden file from another computer (from where I scanned using Symantec) but in my netbook I can't find it.

Thanks for the help.

[Pondus]

Try these

DrWeb CureIt http://www.freedrweb.com/cureit/?lng=en
How Do I Use Dr.Web CureIt!? http://www.freedrweb.com/cureit/how_it_works/
Norman Malware Cleaner http://www.norman.com/support/support_tools/58732/en

save to desktop and run from there. they are not installed.when they have done the jobb, just drag and drop to the resycle bin

[Cahya Legawa]

doycarlo,

Welcome to the forum, would you like to submit the infected file sample to avast, first make it into .zip (or else) compressed file and send via email to virus@avast.com

[mkis]

Are you sure you were up to date?

19.1.2010 - 100119-0
Win32:Zlob-CYU [Trj], Win32:Zlob-CYV [Trj]

24.1.2010 - 100124-1
Win32:Zlob-CYW [Trj], Win32:Zlob-CYX [Trj], Win32:Zlob-CYY [Trj], Win32:Zlob-CYZ [Trj]


And Cahya is right, you need to upload to virustotal and would be good if you could send file to avast so that they are notified. You may have a new mutant of what is relatively well-known strain of virus.

Send a sample to virus@avast.com
-   classify file as undetected malware – add  link to this topic in the forum
-   zip the message and password protect – secure password in the email body

[Cahya Legawa]

Hi mkis,

I'm sorry if this is out of topic, but while you mention about zip the file and password protect, I wonder it is "a must" to give a password to the file?

Thanks.
Cahya.

[Pondus]

I wonder it is "a must" to give a password to the file?

If not password protected the zip.file will be scanned by any antivirus program on outgoing or incoming mail server and removed if detected

[Cahya Legawa]

I wonder it is "a must" to give a password to the file?

If not password protected the zip.file will be scanned by any antivirus program on outgoing or incoming mail server and removed if detected

Even on SSL?

[Pondus]

do you have an E-mail account with SSL like yahoo / Gmail....
you can test sending eicar test file.....zipped and password protected and not password protected

http://www.h-online.com/security/services/Emails-with-virus-dummies-823268.html
http://www.h-online.com/security/services/Emailcheck-747686.html
http://www.gfi.com/emailsecuritytest/

[mkis]

I not sure myself Cahya

I'm actual repeating text from someone else's guide


btw my context menu (right-click on file) gives me a nice easy way to make a zip folder for send to avast
(see screenshot)