Friday, December 4, 2009

Win32: Delf-MZG scare

Yester day morning, when I switched on my computer, there was this flash from Avast - 'Trojan Horse- Win32: Delf-MZG detected'. I put it in the chest as recommended by them, and thought I would do a virus scan. To my horror, there were 75 infected files, and even my D&E drives seemed to have these Trojan files. Yes, I deleted some, moved some to the virus chest.Then, I rang up my computer store,to check whether I should clean up and reinstall windows .They suggested that if I had deleted the files, then, it’s ok and that I need not reinstall windows! Anyway,I was terrified to open my mails or even go to any of my secured sites.
Well,this morning, I wanted to gather  more info about ‘Win32: Delf-MZG’ before going to any of my secured sites . I Googled ,and here's  the explanation from Avast -support :


On Thursday 3.12. 2009 avast! had a bad false positive issue. At around 00:15 AM GMT we released VPS update 091203-0 which started flagging hundreds of innocent files as a 'Win32:Delf-MZG' Trojan (or, in less common cases, as 'Win32:Zbot-MKK'). Among the files affected were high-profile programs produced by Adobe, Realtek, sound card drivers, various media players etc.


On Thursday 3.12. 2009 at 5:50 AM GMT, another VPS update 091203-1 was released, fixing the issue (for both 'Win32:Delf-MZG' and 'Win32:Zbot-MKK'). If you're still using the bad VPS 091203-0 we recommend to invoke a VPS update immediately. To restore false positive files from avast! Virus Chest please follow the instruction in the following article:

Restoring false positive file from Virus Chest

Those who have not used their computers between 12:15 AM GMT and 5:50 AM GMT will most likely not be affected.
We deeply apologize for any inconvenience this has caused.”
BTW,Google Answers was also bursting with questions by perplexed users about this Trojan horse-Win32: Delf-MZG !

 Whew! Now I can go about my normal work! But I was really, really freaked out yesterday seeing a string of Trojan Horse warnings!Surely,you are regularly backing up data on your desktop/laptop, aren’t you? :)

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Marianne Tutor said...

Whenever I have a virus, I call my grandson.

Roads Wilson said...

that's a very helpful solution.. it really worked for me..

Robert White…..
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