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AVG false positve detection?

by MarkFlax Forum moderator / September 8, 2007 7:48 PM PDT

Hi all, your advice would be appreciated yet again. I only ever seem to visit when I have a question to be answered on my own system, Happy

My AVG Free v7.5.485 suddenly detected a virus in my HiJackThis.exe application yesterday. Virus definitions updated just before the scan, but I have had this version of HJT for some weeks now and AVG hasn't spotted it before.

AVG has quarantined Hijack This.exe and it says this about the virus;

Hijack This.exe in C\HJT\
Virus identified Worm/Generic.DHT
File size 387KB
Healable? No
Source: Backup copy
Status: Infected.

I've deleted the (so called) virus from the quarantine vault as I am not going to take a chance and I can always download HJT again.

HJT.exe version HijackThis v2.0.2, so it's the new one.

I suspect this is a false positive because of the way HJT scans and works. Would you agree with that?

Many thanks,

Mark

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Update your vdb
by jahn / September 8, 2007 11:32 PM PDT
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Yep, I should have checked there first!
by MarkFlax Forum moderator / September 9, 2007 1:44 AM PDT
In reply to: Update your vdb

Thanks for that jahn, I could have gone there first and double checked before bothering anyone here.

I've updated the definitions now so all should be ok.

Much appreciated.

Mark

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NP ;-)
by jahn / September 9, 2007 4:58 AM PDT

What's strange is that other AVs are/were detecting it also (BD, AntiVir, Dr. Web, NOD32, ++). I'm guessing heuristics.

Also, since some malware purposely hide from HijackThis.exe, I would recommend re-naming it to something like "Analyzer.exe".

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Renaming HJT
by MarkFlax Forum moderator / September 9, 2007 5:02 AM PDT
In reply to: NP ;-)

Yes I've heard that before and forgot to rename it.

I haven't re-downloaded it yet, but will remember when I do.

Mark

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