Trojan horse

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Last night my computer was infected with win32:BHO-AHO (PUP). It destroyed all of my files on Microsoft Word in my document folder

AND my Microsoft Word PROGRAM!!!!!

Why oh why didn't my AVAST paid up grade secure my computer.
Vivienne

[Pondus]

win32:BHO-AHO (PUP

PUP = not a virus / Possible Unwanted Program
PUP scan is default off in quick/full scan.... and default on in boot scan

from the name win32:BHO. this seems to be some toolbar. 
Browser Helper Object.  http://en.wikipedia.org/wiki/Browser_Helper_Object

so if you have a infection i doubt it was this..... what program detected this if not avast?
your topic title say trojan horse....where is the [trj] detection ?

[Pondus]

AND my Microsoft Word PROGRAM!!!!!

http://forum.avast.com/index.php?topic=118101.0
http://forum.avast.com/index.php?topic=118311.0
http://forum.avast.com/index.php?topic=118389.0

[Pondus]

if you want a malware check, follow this guide and attach the requested logs.....not copy and paste

http://forum.avast.com/index.php?topic=53253.0

AdwCleaner
Malwarebytes
OTL
aswMBR

when done a removal expert will be notified and help you

[REDACTED]

When I did the scan of my files through my Avast program the win32:BHO-AHO(PUP) was listed as a Trojan virus.
This morning while searching through  my AVast acct all 17 files were listed the dates, and the viruses that caused me to lose files and to lose my Microsoft Word program.

I did look at the drop down menu under maintenance and clicked onto the virus chest, this is where AVAST has viruses listed.

Also, this morning when I searched on my iPad win.32:BHO-AHO77, a google search brought pages and pages on the Trojan horse.  Your replies have me very confused.

[polonus]

Keep away from downloading from Softonic that comes bundled with crap toolbars and BHO adware. Produce the logs asked and let a qualified malware remover here have a look at them,

polonus

[Pondus]

When I did the scan of my files through my Avast program the win32:BHO-AHO(PUP) was listed as a Trojan virus.

can you attach a screenshot?

This morning while searching through  my AVast acct all 17 files were listed the dates, and the viruses that caused me to lose files and to lose my Microsoft Word program.

did you check the link i posted in my reply #2

right click the word files in chest, and scan again.....if not detected you can restore the files