Hi, welcome to the forums.
In order to help fully we need more information....
- What avast! version and VPS file (virus database) number, e.g. 0436-4 (see about avast!)
- What was the virus name, what was the filename, where was it found
example (C:\windows\system32\infected-filename.xxx)?
- What actions have you taken to try and resolve the problem?
The filename 'zanuhool.dll.tmp' is suspicious as it has a double file extension .dll.tmp, this is commonly used to trick and confuse peopl into thinking it is a harmless temp file.
A google search for 'zangoclient' without the quotes returns some hits that indicate it is Adware - this is one of them -
http://securityresponse.symantec.com/avcenter/venc/data/adware.zangosearch.htmlIf you haven't already got this software, download, install, update and run it.
1.
Ad-Aware2.
Spybot Search and Destroy3.
SpywareblasterAnother useful tool is HiJackThis -
Download HijackThis.zip -
HiJackThis TutorialFor an on-line scan of your Hijackthis log file try here
http://hijackthis.de/index.phpIgnore any 023 reference to avast processes, this is a hiccup in the HJT 1.99.1 (especially missing file entry for avast), if you need any help with any of the analysis let us know.