I have answered (rather asked a number of questions) in your other post http://forum.avast.com/index.php?topic=24626.msg202421#msg202421, created 2 minutes before this one.

Can you answer them here as you original post in someone else’s topic isn’t really related to it.

Well you can start by saying what is the infected file name, where was it found e.g. (C:\windows\system32\infected-file-name.xxx) ? What avast! version and VPS file (virus database) number, e.g. 0645-4 (see about avast!) ? You say nothing shows up as infected in the chest - How are you accessing the chest ?

Welcome to the forums.

For the future, please don’t make multiple posts about the same question, it only creates confusion and duplication of effort for those helping. Posting in someone else’s topic should only be done when your problem exactly matches that topic and then it may just be best to monitor the topic only posting if you need additional help.

@ Testy,
The same is true of this case, your post seems totally unrelated to this a different malware detection. Don’t sit on it check it out and if need be create your own topic answering the first question above and why you might think it is an FP.