Posted to alt.comp.anti-virus newsgroup somebody said the file in question "killed his harddrive". He posted the file to the group and I tested it with Nod32 v.2.5.7. It does not react to it but Kaspersky tells it is Trojan.Win32.KillFiles.hi. And testing it with www.jottiorg's several engines some others recognize it too, but not Nod32. i don't know how "in the wild" this trojan is but it seems to exist somewhere if this guy got infected.