timestamp are not altered, just the same as I’d uploaded it.
put it like this, i uploaded them on 12/8, the problem arised on 14/8, the timestamp of the files are all still 12/8.
Can’t really confirm the incident now, because I had reinstalled the whole wordpress with a clean 2.8.4, so I can’t really diff those files anymore.
If it looks benign then I’ll report that to my hosting company.