This is an archive file within another archive file, and looks like it is within yet another archive file. First A0367550.msi, then DATAL.cab, then EIshowspyabout.exe (zro google info on this file) and possibly another UXP archive after that and it looks like that is the protected one.
So I would say avast's detection is correct:
- Infected Restore Points - There really is little benefit in chasing a detection in the system volume information folder. It is only there because it had previously been deleted or moved from the system folders and this is a back-up created by system restore.
- Worst case scenario it isn't infected and you delete it, you can't use that restore point in the future, not much of a loss and the older the restore point is the less of an issue it is.
- So if there is any suspicion about a restore point then it is best removed from the system volume information folder or it could bite you in the rear at some point in the future when you use system restore if it included that restore point.
I would suggest manually clearing your restore points (disable, reboot, enable):
Windows XP System Restore General Information
System Restore Guide