The visbas_skull_banners.zip file you have requested: Banners And Badges / Visba's Skull Banners - 202.09kb is not available. Perhaps try browsing all files for the game Dawn of War and upload any files you want to share or are missing. This is the only information we could locate:
This is a pack of exclusively banners of a single skull with different effects applied to it and other things drawn in or behind it. There are 9 banners, one of which is the original skull, shrunken to banner size.