Dots like that are not fungus, which always has filaments of some sort. Two possibilities. First, and hopefully, there is lubricant that has vaporized and condensed on the surface of one of the inner elements. The rear part of that lens has six elements in three groups. The last two elements are air spaced, but the inner group in four elements cemented together. There is a possibility that there is delamination on one of the cemented surfaces. If that is the case, it is a real pain to recement four elements and get it anywhere near right. But it looks to be on one of the two elements near the rear, and that should not be a hard fix. OTOH, if the lens looks clear looking through it and those spots are only visible at an oblique angle, it is most likely delamination happening.