Mind Doctors Make Acid has released MDMA Basic Filter, a freeware filter VST effect with a customizable LFO (Windows only, made with SynthMaker).
MDMA Basic Filter is a simple filter plugin with lfo and modulation envelope. If you need a simple filter with modulation this is ideal for you.
MDMA Basic Filter is available for free download via Mind Doctors Make Acid.
Links
Download MDMA Basic Filter: click here