[Khazul]

The sound in that mp3 varies quite a bit through the track. Seems to start witha single saw detune down by a couple of octaves later sounds like a unison or mild chorus used. In another bit sounds like sync or maybe ring mod used as well, though not sure if in synth or external effect - I suspect an external fx chain.

Either way, the rest of the post osc chain sounds like a hard tube like distortion unit - some guitar pedal or other I would guess run through a steep filter - 24db/oct, maybe even 36db/oct with a tiny bit of reso to add bite to the filter.

Simple - detune down by a couple of octaves add hard tube like distortion and filter to taste - probably needs a 24db/oct filter after the distortion unit.

Virus can add distortion after the first filter stage, but can only add a 12db/oct second filter unless you use multi mode and feed outs to ins or maybe use the fx filter as well (one of the distortion fx options) and link both filter 2 and the fx filter to the mod wheel.

I dont think you are going to that that close - in concept certainly, but not in actual sound character.

Easiest way I would reproduce it would probably not be using a virus as a starting point - I think you would want something with a much more meaty raw saw osc than a VA typically has - nord g2, some analog synth or alesis ion or fusion, then a bunch of analog guitar fx for the rest. Im sure a bunch of plugins would do the job.

That filter is quite characteristic - someone here might even recognise it. There are certainly a bunch of boutique analog distortion and filter units that come to mind that would easily do the job.

Maybe someone here will chime in with other thoughts on this.