| name | type | date isolation | country of isolation | continent of isolation | country of origin | continent of origin | Operating system affected | Developer |
|---|---|---|---|---|---|---|---|---|
| Form (computer virus) | 06/1990 | Switzerland | Europe | Switzerland | Europe | DOS | ||
| Koobface | Russia | Europe | ||||||
| OneHalf | 1994 | Slovakia | Europe | DOS | ||||
| VirusHeat | Russia | Europe | Microsoft Windows | |||||
| Whale (computer virus) | 01/07/1990 | Germany | Europe |