-- Ease of Removal
1: Consistent file contents
2: Consistently named
3: Creates new registry entries with consistent data
-- Damage/Intrusion/Annoyance
1: Downloads other threats
2: Autoruns at startup without an option to be disabled
3: Displays targeted popup advertisements [SPYWARE ONLY]
-- Propagation/Saturation
1: Creates new files
2: Significantly slows down the computer
3: Displays error messages due to buggy code
4: Spreads from embedded code in an email [VIRUS ONLY]
5: Spreads through Peer-2-Peer software [VIRUS ONLY]