-- Ease of Removal
1: Consistently named
2: Consistent file contents
3: Creates new registry entries with consistent data
4: Uses running processes
-- Privacy Risks/Security Changes
1: Transmits personal data to remote computers
2: Harvests personal data
3: Mimics legitimate file names
-- Damage/Intrusion/Annoyance
1: Significantly slows down the computer
2: Creates new files
3: Autoruns at startup without an option to be disabled
4: Downloads other threats
-- Propagation/Saturation
1: Infects from a link in an email
2: Infects from an email attachment
3: Installed by other infections