How do i manage virus and melware in Unix ?
Not as vulnerable, but the usual suspects are selling:
McAfee Releases Antivirus For Linux
linux antivirus software - Google Search=
General answer.
Virus and Malware code can affect both unix and Linux systems. Mail and file storage systems can also relay bad code without protection. It is nowadays normal to install a robust Firewall and Malware/Virus protection on servers in addition to protecting each and every client against Malware/Viruses.
Not an endorsement, but another link to read.
Endpoint Security | Firewall | Data Protection | Anti-virus Software | Virus Protection - Sophos