User's Manual Part 2

Overview
266 Check Point Safe@Office User Guide
Table 57: VStream Antivirus Actions
If a virus if found in
this protocol...
VStream Antivirus does this... The protocol is detected
on this port...
HTTP
• Terminates the
connection
All ports on which VStream is
enabled by the policy, not
only port 80
POP3
• Terminates the
connection
• Deletes the virus-
infected email from the
server
The standard TCP port 110.
IMAP
• Terminates the
connection
• Replaces the virus-
infected email with a
message notifying the
user that a virus was
found
The standard TCP port 143
SMTP
• Rejects the virus-
infected email with error
code 554
• Sends a "Virus
detected" message to
the sender
The standard TCP port 25
FTP
• Terminates the data
connection
• Sends a "Virus detected"
message to the FTP
client
The standard TCP port 21
TCP and UDP
• Terminates the
connection
Generic TCP and UDP ports,
other than those listed above
Note: In protocols that are not listed in this table, VStream Antivirus uses a "best
effort" approach to detect viruses. In such cases, detection of viruses is not
guaranteed and depends on the specific encoding used by the protocol.