Genesys
Technologies is a provider of managed and unmanaged Antivirus solution
for corporate clients as well as Gateway-based antivirus technologies
for deep inspection of data passing through the network.
When combined, these
solutions offer an effective protection against virus, worm, trojans,
malware and spyware, by combining heuristics, signatures and
zero-day attack protection with multiple layers of protection designed
to scan in real time without affecting the network's performance.
Some Notes on Anti-Virus
Antivirus (or anti-virus) is used to prevent, detect,
and remove
malware, including computer viruses, worms, and trojan horses. Such
programs may also prevent and remove adware, spyware, and other forms
of malware.
Traditionally, antivirus software heavily relied upon
signatures to identify malware. This can be very effective, but cannot
defend against malware unless samples have already been obtained and
signatures created. Because of this, signature-based approaches are not
effective against new, unknown viruses.
Because new viruses
are being created each day, the signature-based detection approach
requires frequent updates of the virus signature dictionary. To assist
the antivirus software companies, the software may allow the user to
upload new viruses or variants to the company, allowing the virus to be
analyzed and the signature added to the dictionary.
Although
the signature-based approach can effectively contain virus outbreaks,
virus authors have tried to stay a step ahead of such software by
writing "oligomorphic", "polymorphic" and, more recently, "metamorphic"
viruses, which encrypt parts of themselves or otherwise modify
themselves as a method of disguise, so as to not match virus signatures
in the dictionary.
A variety of strategies are typically
employed. Signature-based detection involves searching for known
malicious patterns in executable code. However, it is possible for a
user to be infected with new malware in which no signature exists yet.
To counter such so-called zero-day threats, heuristics can be used. One
type of heuristic approach, generic signatures, can identify new
viruses or variants of existing viruses by looking for known malicious
code (or slight variations of such code) in files. Some antivirus
software can also predict what a file will do if opened/run by
emulating it in a sandbox and analyzing what it does to see if it
performs any malicious actions. If it does, this could mean the file is
malicious.
Antivirus technologies are normally deployed in two
ways: As a sofware
running on a client system (antivirus software) and/or in the network
scanning traffic coming to o exiting the network (gateway antivirus).
