Proofpoint
Zero-Hour Anti-Virus
Defend against inbound threats
Proofpoint
Zero-Hour Anti-Virus protects enterprises against new
viruses and other forms of malicious code during the
critical first hours before anti-virus signatures have been
updated-and adds an additional layer of anti-virus
protection to your gateway defenses.
Benefits:
- Early, accurate detection of zero-day threats.
- Real-time protection against new virus variants.
- Fine-grained anti-virus policy control.
- Consolidated, correlated anti-virus reporting.

View: Malware Outbreak Center
Features:
Global analysis, local protection
To protect large organizations from emerging virus
attacks, Proofpoint Zero-Hour Anti-Virus software
combines global analysis of internet traffic
patterns with local containment of suspicious
messages and attachments. Proofpoint Zero-Hour
Anti-Virus constantly analyzes millions of internet
messages for anomalies that indicate a potential
virus attack. Advanced pattern recognition
technology is used to identify new viruses within
minutes of their mass distribution over the internet
with greater than 95% accuracy.
At the customer's site, Proofpoint Zero-Hour Anti-Virus analyzes incoming messages for similarities with suspected virus messages. Messages and attachments that exhibit recurrent pattern characteristics of the emerging virus are automatically quarantined at the enterprise gateway where they can be held until the availability of a production-ready virus signature.
Closing the zero-hour gap
New virus distribution methods designed to thwart
signature-based anti-virus technology—including
"short span" attacks, serial variant attacks and
attacks launched from botnets—are on the rise.
Today's enterprise needs protection that can respond
almost instantaneously to emerging threats.
Proofpoint Zero-Hour Anti-Virus identifies new virus
activity and takes preventive action at the earliest
stages of a virus outbreak, keeping your messaging
systems safe until new anti-virus signatures are
updated. Proofpoint's solution provides protection
from viruses hours before competing "outbreak
filters" react.
Precise detection, minimal disruption
Unlike other virus outbreak solutions, Proofpoint
Zero-Hour Anti-Virus software accurately detects and
quarantines only those messages associated with an
emerging virus, without stopping legitimate email.
Instead of quarantining all email with attachment
types deemed to be dangerous, Proofpoint's solution
temporarily delays only specific messages that are
classified as being part of an emerging outbreak.
Customizable policies
Proofpoint customers can easily customize their
zero-hour anti-virus policies using the Proofpoint
Messaging Security Console™, a convenient graphical
user interface to all Proofpoint policy management,
system administration and reporting features. Based
on these flexible, customer-configurable policies,
messages identified as part of a virus outbreak can
be automatically re-scanned and cleaned, deleted,
released or otherwise disposed of based on the
availability of updated virus signatures and other
conditions.
Comprehensive reporting
Like all of Proofpoint's modular messaging defenses,
Proofpoint Zero-Hour Anti-Virus includes integrated
reports that provide a complete view into the
operation of your zero-hour defenses and virus
activity in general. Built-in, graphical reports
provide visibility into the volume of messages being
classified by Zero-Hour policies, Zero-Hour virus
trends, top Zero-Hour virus types including
unverified messages, and verified virus volume
trends-allowing you to quickly show ROI for your
anti-virus initiatives.
Flexible policy management and message
disposition
Proofpoint Zero-Hour Anti-Virus works in conjunction
with the Proofpoint Virus Protection module to
provide comprehensive defense against viruses.
Together, these modules provide a proactive virus
protection layer (that does not depend on
signatures) and a fast and effective
signature/heuristics engine to efficiently verify
malicious code.
Proofpoint Zero-Hour Anti-Virus software works right out of the box with pre-configured, default policies designed to address the virus outbreak defense needs of most organizations. But Proofpoint's easy-to-use graphical interface also gives you fine-grained control over every aspect of your Zero-Hour policies.
Technology:
Zero-Hour Anti-Virus in Action
Proofpoint Zero-Hour Anti-Virus works in concert
with other Proofpoint defenses to provide nearly
impenetrable defense against viruses, worms and
other forms of malicious code.
Incoming messages are processed by a variety of defensive systems that allow only legitimate messages into your enterprise. Messages are first scanned for validity and other policy violations. They are then scanned by Proofpoint's signature-based anti-virus defenses.
Zero-Hour scanning
Messages that are declared clean by the
signature-based anti-virus filters are then passed
to the Zero-Hour Anti-Virus module to determine if
the message is part of a recent outbreak for which a
traditional signatures are not yet available:
- If the Zero-Hour Anti-Virus module determines that the message is clean, it is delivered to its intended recipient.
- If the module determines that the message is part of a new virus outbreak, the message is classified as suspect and handled as specified by the Zero-Hour policies.
Zero-Hour quarantine
Suspect messages are assigned a severity (confirmed
virus, high, or medium risk) and different policies
may be triggered based on this risk level or other
message attributes. Typically, suspect messages will
be sent to a Zero-Hour quarantine where they are
held for a designated time (e.g., until two
anti-virus signature updates are received), then the
message is resubmitted to Proofpoint Virus
Protection for rescanning.
Compare:
Comprehensive Virus Protection
Proofpoint understands that an effective defense
against today's virus threats requires more than
just signature-based protection or outbreak filters.
Proofpoint provides comprehensive protection from
malicious code through a combination of technologies
and information services.
Proofpoint Zero-Hour Anti-Virus Module
Provides immediate protection from emerging viruses,
powered by advanced pattern recognition technology
from Commtouch. Our solution offers:
- Early, accurate detection of new virus hours before competing solutions even begin to react.
- Fine-grained policy control.
- Consolidated, correlated reporting.
- Lowest total cost of ownership compared to competing zero-day solutions and reporting tools to help you quantify your ROI.
Proofpoint Virus Protection Module
Proofpoint also provides signature-based protection
using leading anti-virus engines from F-Secure or
McAfee:
- Continually updated protection against the latest viral threats
- Scan both inbound and outbound "zombie" traffic
- Flexible policy and dispositions
Virus Lifecycle Information
Proofpoint provides up-to-date information on viruses in the wild and the state of virus-related threats affecting your enterprise:
- Alerts and news channels to educate your users
- Centralized reporting for 360 degree view of virus activity affecting your enterprise
Diagram:
Closing the Zero-Hour Gap

Documentation:
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Download the Proofpoint Zero-Hour Anti-Virus Datasheet (PDF).


