ESET NOD32 Antivirus Version 4.0

ESET NOD32 Antivrus Version 4.0

Best Detection ESET is the leader in proactive, precise threat protection with more Advanced+ awards for superior threat detection than any other vendor since May 2005. (source AV-Comparatives.org)

ThreatSense™ technology detects more than 75% of new, unknown, threats heuristically - even before a signature update is available. It detected most variants of MyDoom, Netsky, Bagel and Mytob heuristically. (source AV-Test.org)
ESET ThreatSense is the only antivirus technology that has not missed a single In-the-Wild virus in rigorous Virus Bulletin VB100 testing since May 1998. (source virusbtn.com)

Low False Positive Rate
A very low false positive rate ensures that the "good" files on your computer will not be flagged as malware. This is due to the intelligent synergistic use of advanced heuristics and generic signatures. ESET ThreatSense has produced the fewest false positives in its long history of testing with Virus Bulletin.

Fastest Performance
42 MB/sec average scanning rate on Windows XP SP2 (source: Virus Bulletin).
Up to 34 times faster than the leading brands under Windows XP

Minimal Resource Utilization
Optimized engine uses approximately 38 MB memory on average.
Uses less than 40M of disk space.

Comprehensive Protection

Running separate applications for viruses, hackers, adware, and spyware can slow your PC, be difficult to manage, and provide questionable protection. Beware of large, bloated internet security suites that consume hundreds of megabytes on your PC. These typically exist because vendors have acquired products and 'bundled' them together. In contrast, ESET NOD32 was designed from the core as a single, highly-optimized engine that works as a unified Anti-Threat system to protect against a broad spectrum of malware. Viruses, worms, spyware, and other malicious attacks, which are constantly evolving. ESET NOD32 utilizes patent-pending ThreatSense® Technology to detect tomorrow's threats in real-time, by analyzing code execution for malicious intent - keeping you ahead of the malware-writers.

Proactive Real-Time Detection

The best security is proactive. Malware protection must be real-time at the point of impact. Every minute one waits for a virus signature update creates a window of vulnerability that could have devastating consequences. ESET NOD32's ThreatSense® Technology closes the window of vulnerability left open by other reactive , signature-based responses.

NOD32 analyzes application execution in real-time for malicious intent to detect and block over 90% of new malware threats proactively, without the need for signature updates in most cases. Most other vendors release signatures hours after their customers have been victimized and submitted samples.

Integrated Protection

Viruses, worms, adware, and spyware can and should be detected by a single engine. A well-designed, integrated application like ESET NOD32 can detect adware, spyware, viruses, rootkits, and other malicious attacks. Running separate applications for viruses, hackers, adware, and spyware can slow your PC, be difficult to manage, and provide questionable protection. Beware of large, bloated internet security suites that consume hundreds of megabytes on your PC. These typically exist because vendors have acquired products and 'bundled' them together. In contrast, ESET NOD32 was designed from the core as a single, highly-optimized engine to stop malware.

Protection against threats from multiple input vectors is provided by the following modules:

NOD32
An on-demand scanner, which can be run manually on specific files or disk segments. It can also be scheduled to run during off-peak times.
Antivirus MONitor (AMON)
An on-access (memory-resident) scanner, which automatically scans files before they're accessed.

Internet MONitor (IMON)
A memory-resident scanner that runs on the Winsock level to prevent infected files from reaching the computer's disks. Its scans internet web browsing traffic (HTTP) and incoming e-mail via the POP3 protocol.

E-mail MONitor (EMON)
An auxiliary module for scanning incoming/outgoing e-mails via the MAPI interface, such as Microsoft Outlook Microsoft Exchange.

Document MONitor (DMON)
Utilizes the proprietary Microsoft API for scanning Microsoft Office documents (including Internet Explorer).

Fast Performance
Great detection doesn't have to slow down your computer. Written largely in assembly language, NOD32 continually wins awards for the fastest performance of any antivirus application, on average 2 to 5 times faster than the competition (source: Virus Bulletin). Switch to NOD32 and upgrade your computer's performance.

Smallest Footprint
NOD32 conserves resources on disk and in memory, leaving more for your critical applications. The installer is just 8.6 MB and the application takes up less than 20 MB in memory (this fluctuates with changes to the detection technology). ThreatSense® updates, which includes heuristics logic and signatures, are usually between 20 kB and 50 kB. Switch to NOD32 and reclaim precious resources.

Minimal Performance Impact
NOD32 conserves resources in memory and on disk, leaving more for your critical applications. The installer is just 11 MB and the application consumes an average 23 MB in memory (this fluctuates with changes to the detection technology). ThreatSense® updates, which include heuristics logic and signatures, are usually between 20 kB and 50 kB. Switch to NOD32 and be more productive.

Easy to Manage
Program and database updates are automatically performed behind the scenes. If you're an individual or home office user you can just 'set it and forget it.' Businesses and organizations with large distributed networks can use the powerful Remote Administrator to centrally deploy, install, monitor and manage thousands of NOD32 workstations and servers. Get the best protection with the smallest footprint and fastest performance. NOD32 offers multiple layers of protection for your organization, at the desktop, file server and mail gateway. Find out which solution is best for you.

System Requirements

Processors supported: Intel or AMD x86 and x64
Operating Systems: Microsoft Windows 2000, Microsoft Windows XP (32 and 64-bit editions), Microsoft Windows Vista (32 and 64-bit editions), Microsoft Windows7(32 and 64-bit editions)
Memory: 33 - 38 MB on average
Disk Space (download): 16MB
Disk Space (installation): 38MB