Avast Antivirus

System Requirements :

• Processor Pentium 3, 128 MB RAM, 100 MB of free hard disk space

• Microsoft Windows 2000, Microsoft Windows XP/Vista/7 (32/64 bit)

Real time anti-rootkit protection

Unique "on access" technology checks all kernel-mode drivers that the operating system is loading for signs of rootkit behavior. This enables even unknown rootkits to be detected and stopped before they can do any damage.

Scanning :

Boot-time scanner

Allows you to scan your computer for infections before the operating system has started and before a virus can be activated (32-bit operating systems only).

Wake-up for scan

Microsoft Windows is woken from sleep or hibernation mode, performs a scheduled scan, then returns back to sleep mode.

Scheduled scanning

Allows users to define the scan time and files to be scanned.

Shield :

Behavior Shield

Monitors activity on your computer using a number of sensors (file system, registry and network based) and reports/blocks any suspicious behavior.

Behavioral Honeypots

avast! sensors identify and monitor suspicious file activity on selected computers, automatically submitting files to the Virus Lab for additional analysis.

File System Shield

Real-time scanning of opened/executed files.

Mail Shield

Scans all incoming/outgoing e-mails for malware. For MS Outlook, a special plug-in is used. Other email clients are protected by a generic POP3/IMAP4/SMTP proxy. New in version 5, the proxy also supports scanning of SSL communication (gmail.com, sympatico.ca, ….)

Web Shield

Scans all visited web pages and checks all files, pages and java scripts downloaded from the internet. Thanks to the Intelligent Stream Scan feature, the Web shield doesn't slow down your web browsing.

P2P Shield

Checks files downloaded using P2P programs. - ABC, Ares, Azureus, BearShare, Bit Torrent, BitComet, BitLord, BitPump, CZDC++, Direct Connect, eDonkey, eMule, iDC++, iMesh, Kazaa, Kceasy, LimeWire, Morpheus, Opera's DC++, Overnet, Qtrax, Shareaza, SoulSeek, StrongDC++, uTorrent, Vuze, WinMX, Winny2, Zultrax.

IM Shield

Checks files downloaded while using instant messaging or “chat” programs. - AIM (AOL Instant Messenger), Gadu-Gadu, gaim/Pidgin, Google Talk, ICQ, IM2 Messenger, Infium, Miranda, mIRC, MSN/Windows Messenger, Odigo, PalTalk Messenger, Psi Jabber Client, QIP, QQ, SIM, Skype, Tlen, Trillian, WengoPhone, XFire, Yahoo! Messenger.

Network Shield

Provides protection against network-based viruses. The module has two main components: a URL blocker, designed to block malicious URLs (as defined by the Virus Lab), and a lightweight intrusion-detection system.

Download Avast Free Antivirus here