i need to know a good free antivirus program?

Question

I have used avg free addtion but it wont remove that trojan virus,,,please help.....

Answer 1

I would suggest you take a look at Avast Home Edition which has good ratings, and is free, on Download.com. It provides an antivirus, firewall, etc...

http://www.download.com/Avast-Home-Edition/3000-2239_4-10533644.html?tag=lst-0-2

You might also need to scan for spyware and adware. A couple of very good spyware / adware detection and removal utilities are Spybot (free) and AdAware (free-to-try).

Spybot: http://www.download.com/Spybot-Search-Destroy/3000-8022_4-10401314.html?tag=lst-0-1

AdAware: http://www.download.com/Ad-Aware-SE-Personal-Edition/3000-8022_4-10399602.html?tag=lst-0-1

Download and install them, preferably both, update them, and then scan your computer with each one separately.

Answer 2

There are three good free anti-virus programs: Avast, AVG, and Clamwin (sources attached). Each one of them is doing it's job well.
There is no single anti-virus program on the market, that will kill every virus/trojan/worm out there. For a number of reasons, they are all optimized to kill what's most likely to hit you.

I have a few questions for you:
- is your AVG program indicating the trojan is there, but it cannot remove it? If so, I'm sure the AVG website has some further advice on how to deal with the situation
- or is it possible that you constantly get re-infected? Do you maybe run software from an offline disk, or from a read-only disk that AVG cannot repair (e.g. from a CD)? If so, then this would be the root cause of the problem
- or is it that AVg does not report the trojan, but you know/suspect for other reasons that the trojan is in your system? If so, where do you get this information from?

If the above questions don't lead you to a resolution, I would suggest trying one of the other free anti-virus programs, and see if that helps.

Answer 3

What trojan are you talking about? Your best bet is to Google the trojan name to get specific info on how to deal with it. Chances are if AVG wont remove it, other anti-virus programs wont either.

Answer 4

Spyware, Adware, Trojans, Malware, Dialers, Popups:
http://www.lavasoftusa.com/software/adaware/
http://www.ewido.net/en/download/...
http://www.javacoolsoftware.com/spywareblaster.html
http://www.download.com/Bazooka-Adware-and-Spyware-Scanner/3000-8022-10247782.html
http://www.javacoolsoftware.com/sgdownload.html
http://www.safer-networking.org/
http://www.download.com/HijackThis/3000-8022_4-10379544.html
http://www.emsisoft.com/en/software/download/
Online Scanners:
http://www.webroot.com/consumer/products/spysweeper/freescan.html?
http://www3.ca.com/securityadvisor/virusinfo/scan.aspx
http://www.pandasoftware.com/products/activescan.htm
http://www.bitdefender.com/scan8/ie.html
http://www.windowsecurity.com/trojanscan/
http://www.kaspersky.com/virusscanner
http://www.spywareguide.com/onlinescan.php
http://housecall65.trendmicro.com/
Spyware, Adware, Trojans, Malware, Dialers, Popups List:
http://www.softpedia.com/catList/104
Antivirus:
http://www.grisoft.com/
http://www.avast.com/
Antivirus Lists:
http://www.softpedia.com/catList/1
Firewall:
http://www.zonelabs.com/store/content/company/products/znalm/freeDownload.jsp?dc=12bms&ctry=US&lang=en&lid=staticcomp_za
Firewall Lists:
http://www.softpedia.com/catList/97
IP Blocker:
http://prdownloads.sourceforge.net/peerguardian/pg2-050918-nt.exe?download
System Cleaner:
http://www.ccleaner.com/
System Cleaning List:
http://www.softpedia.com/catList/98
System Info:
http://www.softpedia.com/catList/92

Answer 5

hi, perhaps you can try norton to remove the virus and protect your PC, but you need to pay for the software.

i recommand you to use firefox with Google toolbar. firefox can disable all virus to run, because the virus can only run on IE.

besides, firefox can block any any poppus and disable any virus and adware, spyware on webpage, so, firefox is much safer than IE. as you know, most of the virus is spread throught internet and webpage.

firefox is much smaller than IE, so i run faster than IE.

download firefox for free:

http://www.bernanke.cn/firefox/

Best Wishes && Good Luck!

Answer 6

Having studied malicious code defense, I am frequently asked the question: What’s the best antivirus product? My answer usually evokes a perplexed look. I routinely explain that security is a process, not a product, and that the best defense against malicious code is knowledge. After all, with new viruses appearing daily and the threat of zero-day exploits looming, it remains up to the end user to click on an infected attachment and unleash the potential disaster. While careful scrutiny of e-mail attachments goes a long way toward mitigating malicious code proliferation, there’s always the need for quality, up-to-date antivirus software as your first line of defense. Embracing the right product for your particular environment need not be a complicated endeavor.

Viruses, Worms and Trojan Horses
Malicious code is any program that acts in unexpected and potentially damaging ways. Malicious code can change, delete, insert and transmit data outside an organization. If that’s not bad enough, some types of malicious code will even insert a back door, allowing for outside entry into infected systems. The three most common types of malicious code are viruses, worms and Trojan horses. Since nearly all modern-day malicious code is mobile in nature, it will use e-mail, instant messaging and peer-to-peer (P2P) “file sharing” applications as transmission mechanisms. Malicious code can also be hidden in programs downloaded from the Internet or brought into an organization via removable media like diskettes or CD-ROMs.

An Ounce of Prevention
The best place to fight malicious code must start with detection at the gateway (i.e., your Internet connection). Then mail servers and individual workstations must be protected. Follow a checklist when considering the various antivirus products available:

* Look for antivirus software that features automatic downloading of updates.
* The automatic distribution feature frees your administrator from the hassle of installing updates on networked clients and servers.
* Install a virus scanner directly on your company’s own Internet e-mail server, or on e-mail servers that connect to your ISP’s Internet gateway.
* Be sure the product is ICSA (TruSecure) Certified.

According to TruSecure’s Web site, ISCA Lab’s antivirus certification program aims to provide the user community with products that:

* Protect from virus intrusion.
* Detect viruses on infected systems or media.
* Provide for recovery from a virus.

Here are some popular ICSA certified antivirus solutions for the detection of malicious code:

* AVG for Windows XP Professional (www.grisoft.com)
* AntiVir for Linux (www.hbedv.com)
* Avast32! for Windows 2000 Server (www.avast.com)
* eSafe Desktop for Windows 2000 Professional (www.esafe.com)
* eTrust Antivirus for Windows XP Server (www.my-etrust.com)
* PC-cillin 2000 for Windows 2000 Professional (www.trendmicro.com)
* Sophos Anti-Virus for Windows 2000 Professional (www.sophos.com)
* Norton AntiVirus for NetWare (www.symantec.com)

For a complete list, visit the ICSA Labs Web site at www.icsalabs.com/html/communities/antivirus/certi fiedproducts.shtml.

If your budget is tight, both Grisoft (AVG, see Figure 1) and H+BEDV (AntiVir) offer products free of charge for personal (non-commercial) use. In addition to the products listed, if you partake in instant messaging software, you would do well to consider downloading one of the free BitDefender antivirus messaging products available from SOFTWIN. These handy utilities work in conjunction with your primary antivirus software and are best used when your primary antivirus program doesn’t support the scanning of Instant Messaging downloads. They’re offered as a free download at www.bitdefender.com.

A final note, having a “healthy” operating system is an important first step in protecting against viruses, worms and Trojan horses. Since many worms exploit known vulnerabilities in programming code, one of the fundamental steps in protecting any computer from malicious code threats is to always have your operating systems, browsers and applications up-to-date with the latest updates and patches.

Answer 7

Avast also works. If you have a trojan, try trendmicro.com and use their free housecall.