Virus Definitions Apps and Alternatives
21 applications in this hubLast updated: Jan 18th 2019, 09:55 GMT
Once installed, anti-malware applications have to be regularly updated with the latest definitions to be able to protect your computer from the newest threats, whether we're talking about ransomware, Trojans, spyware, rootkits, backdoors, or something else.
Most antivirus tools run these checkups automatically and frequently, so you don't have to worry about doing this yourself. However, many companies release virus definitions as separate, offline files, which can be manually downloaded by users.
This might seem unnecessary for those with a round-the-clock Internet connection since the automatic checkup mode should take care of everything in the background, but the virus definition packages can be used to update antimalware programs that don't have Internet access.
For this hub, we've carefully selected the virus definitions of antivirus tools with frequent updates, from daily to weekly and, in some rare cases, monthly. Most of them contain the date of last update in the program version, so you can easily spot the daily updates.
If you're not sure about which antivirus to use, you can check out our hubs with free antivirus and portable antivirus utilities. We also have hubs with apps designed to scan for viruses, along with small-sized tools made to uninstall antivirus products.
- 376,495 downloads
- 133 MB
Install the latest Windows Defender definition updates and make sure your computer is safe from vi...
- 357,680 downloads
- 133 MB
Manually install the latest antivirus definitions for Microsoft Security Essentials in case your c...
- 535,366 downloads
- 168 MB
The latest virus definitions for your Avast antivirus, providing an alternative method to keep the...
- 2,603,146 downloads
- 148 MB
The latest free virus definitions for AVG Antivirus, which you can use to perform manual updates i...
- 16,491,727 downloads
- 77.5 MB
Download the virus definitions file to easily always keep versions 10 and older of the popular Avi...
- 381,944 downloads
- 272 MB
The latest virus definitions for BitDefender Antivirus, BitDefender Antivirus Plus and BitDefender...
- 103,534 downloads
- 16.2 MB
The files you need to keep Malwarebytes Anti-Malware up-to-date in case your computer is no longer...
- 3,933,074 downloads
- 66.2 MB
Signature packages containing the latest free virus databases for various Symantec antivirus softw...
- 3,559,976 downloads
- 123 MB
Download McAfee virus pattern and engine updates and make sure that your McAfee antivirus can prot...
- 244,410 downloads
- 7.04 MB
Update the definitions of your Spybot - Search and Destroy manually without requiring the WebUpdat...
- 154,491 downloads
- 54.7 MB
A collection of Virus Pattern Files that are updated to their latest virus database definitions an...
- 117,284 downloads
- 317 MB
Keep Vipre up-to-date with the latest definition files by manually installing the required package...
- 94,918 downloads
- 48.4 MB
The up-to-date virus signature files for the ClamAV antivirus, which can be downloaded in case the...
- 56,179 downloads
- 262 MB
Manually update the definitions of the following Bitdefender products: Total Security 2008, Intern...
- 69,883 downloads
- 29.3 MB
Keep SUPERAntiSpyware up-to-date with the latest definitions even if your computer is not connecte...
- 53,016 downloads
- 195 MB
Manually update Ikarus Virus Utilities and T3 Command Line Scanner by using this file that provide...
- 269,872 downloads
- 388 MB
Contains the latest virus definitions for the F-Secure product line, including Workstation, Antivi...
- 9,445 downloads
- 112 MB
Keep your ClamWin Free Antivirus definition database up to date by manually adding database files ...
- 1,193 downloads
- 253 MB
Keep REVE Antivirus, Internet Security and Total Security up to date with the latest virus definit...
- 137,615 downloads
- 1.4 GB
Daily signature and virus definitions updates for your Quick Heal products, allowing the manual up...
- 13,677 downloads
- 416 MB
Update your Comodo Antivirus or Internet Security database to its latest version by using this pac...