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Antivirus Software for Windows

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Browse free open source Antivirus software and projects for Windows below. Use the toggles on the left to filter open source Antivirus software by OS, license, language, programming language, and project status.

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  • 1
    ClamWin

    ClamWin

    Antivirus software with virus scanning and virus definition updates

    Looking for free Open Source Antivirus for Windows? Download ClamWin Free Antivirus and get free virus scanning and free virus definition updates. Free Antivirus software for Windows, using the well-respected ClamAV scanning engine. Includes virus scanner, scheduler, virus database updates, context menu integration to MS Windows Explorer and Add-in to MS Outlook. Also features easy setup program.
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    Downloads: 5,255 This Week
    Last Update:
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  • 2

    dex2jar

    Tools to work with android .dex and java .class files

    Mirrors: * https://bitbucket.org/pxb1988/dex2jar * https://github.com/pxb1988/dex2jar dex2jar contains following compment * dex-reader is designed to read the Dalvik Executable (.dex/.odex) format. It has a light weight API similar with ASM. * dex-translator is designed to do the convert job. It reads the dex instruction to dex-ir format, after some optimize, convert to ASM format. * dex-ir used by dex-translator, is designed to represent the dex instruction dex-tools tools to work with .class files. * d2j-smali disassemble dex to smali files and assemble dex from smali files. different implementation to smali/baksmali, same syntax, but we support escape in type desc "Lcom/dex2jar\t\u1234;" * dex-writer write dex same way as dex-reader.
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    Downloads: 459 This Week
    Last Update:
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  • 3
    Clam sentinel is a program that detects file system changes and automatically scans the files added or modified using ClamWin. Require the installation of ClamWin. For Microsoft Windows 98/98SE/Me/2000/XP/Vista, Windows 7 and Windows 8.1.
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    Downloads: 152 This Week
    Last Update:
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  • 4

    Antivirus Live CD

    4MLinux fork including ClamAV scanner

    Antivirus Live CD is an official 4MLinux fork including the ClamAV scanner. It's designed for users who need a lightweight live CD, which will help them to protect their computers against viruses. Ethernet, WiFi, PPP and PPPoE are supported by Antivirus Live CD to enable automatic updates of its virus signature databases. All partitions are mounted during the boot process so that they can be scanned by ClamAV. The Antivirus Live CD ISO images are fully compatible with UNetbootin, which can be used to create an easy-to-use Antivirus Live USB.
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    Downloads: 201 This Week
    Last Update:
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  • Cynet All-in-One Cybersecurity Platform Icon
    Cynet All-in-One Cybersecurity Platform

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  • 5
    Robolinux

    Robolinux

    Announcing Robolinux Cinnamon 14.1

    Announcing The New Robolinux Series 14 Mate LTS - 2034 Robolinux is very pleased to announce a completely new 14.1 Mate privacy centered 1inux operating system you can download freely while also offering our users an optional 14+ advanced upgrade which comes with our Untracker and FAAST Boot along with one click popular privacy software installers like Tor and I2p, Wireshark and Bleachbit plus many more for a fair and reasonable price. Robolinux14.1-Mate is ideal for beginners and advanced users. We are proud that it comes with Enoch AI which is TOTALLY 100% PRIVATE, FREE, HONEST & UNCENSORED built into Robolinux Cinnamon 14.1 The Robolinux 14.1 version with rock solid Long Term Support through 2034! requires users to set secure boot in their BIOS. It is currently available in the Cinnamon desktop flavor. we will release series 14 Xfce version in the next two months.For more information please see Readme file. Warmest regards John Martinson Robolinux.org
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    Downloads: 149 This Week
    Last Update:
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  • 6
    USB Shortcut VIRUS remover

    USB Shortcut VIRUS remover

    This simple program removes the shortcut virus from the USB.

    PS. this is not an antivirus !!! This simple program removes the shortcut virus from the USB. This will enable you to have access to the files without clicking on the shortcut icon (this silly one YES!!). You will have to follow these steps: 1- insert your infected USB storage device 2- record the USB drive letter (eg. E: F:) 3- open usb-shortcut-remover.hta file. 4- enter the device letter in the empty text field. 5- click the arrow next to the text field. 6- wait until it is done. 7- access your USB drive. you will find an unnamed folder. 8- access the unnamed folder, you will find all your files. Buy us coffee https://www.buymeacoffee.com/sewagecode
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    Downloads: 473 This Week
    Last Update:
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  • 7
    Shortcut Virus Removal Tool

    Shortcut Virus Removal Tool

    Powerful and Easy to Use USB Shortcut Virus Removal Tool for Windows

    Shortcut Virus Removal Tool Shortcut Virus Removal Tool is a powerful, portable, easy to use and safe program for fixing USB drives and computers infected with shortcut virus. With only one click, you can remove shortcut virus from your computer and USB disk drive. It can restore files hidden by a virus and remove suspicious shortcuts and files from your USB drive and computer. It can also delete autorun virus from your USB drive. It has a very simple interface. You just have to select your USB drive from list and click Clean button. If the tool does not work, please right click and "Run as Administrator." It requires .NET Framework 4.0 and Windows XP or later.
    Downloads: 283 This Week
    Last Update:
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  • 8
    A tool to block viruses in USB flash/disk from auto-running. When a USB disk is inserted, this tool not only locks the "autorun.inf" file, but also locks all the autorun-related virus and other suspicious files.
    Downloads: 12 This Week
    Last Update:
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  • 9
    RogueKiller

    RogueKiller

    The next generation virus killer. Remove unknown malware

    The next generation virus killer. Remove unknown malware, stay protected. Free virus cleaner for everyone. Thanks to its powerful engine RogueKiller is able to find known and unknown malware, of all kind. Search and clean viruses, ransomware, trojans and other malware. Powered with innovative Artificial Intelligence and Cloud signatures engine, RogueKiller is the best virus removal tool. Try our free virus cleaner now for free ! RogueKiller antimalware software is shipped with state-of-the-art malware protection. The real time protection stops infected programs before they execute. Don't let malicious software setup, stop them before they do harmful actions! Protect your important documents against corruption and theft. With the increasing threat of Ransomware, it's very important to keep your documents secured. Don't be the next victim of a thousand dollars ransom, turn RogueKiller anti ransomware protection on!
    Downloads: 43 This Week
    Last Update:
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  • 10
    Thanks for your support..
    Downloads: 5 This Week
    Last Update:
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  • 11
    CyberGod KSGMPRH

    CyberGod KSGMPRH

    Open-Source antivirus for Windows

    This is an effective tool which is capable of detecting thousands and thousands of malware in your PC, including the shortcut virus to nasty ransomware, The database is regularly updated. See the video for how to use this tool. Version: 1.3 MD5: 707D4BE2AA4547A542A7EEFDB7BC4C4D SHA-1: 899B80928DF59C5745B56480DAA6A51E7F65CB18A4 Source code MD5: 38B3A08D62E7ADD2EE30FCA375207499 IMPORTANT: =========== FULL VERSION : https://sourceforge.net/projects/cybergod-ksgmprh/ NOTE: ===== If this tool has helped you consider supporting it please http://bit.ly/supportCyberGodKSGMPRH via paypal http://bit.ly/CyberGodSecurityDonate
    Downloads: 6 This Week
    Last Update:
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  • 12
    ClamSAP exists of two 'C' shared libraries which link between ClamAV and the Virus Scan Interface (VSI) of SAP (offical name: NW-VSI). A SAP application can use the ClamAV engine to scan for malicious uploads in HTTP uploads for example.
    Downloads: 15 This Week
    Last Update:
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  • 13
    Spybot Search and Destroy

    Spybot Search and Destroy

    Protect your computer against malware

    Spybot - Search & Destroy is an anti-spyware and privacy protection tool that has been providing quality security solutions since the early 2000's. Spybot S&D provides complete anti-malware and anti-spyware protection as the System Scan aims to detect and remove all kinds of threats from your Windows PC. These include Adware, Spyware, Trojans and many more. Spybot's Immunization feature keeps you safe online by preventing access to malicious sites and blocks tracking cookies. Spybots Forensics Detectives are constantly on the look out for the latest forms of malware and continuly adding new detection rules.
    Downloads: 15 This Week
    Last Update:
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  • 14
    Cleanzone AntiVirus

    Cleanzone AntiVirus

    Cleanzone is a beta-stage antivirus offering multi-layered protection

    CleanZone is an advanced antivirus solution designed to provide multi-layered protection for your device. It offers real-time scanning, heuristic detection to identify emerging threats, USB protection, and customizable security features. With its comprehensive approach, CleanZone ensures your device is safeguarded against viruses, malware, phishing attacks, and other online threats, providing peace of mind and optimal performance for all your computing needs.
    Downloads: 18 This Week
    Last Update:
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  • 15
    HydraDragonAntivirus

    HydraDragonAntivirus

    Dynamic and static analysis with Sandboxie for Windows, including EDR

    Dynamic and static analysis with Sandboxie for Windows, including EDR, ClamAV, YARA-X, custom machine learning AI, behavioral analysis, NLP-based detection, website signatures, Ghidra, Suricata, Sigma, and much more than you can imagine
    Downloads: 11 This Week
    Last Update:
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  • 16
    Shortcut Virus Remover

    Shortcut Virus Remover

    Sample and fast software to remove Shortcut Virus

    Shortcut Virus Remover is an easy to use application, capable of detecting the presence of the Shortcut threat. The software can easily fix the damage done by the virus, thus restoring all the icons in the selected drive. The application is lightweight and requires only that you select the drive you wish to clean.
    Downloads: 11 This Week
    Last Update:
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  • 17
    clamwin portable

    clamwin portable

    portable zipped version of the free and open source antivirus ClamWin

    portable zipped version of the free and open source antivirus ClamWin. ClamWin is a Free Antivirus program for Microsoft Windows 10 / 8 / 7 / Vista / XP / Me / 2000 / 98 and Windows Server 2012, 2008 and 2003. ClamWin Free Antivirus is used by more than 600,000 users worldwide on a daily basis. It comes with an easy installer and open source code. You may download and use it absolutely free of charge. Just unzip and run \bin\ClamWin.exe http://www.clamwin.com https://sourceforge.net/projects/clamwin
    Downloads: 11 This Week
    Last Update:
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  • 18

    Orca AntiVirus

    Orca antivirus for Windows PC, virus and malware cleaner

    Free antivirus for Windows PC, speeds up Windows PC and laptop. Orca antivirus is made to work on all versions of windows above Windows Vista and is capable of detecting viruses and malware. Orca antivirus does not offer any premium and is 100% free
    Downloads: 10 This Week
    Last Update:
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  • 19
    Removes most common pen drive viruses such as autorun.inf, new folder.exe, bha.vbs, ravmon.exe, etc.....
    Downloads: 9 This Week
    Last Update:
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  • 20
    eEye Retina Community

    eEye Retina Community

    Powered by the same engine as the world famous Retina Network Scanner

    Powered by the same engine as the Retina Network Security Scanner, Retina Community is a completely free security scanner for up to 128 IPs. Use it to scan servers, desktops - any networked device - for security flaws, and learn how to fix them. New: Now, you can scan virtual applications, deployed via VMware ThinApp, for flaws as well. This is a new industry development, completely unique to eEye.
    Downloads: 11 This Week
    Last Update:
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  • 21
    An open source browser with antivirus, system cleaning, file folder locking, social networking, movie viewing, chatting and parental website block features.
    Downloads: 8 This Week
    Last Update:
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  • 22
    AdwCleaner
    AdwCleaner is a free tool that will scan your computer and efficiently removes Adware (ads softwares), PUP/LPI (Potentially Undesirable Program), Toolbars, Hijacker (Hijack of the browser's homepage). It also features anti adware host that will help to prevent advertising software from installing on your machine. It works with a Search and Delete mode. It can be easily uninstalled using the mode "Uninstall". AdwCleaner is now part of the Malwarebytes family. We at Malwarebytes are big fans too. That's why we've asked Jerome Boursier, Corentin Chepeau, and the rest of the AdwCleaner team to join us. We're now working together to make a malware-free existence a reality for everyone. Don't worry--we will maintain, support, and keep AdwCleaner free for everyone. We believe in its mission, and will be integrating its technology into Malwarebytes products in the future. Learn more about the acquisition.
    Downloads: 5 This Week
    Last Update:
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  • 23
    ComboFix

    ComboFix

    Scan for and remove malware and spyware

    Combofix is a freeware program that scans and removes malware and spyware from computers running Windows XP, Vista, 7, and 8. It was created by sUBs and is designed for advanced users. Combofix can remove malware that other products cannot. It backs up your registry hives, quarantines files, and creates a log of its actions.
    Downloads: 5 This Week
    Last Update:
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  • 24
    Fiesta

    Fiesta

    Easy Antivirus

    Fast antivirus software
    Downloads: 4 This Week
    Last Update:
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  • 25
    Simple Read-Only protection tool for removable devices. Make Empty File on selected disk with required size. Most common usage - place executable file on USB-flash drive and run it for space filling. When free space will need, delete empty file.
    Downloads: 4 This Week
    Last Update:
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