635:, bucketed as follows: 106135 Banking Trojans (trojans targeted towards stealing financial information); 26875 Botnets (malware for making the victim a part of a botnet); 190371 Information Stealers (programs designed to steal client information. E.g. Keyloggers); 52422 Loaders (program that loads one or more other malicious programs – that is, a stager that fetches harmful things directly into memory); 1321 Miners (crypto currency miners); 30251 RATs (Remote access tools. E.g. Backdoors); and 8273 Trojans (a generic multipurpose malware that harms the user in different ways – generally disguises itself and delivered by tricking the user). Splunk's study concluded ClamAV was 59.94% effective overall at detecting commodity malware – being able to detect 249,696/416,561 samples.
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47:
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In that same study, ClamAV performed relatively well at detecting certain types of malware in certain types of files (E.g. DOCX files, DIL files, ELF files, DOC files and EXE files), but was less effective in detecting malware in JAR files, JS files, VBS files, Z files, RAR files, and XLSB files. In
608:, a free, open-source app called Clam Sentinel did use to detect file changes and scanned modified files using ClamWin. It did work with Windows 98 and later. In addition to on-access scanning, it used to feature optional system change messages and proactive heuristic protection.
623:
In a
Shadowserver six-month test between June and December 2011, ClamAV detected over 75.45% of all viruses tested, putting it in fifth place behind AhnLab, Avira, BitDefender and Avast. AhnLab, the top antivirus, detected 80.28%.
895:
job facilitated by the graphical interface. ClamXav can detect malware specific to macOS, Unix, or
Windows. The ClamXav application and the ClamAV engine are updated regularly. ClamXav is written and sold by Canimaan Software
384:. Barracuda Networks counter-sued with IBM-obtained patents in July 2008. On May 19, 2011, the U.S. Patent and Trademark Office issued a Final Rejection in the reexamination of Trend Micro's U.S. patent 5,623,600.
658:
Sanesecurity is an organization that maintains a number of such databases; in addition they distribute and classify a number of similar databases from other parties, such as
Porcupine, Julian Field, MalwarePatrol.
665:
ClamAV Unofficial
Signatures are mainly used by system administrators to filter email messages. Detections of these groups should be scored, rather than causing an outright block of the "infected" message.
891:
ClamXav is a port which includes a graphical user interfaces and has a "sentry" service which can watch for changes or new files in many cases. There is also an update and scanning scheduler through a
1400:
639:
addition, ClamAV performed well to detect a few top level categories of malware like
Trojans & Botnets but performed poorly on other malware types like Crypto Miners, RATs and Info Stealers.
708:
has included ClamAV since version 10.4. It is used within the operating system's email service. A paid-for graphical user interface is available from
Canimaan Software Ltd in the form of
482:
The ClamAV virus database is updated at least every four hours and as of 10 February 2017 contained over 5,760,000 virus signatures with the daily update Virus DB number at 23040.
585:
In order to use ClamOnAcc, users need to first run clamd and then start the On-Access
Scanner as root (to leverage its kernel event detection and intervention capabilities).
1023:
690:
On Linux servers ClamAV can be run in daemon mode, servicing requests to scan files sent from other processes. These can include mail exchange programs, files on
595:
Users can run multiple instances of ClamOnAcc simultaneously with different configurations, allowing for customized protection settings for various directories.
993:
enables ClamWin to scan downloaded files. Several other extensions allow users to process downloaded files with any software and scan the files with ClamWin.
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1404:
830:(GUI) but instead is run from the command line, a number of third-party developers have written GUIs for the application for various platforms and uses.
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emails can be detected using antivirus techniques. However, false positive rates are inherently higher than those of traditional malware detection.
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for its distribution of ClamAV as part of a security package. Trend Micro claimed that
Barracuda's utilization of ClamAV infringes on a
1028:
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software which installs and presents a graphic interface for using ClamAV to scan for viruses, and provides other unrelated functions.
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ClamAV was initially released with version 0.10 on May 8, 2002, by Polish university student Tomasz Kojm. In 2007, it was acquired by
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comparison of antivirus tools, ClamAV scored poorly in on-demand detection, avoiding false positives, and rootkit detection.
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582:" can considerably impact performance, especially in commonly accessed directories, so it is advised to use it judiciously.
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Nowadays, the Real-Time
Protection in Linux Systems, is provided through ClamAV's ClamOnAcc application (under the name of "
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601:(v0.102+) is a client application that operates alongside clamd (the ClamAV daemon), to perform On-Access Scanning.
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977:. Features include on-demand (user-started) scanning, automatic updates, scheduled scanning, and integration with
687:-based operating systems. In most cases it is available through the distribution's repositories for installation.
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program, Counteragent scans emails for viruses using ClamAV and also optionally provides spam filtering through
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On Linux and BSD desktops ClamAV provides on-demand scanning of individual files, directories or the whole PC.
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add-on for the Linux kernel (version 3.8 and later.) Alternatively, one could use ClamFS (for any
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ClamAV includes a command-line scanner, automatic database updater, and a scalable multi-threaded
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platforms. The build process is simple and provides basic functionality, including library, the
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Another program which uses the ClamAV engine on macOS, is
Counteragent. Working alongside the
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The ClamAV engine can be reliably used to detect several kinds of files. In particular, some
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320:. Both ClamAV and its updates are made available free of charge. One of its main uses is on
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ClamWin is a graphical user interface front-end ClamWin Pty Ltd. developed for ClamAV on
509:
Please help update this article to reflect recent events or newly available information.
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460:, FSG, Petite, NsPack, wwpack32, MEW, and Upack, or obfuscated with SUE, Y0da Cryptor.
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can detect and prevent access to malicious files based on the verdict received from
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running on an anti-virus engine from a shared library. The application features a
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575:", alerting users of any threats detected without actively blocking file access.
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Clam AV 0.95.2, running a definition update, scanning a file and identifying a
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Brad Wardman; Tommy Stallings; Gary Warner; Anthony Skjellum (5 August 2011).
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37:
2500:
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2049:
1251:"Anatomy of a Dying Patent – The Reexamination of Trend Micro's '600 Patent"
1049:"ClamAV 1.4.1, 1.3.2, 1.0.7, and 0.103.12 security patch versions published"
900:
748:
539:
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conducted an efficacy study involving 416,561 malware samples sourced from
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1734:
Immunet, powered by ClamAV, is a Windows desktop anti-virus (AV) solution
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to provide real-time protection by scanning files when they are accessed.
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with additional options available in the On-Access Scanning User Guide.
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1446:"Anti-virus comparison test of current anti-malware products, Q1/2008"
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1159:"Trend Micro patent claim provokes FOSS community, leads to boycott"
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SecuriteInfo.com also provides additional signatures for ClamAV.
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Configuration for On-Access Scanning is primarily done through
400:
interface for sent mail and on-demand scanning. It recognizes:
1206:"Barracuda bites back at Trend Micro in ClamAV patent lawsuit"
1079:
871:
783:
489:
457:
1943:"FireClam: Use ClamAV to scan Firefox downloads for viruses"
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shares, or packets of data passing through a proxy server.
1898:
1649:
1534:"High-Performance Content-Based Phishing Attack Detection"
1147:
Cisco Acquires Cybersecurity Company Sourcefire For $ 2.7B
380:
against Trend Micro. The boycott was also endorsed by the
2087:
248:
786:
variants of ClamAV available for Windows; additionally,
1770:"Clamav, ClamAV-GUI (Rexx & QT4) & eCSClamav"
1401:"Clam Sentinel – Making ClamWin Be Used In Real-Time"
1515:"How Good is ClamAV at Detecting Commodity Malware?"
1497:"How Good is ClamAV at Detecting Commodity Malware?"
2596:
2509:
2319:
2312:
2132:
654:There are several unofficial databases for ClamAV:
243:
231:
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171:
157:
126:
104:
82:
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60:
316:. As of version 0.97.5, ClamAV builds and runs on
1880:"wbmclamav – The Webmin ClamAV Antivirus manager"
1565:Phishing, Scam and Malware signatures for ClamAV
604:Regarding previous versions that were meant for
272:able to detect many types of malware, including
1559:
1557:
1448:. AV-Test GmbH. 22 January 2008. Archived from
1474:. shadowserver.org. 2011-08-16. Archived from
1232:. U.S. Patent and Trademark Office. 2011-05-19
1024:List of free and open-source software packages
2110:
2072:An interview with ClamAV founder Tomasz Kojm
1916:
1914:
507:. The reason given is: based on old versions.
8:
1584:Add 4.000.000 signatures to ClamAV Antivirus
30:
1073:
1071:
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280:and has third party versions available for
2316:
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2095:
1991:. Downloadstatusbar.mozdev.org. 2005-08-19
1750:"My graphical user interface for "ClamAV""
1347:"Configuring On-Access Scanning in ClamAV"
859:using gtk2-perl; project is named for the
146:
112:
45:
36:
29:
1744:
1742:
530:application versions, ClamAV did support
1039:
1661:
1596:"ClamAV Unofficial Signatures Updater"
863:libraries that were used when it began
1724:from the original on 22 November 2021
1685:"Clam AntiVirus OpenVMS Project News"
1619:
1617:
1370:
1368:
1366:
1364:
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1360:
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1356:
1272:"Introduction – ClamAV Documentation"
7:
1964:"ClamWin Antivirus Glue for Firefox"
1011:Free and open-source software portal
376:responded in part by calling for a
344:in 2013 and now operates under its
1683:Chupahin, Alexey (December 2008).
1029:Software patents and free software
802:A port of ClamAV is available for
25:
1376:"Scanning – ClamAV Documentation"
1047:Micah Snyder (4 September 2024).
874:version was discontinued in 2009)
2604:Comparison of antivirus software
1966:. Firefox Addons. Archived from
1003:
826:Since ClamAV does not include a
494:
340:, which in turn was acquired by
1789:Mauroni, Dave (December 2008).
2046:"About ClamWin Free Antivirus"
1831:Mauroni, Dave (October 2008).
1710:"Alternate Versions of ClamAV"
1125:Celebrating 20 years of ClamAV
814:) with a native UI written in
571:. By default, it operates in "
27:Open-source antivirus software
1:
2650:Free software programmed in C
2486:Trend Micro Internet Security
2444:Microsoft Security Essentials
1897:ClamXav.com (November 2008).
870:(development of the original
2640:Cross-platform free software
2630:Antivirus software for Linux
2549:Dr.Web Mobile Security Suite
2476:Symantec Endpoint Protection
2439:Microsoft Defender Antivirus
1813:. manjeet.info. 4 April 2023
1472:"ShadowServer 180 Day Stats"
464:Office Open XML file formats
368:for filtering viruses on an
2579:Trend Micro Mobile Security
2534:Bitdefender Mobile Security
2529:Avira Free Android Security
2424:Kaspersky Internet Security
1924:. Softpedia.com. 2009-03-23
1922:"CS Anti-Virus description"
1101:"ClamAV Packages and Ports"
985:. ClamWin does not provide
794:uses ClamAV as its engine.
729:Eudora Internet Mail Server
456:(PE) files compressed with
2671:
2026:. Extensions.geckozone.org
1136:Sourcefire acquires ClamAV
1019:List of antivirus software
966:
1253:. Groklaw.net. 2011-06-13
1204:Paul, Ryan (2008-07-02).
503:This section needs to be
122:
100:
44:
35:
2559:F-Secure Mobile Security
2459:Norton Internet Security
2374:Comodo Internet Security
2044:ClamWin Pty Ltd (2009).
1811:"use clamav with nodejs"
1227:"Ex Parte Reexamination"
1184:Free Software Foundation
881:to manage Clam AntiVirus
828:graphical user interface
679:ClamAV is available for
476:Portable Document Format
382:Free Software Foundation
348:cybersecurity division.
2645:Free antivirus software
2344:Avira Internet Security
1321:"Latest Stable Release"
1161:. Linux.com. 2008-02-11
899:Tiger Cache Cleaner is
486:Real-time file scanning
374:free software community
276:. It was developed for
2655:Free security software
2574:McAfee Mobile Security
2569:G Data Mobile Security
2544:Comodo Mobile Security
1857:KlamAV F. (May 2006).
1791:"ClamTk Virus Scanner"
969:ClamWin Free Antivirus
964:
847:
446:Most mail file formats
88:; 22 years ago
55:from the command-line.
2414:Mac Internet Security
1884:wbmclamav.esaracco.fr
1180:"Boycott Trend Micro"
959:
839:
2554:ESET Mobile Security
2419:Kaspersky Anti-Virus
2010:"Download Statusbar"
1859:"KlamAV – Main Page"
1668:: CS1 maint: year (
1648:ClamXav.com (n.d.).
822:Graphical interfaces
724:have ported ClamAV.
643:Unofficial databases
563:In other words, the
532:real-time protection
2197:G Data CyberDefense
1878:Saracco, Emmanuel.
960:ClamWin running on
454:Portable Executable
270:antimalware toolkit
32:
2635:Cloud applications
2625:Antivirus software
2126:Antivirus software
1570:2015-09-10 at the
987:on-access scanning
965:
848:
554:On-Access Scanning
358:Barracuda Networks
226:Antivirus software
117:/ 4 September 2024
62:Original author(s)
2612:
2611:
2592:
2591:
1582:SecuriteInfo.com
1208:. Arstechnica.com
983:Microsoft Outlook
975:Microsoft Windows
929:Graugon AntiVirus
909:Microsoft Windows
747:is available for
606:Microsoft Windows
565:On-Access Scanner
524:
523:
324:as a server-side
318:Microsoft Windows
268:, cross-platform
264:(antivirus) is a
259:
258:
16:(Redirected from
2662:
2454:Norton AntiVirus
2434:McAfee VirusScan
2369:Comodo Antivirus
2317:
2119:
2112:
2105:
2096:
2091:
2090:
2088:Official website
2074:archived version
2061:
2060:
2058:
2057:
2048:. Archived from
2041:
2035:
2034:
2032:
2031:
2020:
2014:
2013:
2006:
2000:
1999:
1997:
1996:
1985:
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1945:. Firefox Addons
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1887:
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1835:. Archived from
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1687:. Archived from
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1457:
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1422:
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1413:
1412:
1403:. Archived from
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1390:
1389:
1387:
1386:
1372:
1351:
1350:
1342:
1336:
1335:
1333:
1332:
1323:. Archived from
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1298:. Archived from
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1103:. Archived from
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1087:
1086:
1075:
1060:
1059:
1057:
1055:
1044:
1013:
1008:
1007:
1006:
843:5.27 running on
769:
762:
758:
712:. Additionally,
573:notify-only mode
556:") – which uses
543:operating system
519:
516:
510:
498:
497:
490:
472:Rich Text Format
370:Internet gateway
255:
252:
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173:Operating system
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86:May 8, 2002
49:
40:
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21:
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2659:
2615:
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2608:
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2519:Avast Antivirus
2511:
2505:
2491:Vba32 AntiVirus
2334:Avast Antivirus
2321:
2308:
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2123:
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2085:
2082:
2069:
2067:Further reading
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2038:
2029:
2027:
2024:"Safe Download"
2022:
2021:
2017:
2008:
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1989:"Download Scan"
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1833:"ClamTk README"
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1600:sourceforge.net
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1572:Wayback Machine
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1452:on 15 July 2011
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1426:"Clam Sentinel"
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1380:docs.clamav.net
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1099:ClamAV (2007).
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833:These include:
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1399:Cyber Pillar.
1391:
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1345:Sola, Mickey.
1337:
1312:
1296:"About ClamAV"
1287:
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1080:"About ClamAV"
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991:Firefox add-on
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2052:on 2010-01-25
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1970:on 2012-12-20
1969:
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1899:"ClamXav.com"
1893:
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1839:on 2011-09-14
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1691:on 2011-10-06
1690:
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1651:
1650:"ClamXAV.com"
1644:
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1602:. 24 May 2009
1601:
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1563:Sanesecurity
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1478:on 2011-11-27
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1407:on 2014-08-19
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845:Lubuntu 19.04
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19:
2584:VirusBarrier
2496:VirusBarrier
2429:Malwarebytes
2299:VirusBlokAda
2249:Malwarebytes
2054:. Retrieved
2050:the original
2039:
2028:. Retrieved
2018:
2004:
1993:. Retrieved
1983:
1972:. Retrieved
1968:the original
1958:
1947:. Retrieved
1937:
1926:. Retrieved
1902:. Retrieved
1892:
1883:
1873:
1862:. Retrieved
1852:
1841:. Retrieved
1837:the original
1826:
1815:. Retrieved
1805:
1794:. Retrieved
1784:
1773:. Retrieved
1764:
1753:. Retrieved
1733:
1726:. Retrieved
1713:
1704:
1693:. Retrieved
1689:the original
1678:
1653:. Retrieved
1643:
1632:. Retrieved
1628:
1604:. Retrieved
1599:
1590:
1578:
1544:. Retrieved
1540:
1527:
1519:Splunk-Blogs
1518:
1509:
1501:Splunk-Blogs
1500:
1491:
1480:. Retrieved
1476:the original
1466:
1454:. Retrieved
1450:the original
1440:
1429:. Retrieved
1420:
1409:. Retrieved
1405:the original
1394:
1383:. Retrieved
1379:
1340:
1329:. Retrieved
1325:the original
1315:
1304:. Retrieved
1300:the original
1290:
1279:. Retrieved
1275:
1266:
1255:. Retrieved
1245:
1234:. Retrieved
1221:
1210:. Retrieved
1199:
1188:. Retrieved
1186:. 2008-02-11
1174:
1163:. Retrieved
1153:
1142:
1131:
1120:
1109:. Retrieved
1105:the original
1094:
1083:. Retrieved
1052:. Retrieved
1042:
972:
924:CS Antivirus
832:
825:
801:
777:
770:for update.
742:
733:SpamAssassin
726:
709:
706:macOS Server
704:
696:
689:
678:
664:
653:
646:
637:
626:
622:
616:In the 2008
615:
603:
598:
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584:
579:
577:
572:
568:
564:
562:
557:
553:
551:
525:
512:
504:
481:
391:
360:was sued by
355:
335:
322:mail servers
261:
260:
238:GPL-2.0-only
141:/Cisco-Talos
72:Developer(s)
2539:CM Security
2349:Bitdefender
2289:Trend Micro
2145:Check Point
2140:Bitdefender
1728:26 November
1606:2 September
1456:12 February
1054:4 September
866:KlamAV for
808:eComStation
806:(including
743:ClamAV for
590:clamd.conf,
545:supporting
362:Trend Micro
326:email virus
111:1.4.1
77:Cisco Talos
66:Tomasz Kojm
2619:Categories
2384:ESET NOD32
2274:Quick Heal
2056:2009-03-13
2030:2010-11-09
1995:2010-11-09
1974:2008-04-15
1949:2009-11-02
1928:2010-11-09
1904:2008-12-25
1864:2013-03-04
1843:2008-12-26
1817:2024-07-01
1796:2008-12-25
1775:2020-09-03
1755:2020-09-03
1714:clamav.net
1695:2008-12-25
1655:2009-01-24
1634:2017-07-15
1625:"About us"
1482:2011-12-16
1431:2014-06-19
1411:2014-09-01
1385:2024-05-02
1331:2010-08-21
1306:2008-12-25
1281:2024-03-09
1257:2015-10-04
1236:2015-10-04
1212:2012-02-14
1190:2008-02-12
1165:2008-02-12
1111:2008-12-31
1085:2008-12-25
1035:References
962:Windows XP
945:ClamAV-GUI
778:There are
675:Linux, BSD
578:Enabling "
474:(RTF) and
338:Sourcefire
328:scanner.
206:Tru64 UNIX
158:Written in
128:Repository
93:2002-05-08
2501:ZoneAlarm
2279:Qihoo 360
2259:Microsoft
2234:Kaspersky
2150:ZoneAlarm
2133:Companies
901:shareware
768:freshclam
749:DEC Alpha
670:Platforms
599:ClamOnAcc
540:Unix-like
526:In older
356:In 2008,
308:(Tru64),
2399:Fortinet
2389:F-Secure
2320:Desktop,
2313:Products
2244:Lavasoft
2239:Kingsoft
2187:Fortinet
2182:F-Secure
1722:Archived
1664:cite web
1568:Archived
1546:19 March
997:See also
757:clamscan
722:MacPorts
718:Homebrew
649:phishing
627:In 2022
536:Fanotify
534:via the
388:Features
2597:Related
2510:Mobile,
2409:Immunet
2359:ClamWin
2304:Webroot
2162:ClamWin
1629:ClamXAV
1541:uab.edu
952:ClamWin
919:ClamWin
914:Immunet
792:Immunet
774:Windows
753:Itanium
745:OpenVMS
739:OpenVMS
710:ClamXav
618:AV-TEST
505:updated
443:formats
429:Cabinet
378:boycott
332:History
310:Solaris
302:OpenVMS
274:viruses
251:.clamav
244:Website
233:License
210:Windows
202:OpenVMS
143:/clamav
91: (
2512:tablet
2471:Sophos
2404:G Data
2394:F-PROT
2379:Dr.Web
2354:ClamTk
2322:server
2284:Sophos
2254:McAfee
2229:Intego
2222:Norton
2172:Dr.Web
2167:Comodo
857:ClamTk
841:ClamTk
812:ArcaOS
766:, and
764:daemon
629:Splunk
478:(PDF).
439:, and
437:BinHex
398:Milter
394:daemon
372:. The
262:ClamAV
137:github
53:Trojan
31:ClamAV
18:Clamav
2466:Panda
2294:VIPRE
2269:Panda
2217:Avira
2207:Avast
2192:FRISK
2157:Cisco
1537:(PDF)
1230:(PDF)
887:macOS
852:Linux
788:Cisco
780:IA-32
761:clamd
701:macOS
692:Samba
681:Linux
569:Clamd
558:Clamd
528:Linux
421:Bzip2
346:Talos
342:Cisco
314:Haiku
298:macOS
294:Linux
290:HP-UX
214:Haiku
198:macOS
194:Linux
190:HP-UX
2177:ESET
1730:2021
1670:link
1608:2014
1548:2018
1458:2008
1056:2024
989:. A
981:and
941:OS/2
896:Ltd.
893:cron
816:REXX
810:and
804:OS/2
798:OS/2
782:and
751:and
720:and
714:Fink
683:and
547:FUSE
468:HTML
452:and
425:OLE2
417:Gzip
312:and
278:Unix
253:.net
221:Type
178:Unix
139:.com
2212:AVG
2202:Gen
872:KDE
868:TDE
790:'s
784:x64
685:BSD
549:).
458:UPX
450:ELF
441:SIS
433:CHM
413:Tar
409:RAR
405:ZIP
306:OSF
286:BSD
282:AIX
249:www
186:BSD
182:AIX
166:C++
2621::
1913:^
1882:.
1741:^
1732:.
1720:.
1716:.
1712:.
1666:}}
1662:{{
1627:.
1616:^
1598:.
1556:^
1539:.
1517:.
1499:.
1378:.
1355:^
1274:.
1182:.
1064:^
861:Tk
818:.
735:.
716:,
470:,
466:,
435:,
431:,
427:,
423:,
419:,
415:,
411:,
407:,
304:,
300:,
296:,
292:,
288:,
284:,
212:,
208:,
204:,
200:,
196:,
192:,
188:,
184:,
180:,
164:,
2118:e
2111:t
2104:v
2059:.
2033:.
2012:.
1998:.
1977:.
1952:.
1931:.
1907:.
1886:.
1867:.
1846:.
1820:.
1799:.
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