MS Antivirus (malware)
rogue security software
MS Antivirus (also known as Spyware Protect 2009 and Antivirus XP 2008/Antivirus2009/SecurityTool/etc) is a scareware rogue anti-virus which purports to remove virus infections found on a computer running Microsoft Windows. It attempts to scam the user into purchasing a "full version" of the software. The company and the individuals behind Bakasoftware operated under other different 'company' names, including Innovagest2000, Innovative Marketing Ukraine, Pandora Software, LocusSoftware, etc. Variant E of the highly virulent computer worm Conficker distributed the "Spyware Protect 2009" version of the malware.
Names
Many clones of MS Antivirus that include slight variations have been distributed throughout the web. They are known as XP Antivirus, Vitae Antivirus, Windows Antivirus, Win Antivirus, Antivirus Action, Antivirus Pro 2009, 2010, 2017 or simply just Antivirus Pro, Antivirus 2007, 2008, 2009, 2010, 2011, and 360, AntiMalware GO, Internet Antivirus Plus, System Antivirus, Spyware Guard 2008 and 2009, Spyware Protect 2009, Winweb Security 2008, Antivirus 10, Total Antivirus 2020, Live Protection Suite, System Security, Malware Defender 2009, Ultimate Antivirus2008, Vista Antivirus, General Antivirus, AntiSpywareMaster, Antispyware 2008, XP AntiSpyware 2008, 2009 and 2010, Antivirus Vista 2010, Real Antivirus, WinPCDefender, Antivirus XP Pro, Anti-Virus-1, Antivirus Soft, Vista Antispyware 2012, Antispyware Soft, Antivirus System PRO, Antivirus Live, Vista Anti Malware 2010, Internet Security 2010, XP Antivirus Pro, Security Tool, VSCAN7, Total Security, PC Defender Plus, Disk Antivirus Professional, AVASoft Professional Antivirus, System Care Antivirus, and System Doctor 2014. Another MS Antivirus clone is named ANG Antivirus. This name is used to confuse the user of the software into thinking that it is the legitimate AVG Antivirus before downloading it.
Symptoms of infection
Each variant has its own way of downloading and installing itself onto a computer. MS Antivirus is made to look functional to fool a computer user into thinking that it is a real anti-virus system in order to convince the user to "purchase" it.
The public source identifies “MS Antivirus (malware)” as rogue security software. This brief keeps that definition visible, then builds a research path around Antivirus, malware and rogue.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Nov 8, 2025. The linked authority identifier is Q3137501. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2009, 2008, 2010 and 2017.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “MS Antivirus (malware)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.