Published Nov 23, 2008|Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: TA08-297A (other) CVE-2008-4250 (other) VU827267 (other) Win32/Conficker.worm.62976 (AhnLab) Trojan.Downloader.JLIW (BitDefender) Win32/Conficker.A (CA) Win32/Conficker.A (ESET) Trojan-Downloader.Win32.Agent.aqfw (Kaspersky) W32/Conficker.worm (McAfee) W32/Conficker.E (Norman) W32/Confick-A (Sophos) W32.Downadup (Symantec) Trojan.Disken.B (VirusBuster)


Worm:Win32/Conficker.A is a worm that infects other computers across a network by exploiting a vulnerability in the Windows Server service (SVCHOST.EXE). If the vulnerability is successfully exploited, it could allow remote code execution when file sharing is enabled.
Microsoft strongly recommends that users apply the update referred to in  Security Bulletin MS08-067 immediately.
Microsoft also recommends that users ensure that their network passwords are strong to prevent this worm from spreading via weak administrator passwords. More information is available here.
Microsoft also recommends that users apply an update that changes the AutoPlay functionality in Windows to prevent this worm from spreading via USB drives. More information is available in the Microsoft Knowledgebase Article KB971029.


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