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Microsoft Security Intelligence
Published Oct 11, 2007 | Updated Sep 15, 2017


Detected by Microsoft Defender Antivirus

Aliases: Trojan-Downloader.Java.OpenConnection.aa (Kaspersky) Exploit-ByteVerify (McAfee) Troj/ByteVeri-N (Sophos) Trojan.ByteVerify (Symantec) JAVA_BYTEVER.BJ (Trend Micro)


Exploit:Java/ByteVerify.C is a detection of malicious code that attempts to exploit a vulnerability in the Microsoft Virtual Machine (VM) in order to download and execute arbitrary files on a user's machine. This vulnerability is addressed by update MS03-011, released in 2003.

Scan with antivirus software

Exploit:Java/ByteVerify.C downloads other malicious software to your computer. To recover from this additional malicious software, you must run a full-system scan with an up-to-date antivirus product. Several companies provide antivirus software for this purpose. For more information, see
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