We're gradually updating threat actor names in our reports to align with the new weather-themed taxonomy. Learn about Microsoft threat actor names
TrojanDownloader:Java/OpenConnection.F
Detected by Microsoft Defender Antivirus
Aliases: Trojan.ByteVerify (Symantec) Exploit-ByteVerify trojan (McAfee) JAVA_BYTEVER.A (Trend Micro) Java/OpenConnection.f!Trojan (CA)
Summary
TrojanDownloader:Java/OpenConnection.F is a malicious Java applet that downloads and runs other malicious files from a remote Web site. The downloader often works with Java/Classloader and Java/Bytverify, which exploit the vulnerability addressed in Microsoft Security Update MS03-011.
Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as Microsoft Security Essentials, or the Microsoft Safety Scanner. For more information about using antivirus software, see http://www.microsoft.com/security/antivirus/av.aspx.
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