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Microsoft Security Intelligence
Published May 22, 2009 | Updated Sep 15, 2017

TrojanDownloader:Win32/Renos.FJ

Detected by Microsoft Defender Antivirus

Aliases: Backdoor.Win32.UltimateDefender.hpq (Kaspersky) Win32/Kryptik.PU (ESET)

Summary

TrojanDownloader:Win32/Renos.FJ is a trojan that connects to certain Web sites to download other malware. This may include other TrojanDownloader:Win32/Renos components, and rogue antivirus software such as Trojan:Win32/FakeSecSen or Trojan:Win32/FakeXPA.
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 the Microsoft Safety Scanner (http://go.microsoft.com/fwlink/?LinkId=212742). For more information, see http://www.microsoft.com/protect/computer/viruses/vista.mspx.
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