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Microsoft Security Intelligence
Published Mar 08, 2011 | Updated Sep 15, 2017

Trojan:Win32/Fibebol.I

Detected by Microsoft Defender Antivirus

Aliases: Win-Trojan/Downloader.56167 (AhnLab) Trojan:Win32/Nullo.A (other) Win-Trojan/Ddosagent.24576.C (AhnLab)

Summary

Trojan:Win32/Fibebol.I is a destructive trojan that overwrites data files and sectors of all disk drives with null bytes.
To detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution. The following Microsoft products detect and remove this threat:
 
 
For more information on antivirus software, see http://www.microsoft.com/windows/antivirus-partners/.
 
Trojan:Win32/Fibebol.I may make lasting changes by writing null bytes to various files and sectors of the all drives. To return an affected computer to its previous state, files damaged by Trojan:Win32/Fibebol.I must be restored from backup.
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