Win32/Fibebol [Threat Name] go to Threat

Win32/Fibebol.A [Threat Variant Name]

Category trojan
Size 11776 B
Aliases Trojan-Downloader.Win32.Tiny.cqe (Kaspersky)
  DDoS-KSig.trojan (McAfee)
  Trojan:Win32/Fibebol.A (Microsoft)
  Trojan.Koredos (Symantec)
Short description

Win32/Fibebol.A is a trojan which tries to download other malware from the Internet.


The trojan does not create any copies of itself.

The trojan creates the following files:

  • %temp%\­Deleteme.bat (283 B)
  • %temp%\­%variable%.bat (132 B)

A string with variable content is used instead of %variable% .

The files are then executed.

Information stealing

The trojan collects the following information:

  • user name
  • computer name

The trojan attempts to send gathered information to a remote machine.

Other information

The trojan acquires data and commands from a remote computer or the Internet.

The trojan contains a list of (10) URLs.

The trojan may attempt to download files from the Internet.

These are stored in the following locations:

  • %currentfolder%\­nt%variable%.dll

The file is then executed. A string with variable content is used instead of %variable% .

The trojan can open the following URLs:


The trojan may delete the following files:

  • %currentfolder%\­ShareBoxC.dat

The trojan removes itself from the computer.

Please enable Javascript to ensure correct displaying of this content and refresh this page.