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Viking.CC is a Trojan. A Trojan is a program that pretends to have a valid use, but in fact modifies the user's computer in malicious way. Trojans do not replicate or spread to other computers. Viking.CC is compressed using the executable packer and its file size is 364,548 bytes. This malware is written in Borland Delphi.

It uses the network connection:

  • Downloads file from as C:\WINDOWS\SYSTEM32\ioio.exe.
  • Connects to "" on port 80 (TCP).
  • Opens URL:

Viking.CC drops the following files on the hard drive:

  • C:\WINDOWS\SYSTEM32\ioio.exe (4096 bytes)
It creates the following mutex to ensure only one instance is running: irgendwaseinmaliges. It also is starting downloaded file - potential security problem.

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