RUNTIME.SYS - Dangerous

What you should do about RUNTIME.SYS:

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Your PC is infected. The file called RUNTIME.SYS is considered unsafe and there may be other infections on your PC.


You should urgently check your PC and remove any malicious software including RUNTIME.SYS as soon as possible. The free version of Prevx CSI will scan your PC for millions of spyware and malware infections in less than 2 minutes. Don't take the risk, check your PC now by clicking the green button.

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What we know about RUNTIME.SYS:

The filename RUNTIME.SYS was first seen on May 25 2007 in The UNITED STATES. It has also been seen in the following geographical regions of the Prevx community:

  • The EUROPEAN UNION on Sep 21 2007
  • ITALY on Sep 21 2007
  • AUSTRALIA on Jun 20 2007
  • SPAIN on Jun 20 2007
The filename RUNTIME.SYS refers to many versions of an object.

The most common file size is 5,632 bytes. But the following file sizes have also been seen:

  • 5,504 bytes
  • 4,864 bytes

The filename is associated with the malware group Trojan.Downloader.Some files using the name RUNTIME.SYS are also associated with the malware groups:
  • TROJAN.AGENT.GEN
  • Win32.Rootkit.Gen
 These files have no vendor, product or version information specified in the file header.

RUNTIME.SYS has been seen to perform the following behavior(s):

  • Registers a Dynamic Link Library File

RUNTIME.SYS has been the subject of the following behavior(s):

  • Created as a new Background Service on the machine
  • Created as a process on disk
  • Deleted as a process from disk
  • Loaded and Executed as a System Driver File
  • Executed as a Process

RUNTIME.SYS can also use the following file names:

  • 70907675.DAT
  • 32082226.SYS
  • 14435316.SYS
  • 01487053.SYS
  • 34620158.EXE
  • 28953451.SYS
  • 59647027.SYS
  • 56957903.SYS
  • 85896481.SYS
  • 30653763.DAT
  • 60091294.SYS
  • RUNTIME.SY
  • 89772408.SYS
  • 61848983.SYS
  • 56747181.SYS
  • CSKAD.EXE
  • D41D8CD9FF7EE050
  • 00007577.SYS
  • 88548825.SYS