Sophos

Troj/Small-OY

Aliases
  • Trojan-Dropper.Win32.Small.oy
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 23 December 2004 15:32:07 (GMT)
Detected by All Sophos products
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Action

More Information

Troj/Small-OY is a Trojan for the Windows platform.

The Trojan attempts to download and execute files from a remote site. Filenames used by the Trojan components are runsvc32.exe, spoolsrv32.exe and srpcsrv32.dll. Downloaded files are saved to C:\r.exe

In order to run each time a user logs on, Troj/Small-OY creates the following registry entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce
Srv32 spool service
<path to Trojan>

HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce
Srv32 spool service
<path to Trojan>

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