Sophos

Troj/Pushu-Gen

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Drops more malware
  • Installs itself in the registry
Included in our products from October 2008 (4.34)
Protection available since 28 July 2007 15:27:12 (GMT)
Last updated 19 August 2008 01:51:07 (GMT)
Detected by All Sophos products

Action

More Information

Troj/Pushu-Gen is a family of Trojans for the Windows platform.

When members of Troj/Pushu-Gen are installed one of the following files is usually created:

<Windows>\system32\drivers\ip6fw.sys
<Windows>\system32\drivers\netdtect.sys
<Windows>\system32\drivers\secdrv.sys

These files may be registered as a new system driver service named for example "Restore", "Ip6Fw", "NetDetect" or "Secdrv". Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\<service name>

When members of Troj/Pushu-Gen are installed the following file is also usually created:

<Windows>\system32\drivers\runtime.sys

runtime.sys is usually registered as a new system driver service named "Runtime". Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\Runtime

These system files provide stealthing for Troj/Pushu-Gen.

Members of Troj/Pushu-Gen may also attempt to download from a remote location by injecting code into Internet Explorer, sometimes downloading to the following location:

<Windows>\system32\<random number>_exception.nls

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