Sophos

Troj/Pushu-A

Aliases
  • Rootkit.Win32.Agent.dp
  • Win32/Rootkit.Agent.NAZ
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 23 March 2007 01:59:04 (GMT)
Detected by All Sophos products
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Action

More Information

Troj/Pushu-A is a Trojan for the Windows platform.

When Troj/Pushu-A is installed the following file is created:

<Windows>\system32\drivers\runtime.sys

This file is also detected as Troj/Pushu-A, and is registered as a new system driver service named "Runtime". Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\Runtime

One of the following files is also created:

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

These files are also detected as Troj/Pushu-A, and may be registered as a new system driver service named "Restore". Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\Restore

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

Troj/Pushu-A also attempts to inject a file into iexplore.exe. This injected file is also detected as Troj/Pushu-A, and attempts to download from a remote location to some of the following locations:

<Windows>\system32\<random number>_exception.nls
<Temp>\ldrnt.bin
<Temp>\<random number>.exe

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