Sophos

W32/AutoRun-HR

Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Removable storage devices
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 19 August 2008 04:17:08 (GMT)
Detected by All Sophos products
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Action

More Information

W32/AutoRun-HR is a Trojan for the Windows platform.

W32/AutoRun-HR includes functionality to access the internet and communicate with a remote server via HTTP.

When first run W32/AutoRun-HR copies itself to:

<Windows>\hinhem.scr
<Windows>\scvhost.exe
<System>\blastclnnn.exe
<System>\scvhost.exe

and creates the following files:

<System>\autorun.ini
<System>\setting.ini

The file autorun.ini is detected as Mal/AutoInf-A.

The following registry entry is created to run scvhost.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Yahoo Messengger
<System>\scvhost.exe

The following registry entry is changed to run scvhost.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Shell
Explorer.exe scvhost.exe

The following registry entries are set, disabling system software:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableTaskMgr
1

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
1

The following registry entry is set:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NofolderOptions
1

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