Sophos

Troj/Flux-EF

Aliases
  • Win32/TrojanDownloader.Flux
  • Virus.Win32.AutoRun.aeb
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 January 2008 (4.25)
Protection available since 19 November 2007 18:43:00 (GMT)
Detected by All Sophos products

Action

More Information

Troj/Flux-EF is a Trojan for the Windows platform.

Troj/Flux-EF includes functionality to access the internet and communicate with a remote server via HTTP.

When first run Troj/Flux-EF copies itself to:

<Root>\auto.exe
<System>\e98417f4.exe

and creates the following files:

<Root>\autorun.inf
<System>\f271cd76.dll

The file autorun.if is detected as W32/SillyFD-G and the file f271cd76.dll is detected as Mal/Behav-027.

The file E98417F4.EXE is registered as a new service named "DE4623EE", with a display name of "DE4623EE". Registry entries are created under:

HKCU\SYSTEM\CurrentControlSet\Services\DE4623EE

The file E98417F4.EXE is registered as a new system driver service named "DE4623EE", with a display name of "DE4623EE" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\DE4623EE

The following registry entry is set:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL
CheckedValue
0

Registry entries are created under:

HKLM\SOFTWARE\Microsoft\Windows NT

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