Sophos

Troj/BagleDl-AH

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 23 November 2005 21:01:22 (GMT)
Last updated 25 November 2005 15:40:20 (GMT)
Detected by All Sophos products
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Action

Please follow the instructions for removing Trojans.

Windows NT/2000/XP/2003

In Windows NT/2000/XP/2003 you will also need to edit the following registry entries. The removal of these entries is optional in Windows 95/98/Me. Please read the warning about editing the registry.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\

and remove any reference to any file you deleted.

Each user has a registry area named HKEY_USERS\[code number indicating user]\. For each user locate the entry:

HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\Run\

and remove any reference to any file you deleted.

Close the registry editor.

More Information

Troj/BagleDl-AH is a Trojan for the Windows platform.

When first run, Troj/BagleDl-AH opens a graphics file named ntimage.gif with default image viewer.

Troj/BagleDl-AH attempts to download further malicious software from pre-specified URLs.

The Trojan opens a graphics file when first run

The Trojan opens a graphics file when first run. Troj/BagleDl-AH is a Trojan for the Windows platform.

When first run, Troj/BagleDl-AH opens a graphics file named ntimage.gif with default image viewer.

Troj/BagleDl-AH attempts to download further malicious software from pre-specified URLs.

When first run Troj/BagleDl-AH copies itself to <Windows system folder>\anti_troj.exe.

The following registry entries are created to run antiav_exe.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
anti_troj
<Windows system folder>\anti_troj.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
anti_troj
<Windows system folder>\anti_troj.exe

The Trojan opens a graphics file when first run

The Trojan opens a graphics file when first run.

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