Sophos

Troj/Digidor-A

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from September 2005 (3.97)
Protection available since 8 July 2005 21:29:42 (GMT)
Detected by All Sophos products

Action

More Information

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

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

When first run Troj/Digidor-A copies itself to:

<Windows folder>\svohost.exe
<Windows system folder>\HDDGMom.exe
<Windows system folder>\lsasa.exe

Troj/Digidor-A also copies itself to several files in the <Windows folder>\temp folder

The following registry entries are created to run svohost.exe and HDDGMom.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
ctfnom.exe
<Windows folder>\SVOHOST.exe

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

The following registry entry is set or modified, so that lsasa.exe is run when files with extensions of TXT are opened/launched:

HKCR\txtfile\shell\open\command
(default)
<Windows system folder>\lsasa.exe "%1"

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