Sophos

Sophos blogs

Troj/Dloader-JP

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Drops more malware
  • Installs itself in the registry
Protection available since 18 March 2005 09:12:00 (GMT)
Detected by All Sophos products
  • Free virus, spyware, and adware scan
  • Test your existing anti-virus protection
  • Find threats your anti-virus missed

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 entry for each user who ran the virus. The removal of this entry 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.

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\RunOnce\

and remove any reference to any file you deleted.

Close the registry editor.

More Information

Troj/Dloader-JP is a downloader for the Windows platform.

Troj/Dloader-JP will attempt to download and execute files from http://xawm.biz. The Trojan will also drop the following files:

<Windows system folder>\spoolsrv32.exe (detected as Troj/Dloader-JP)
<Windows system folder>\ssrpcsrv32.dll
<Windows system folder>\stxfdb32.dll
<Windows folder>\Web\desktop.html (harmless adware file)

Troj/Dloader-JP will create the following registry entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce
Srv32 spool service
"<Windows system folder>\spoolsrv32.exe"

HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce
Srv32 spool service
"<Windows system folder>\spoolsrv32.exe"

RSS|Atom
Get reports about the latest virus and spyware threats delivered to your computer