Sophos

Troj/TCXMedi-C

Aliases
  • TrojanDownloader.Win32.Agent.dr
  • Downloader-PB
  • TROJ_AGENT.PB
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 29 November 2004 09:27:03 (GMT)
Last updated 28 February 2005 08:37:38 (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 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\Run\
winltmpv
<Trojan filename including path>

and delete it if it exists.

Close the registry editor.

More Information

Troj/TCXMedi-C is a Trojan related to pornographic material.

Troj/TCXMedi-C may download images from a pornographic website, storing them in the Windows folder under names like:
griverlcb.dll
griverlcb1.dll
griverlcb2.dll
griverlcs.dll
griverlcs1.dll
griverlcs2.dll

Troj/TCXMedi-C may copy itself to the Windows folder as WINLTMPV.EXE.

Troj/TCXMedi-C sets the following registry entry in order to run itself on system startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
winltmpv
<Trojan filename including path>

The Trojan also sets registry entries under HKCU\Software\Microsoft\Windows\CurrentVersion\Registration.

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