Summary

Summary
Action
More Information
| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Protection available since | 23 January 2005 15:59:02 (GMT) |
| Last updated | 4 July 2005 09:52:08 (GMT) |
| Detected by | All Sophos products |
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Action

Summary
Action
More Information
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. 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.
Locate the HKEY_LOCAL_MACHINE entry:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
taskmngr
<path to msnve.exe> <path to task.exe>
and delete it if it exists.
Close the registry editor.
More Information
Troj/Flood-EK is a Trojan which attempts to flood IRC channels.
Troj/Flood-EK creates a new folder within the Program files\Common files folder called "updates" with the following subfolders:
dat, log, plugin, preset, setup
Within the newly created folder Troj/Flood-EK drops several files, most of which are legitimate applications (eg PsKill and hiddenrun) or innocuous text files (eg config.in and language.in).
The Trojan drops and executes a file called task.exe. Task.exe is a legitimate chat application (mIRC v6.03) but is used by the Trojan along with certain INI files (eg mscn.dll) to attempt the flooding functionality.
Troj/Flood-EK also drops the BAT files task.bat which uses a legitimate utility called reg.exe to create a registry entry at the following location to run task.exe on logon or system restart using another legitimate utility called msnve.exe:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
taskmngr
<path to msnve.exe> <path to task.exe>
