high
Summary
Summary
Action- More Information
| Included in our products from | April 2004 (3.80) |
|---|---|
| Protection available since | 16 February 2004 15:57:08 (GMT) |
| Detected by | All Sophos products |
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\
System Root Configuration = C:\sysexec.exe
and delete it if it exists.
Close the registry editor.
More Information
Troj/Mirseed-A is an IRC Trojan that spams IRC channels with the message "[Info] Speed up your mIRC DCC Transfer by up to 75% with DCC Speed-Up Tool, get it now at ww.freewebs.com/mircupdate/mircspeedup.exe -Regards, Network Staff".
The EXE referenced in the URL is Troj/Mirseed-A.
Troj/Mirseed-A copies itself to C:\sysexec.exe and sets the following registry entry:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
System Root Configuration = C:\sysexec.exe
The Trojan also drops an IRC script into C:\memory.sys that it uses for spamming and logs onto certain predefined IRC channels.
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