high
Summary
Summary
Action- More Information
| Detected by | All Sophos products |
|---|---|
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Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
Please read the instructions for removing worms.
Windows NT/2000/XP
In Windows NT/2000/XP you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me.
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\THD16 = C:\Windows\System\Thd16.exe
and delete it if it exists.
Close the registry editor.
More Information
W32/Hunch-C is an email worm which uses Microsoft Outlook to spread. It arrives in an email with the body text:
Tal como te prometí; te envío mi foto en el archivo adjunto...
The subject and attachment name are dependent on the original filename.
When the worm runs it copies itself to
C:\Windows\System\Thd16.exe,
C:\Windows\System\Msoffice.exe and
C:\Windows\System\<attachment name>
and adds the registry value
HKLM\Software\Microsoft\Windows\CurrentVersion\
Run\THD16 = C:\Windows\System\Thd16.exe
so the worm runs on startup.
The worm will delete up to five files which have one of the following
extensions:
XLS
DOC
WAV
DWG
MP3
BAK
CDX
BMP
HTM
HLP
CHM
JPG
CDR
MDB
DBF
ICO
The worm records the names of the files it deletes in
C:\Windows\System\ListWin.txt
Finally the worm displays a pornographic image.
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