Characteristics
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Allows others to access the computer
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Steals information
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Downloads code from the internet
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Reduces system security
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Installs itself in the registry
Affected Operating Systems
Recovery Instructions:
Please follow the instructions for removing worms.
You will also need to edit the following registry entries, if present. 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 entries:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\
Microsoft Update = winsys.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices\
Microsoft Update = winsys.exe
and delete them if they exist.
Each user has a registry area named HKEY_USERS\[code number indicating user]\. For each user locate the entries:
HKCU\[code number]\Software\Microsoft\Windows\CurrentVersion\Run\
Microsoft Update = winsys.exe
HKCU\[code number]\Software\Microsoft\Windows\CurrentVersion\RunServices\
Microsoft Update = winsys.exe
and delete them if they exist.
Close the registry editor.
Check your administrator passwords and review network security.