Characteristics
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Allows others to access the computer
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Deletes files off 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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Records keystrokes
How it spreads
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\
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
and remove any reference to any file you deleted.
Each user has a registry area named HKEY_USERS\[code number indicating user]\. For each user locate the entry:
HKCU\[code number]\Software\Microsoft\Windows\CurrentVersion\Run\
and remove any reference to any file you deleted.
Close the registry editor.
Check your administrator passwords and review network security.
The HKLM\SYSTEM\CurrentControlSet\Control\Lsa\restrictanonymous = "1" setting does not allow enumeration of SAM accounts and names. The default is "0". It can be changed in Local Security Policy. See Microsoft article 246261 for details.