high
Summary
Summary
Action- More Information
| Protection available since | 22 October 2003 15:33:22 (GMT) |
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| Detected by | All Sophos products |
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Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
Check your administator passwords and review network security.
You will also need to edit the following registry entries, if they are 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\
Windows Explorer= LSAS.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Windows Explorer= LSAS.exe
and delete them if they exist.
Close the registry editor.
More Information
W32/Agobot-AA is a network worm which also allows unauthorised remote access to the computer via IRC channels.
W32/Agobot-AA is capable of spreading to computers on the local network protected by weak passwords.
The worm copies itself to the Windows System folder as Lsas.exe and creates the following registry entries, so that Lsas.exe is run automatically each time Windows is started:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Windows Explorer= LSAS.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Windows Explorer= LSAS.exe
Each time W32/Agobot-AA is run the worm attempts to connect to a remote IRC server and join a specific channel.
W32/Agobot-AA then runs continuously in the background, allowing a remote intruder to access and control the computer via IRC channels.
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