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Summary
Summary
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| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Protection available since | 10 November 2005 03:04:14 (GMT) |
| Detected by | All Sophos products |
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Action
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More Information
W32/Sdbot-CNW is a network worm with backdoor Trojan functionality for the Windows platform.
The worm spreads through network shares protected by weak passwords, MS-SQL servers and through various operating system vulnerabilities.
W32/Sdbot-CNW connects to a predetermined IRC channel and awaits further commands from remote users. The backdoor component of W32/Sdbot-CNW can be instructed to perform the following functions:
scan networks for vulnerabilities
download/execute arbitrary files
start an ftp server
W32/Sdbot-CNW will drop the a file to the Windows system folder as msdirectx.sys. This file is detected as Troj/NtRootK-F.
When first run, W32/Sdbot-CNW copies itself to the Windows system folder as ntdat32.exe and creates the following registry entries in order to run each time a user logs on:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Compaq Service Drivers
"ntdat32.exe"
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Compaq Service Drivers
"ntdat32.exe"
HKLM\SOFTWARE\Microsoft\Ole
Compaq Service Drivers
"ntdat32.exe"
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
Compaq Service Drivers
"ntdat32.exe"
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Compaq Service Drivers
"ntdat32.exe"
HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
Compaq Service Drivers
"ntdat32.exe"
HKCU\SYSTEM\CurrentControlSet\Control\Lsa
Compaq Service Drivers
"ntdat32.exe"
HKCU\Software\Microsoft\Ole
Compaq Service Drivers
"ntdat32.exe"
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