W32/Sdbot-AGH is a worm and IRC backdoor Trojan for the Windows platform.
W32/Sdbot-AGH spreads to other network computers infected with W32/MyDoom.
W32/Sdbot-AGH runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
When first run W32/Sdbot-AGH copies itself to <System>\msgfix32.exe.
The following registry entries are created to run msgfix32.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Configuration Loader
msgfix32.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Configuration Loader
msgfix32.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Configuration Loader
msgfix32.exe