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Summary
Summary
Action- More Information
| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Protection available since | 7 September 2004 18:10:59 (GMT) |
| Detected by | All Sophos products |
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Action
- Summary
- Action
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More Information
W32/Sdbot-OS is a network worm and backdoor Trojan. The worm spreads by copying itself to network shares that have weak passwords.
W32/Sdbot-OS creates a copy of itself named UPDATE.EXE in the Windows system folder and adds the following registry entries to ensure that the copy is run each time the computer restarts:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Configuration Loader = update.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Configuration Loader = update.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
Configuration Loader = update.exe
The backdoor component of the worm attempts to connect to an IRC server and awaits commands from a remote attacker.
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