Published Apr 20, 2005 | Updated Sep 15, 2017


High |Detected with Windows Defender Antivirus

Aliases: Backdoor.Sdbot (Symantec) W32/Sdbot.worm (McAfee) WORM_SDBOT (Trend Micro) Win32/SDBot (CA) SdBot (F-secure)


Microsoft security software detects and removes this family of threats.
This family of backdoor trojans can give a malicious hacker access and control of your PC. They connect to an internet relay chat (IRC) server to receive commands from the hacker. 
They can then spread to other PCs, launch denial of service (DoS) attacks, and collect information about your PC.

The following free Microsoft software detects and removes this threat:

Even if we've already detected and removed this particular threat, running a full scan might find other malware that is hiding on your PC.

Get more help

You can also visit our advanced troubleshooting page or search the Microsoft virus and malware community for more help.

If you’re using Windows XP, see our Windows XP end of support page.

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