The Sadmind worm was a self-propagating piece of malware.
It exploited vulnerabilities in both Sun Microsystems' Solaris (Security Bulletin 00191) and Microsoft's Internet Information Services (MS00-078), for which a patch had been made available seven months earlier. It was discovered on May 8, 2001.
The worm defaced web servers with a message against the United States government[1] and the anti-Chinese cracking group PoizonBOx.[2]