Code Red II
|Type||Server Jamming Worm|
Code Red II is a computer worm similar to the Code Red worm. Released two weeks after Code Red on August 4, 2001, although similar in behavior to the original, analysis showed it to be a new worm instead of a variant. Different from the first the second has no attacking function, but a backdoor to allow attacks. The worm was designed to exploit a security hole in the indexing software included as part of Microsoft's Internet Information Server (IIS) web server software.
A typical signature of the Code Red II worm would appear in a web server log as:
GET /default.ida?XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX %u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801 %u9090%u6858%ucbd3%u7801%u9090%u9090%u8190%u00c3 %u0003%u8b00%u531b%u53ff%u0078%u0000%u00=a HTTP/1.0
When the original worm tried to infect other computers at random, Code Red II tried to infect machines on the same subnet as the infected machine.
- Microsoft (2001-06-18). "Microsoft Security Bulletin MS01-033". Microsoft TechNet. Retrieved 2007-02-08.
- Joris Evers (2001-08-09). "Microsoft Sees Red: Worm Infects Its Own Servers". IDG News Service. Retrieved 2007-02-08.