W32.HLLW.Cassidy

The W32.HLLW.Cassidy worm attempts to spread using the KaZaA file-sharing network. Upon execution, the worm displays a message, titled "WinZip Self-Extractor."

W32.HLLW.Cassidy is written in the Microsoft C++ programming language and is compressed with XTPack. The size of this worm is about 200 KB after it is unpacked.

Protection

• Initial Rapid Release version February 13, 2003
• Latest Rapid Release version February 13, 2003
• Initial Daily Certified version February 13, 2003
• Latest Daily Certified version February 13, 2003
• Initial Weekly Certified release date February 19, 2003

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.