W32.HLLW.Gaobot.gen is a detection for a large family of worms, which propagate themselves using multiple vulnerabilities including:
Most variants are packed with a run-time packer, such as UPX.
The W32.HLLW.Gaobot.gen removal tool will remove many but not all the variants that are detected as W32.HLLW.Gaobot.gen.
Virus definitions, version 60227t (extended version 2/27/2004 rev. 20) and later, detect the threat known as Phatbot as W32.HLLW.Gaobot.gen.
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