W32.Gaobot.RB is a variant of W32.HLLW.Gaobot that attempts to spread to network shares. It allows access to an infected computer through an IRC channel.
The worm uses multiple vulnerabilities to spread, including:
W32.Gaobot.RB is compressed with ASPack, IHMOWrap3, and UPX.
Virus definitions released on 3/17/2004 detect this threat as W32.HLLW.Gaobot.gen.
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