W32.Randex.AAS

W32.Randex.AAS is a network-aware worm, which copies itself to, as the following, to the computers that have weak administrator passwords:

• \Admin$\system32\GT.exe
• \c$\winnt\system32\GT.exe
  

The worm receives instructions from an IRC channel on a predetermined IRC server. One such command will trigger the spreading across the previously mentioned network.

The worm is written in Microsoft Visual C++ and is packed with UPX.

Protection

• Initial Rapid Release version April 23, 2004
• Latest Rapid Release version July 27, 2009 revision 085
• Initial Daily Certified version April 23, 2004
• Latest Daily Certified version July 27, 2009 revision 073
• Initial Weekly Certified release date April 28, 2004

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

Threat Assessment

Wild

• Wild Level: Low
• Number of Infections: 0 - 49
• Number of Sites: 0 - 2
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Low

Distribution

• Distribution Level: Low