W32/Rbot-AIU is a worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-AIU spreads:
- to other network computers infected with:
Troj/Kuang
Troj/Sub7
Troj/NetDevil
W32/MyDoom
W32/Bagle
Troj/Optix
- to other network computers by exploiting common buffer overflow vulnerabilites, including:
LSASS (MS04-011)
RPC-DCOM (MS04-012)
WKS (MS03-049) (CAN-2003-0812)
WebDav (MS03-007)
IIS5SSL (MS04-011) (CAN-2003-0719)
MSSQL (MS02-039) (CAN-2002-0649)
UPNP (MS01-059)
Veritas (CAN-2004-1172)
Dameware (CAN-2003-1030)
- by copying itself to network shares protected by weak passwords
W32/Rbot-AIU runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
W32/Rbot-AIU includes functionality to:
- steal confidential information
- carry out DDoS flooder attacks
- silently download, install and run new software
When first run W32/Rbot-AIU moves itself to <System>\sound.pif.
The following registry entries are created to run sound.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
SOUNDMAN Microsoft Help
soun.pif
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
SOUNDMAN Microsoft Help
soun.pif
W32/Rbot-AIU sets the following registy entries:
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1
The following patches for the operating system vulnerabilities exploited by W32/Rbot-AIU can be obtained from the Microsoft website:
<a href=
"http://www.microsoft.com/technet/security/bulletin/MS04-011.mspx"
target="_blank">MS04-011</a>
<a href=
"http://www.microsoft.com/technet/security/bulletin/MS04-012.mspx"
target="_blank">MS04-012</a>
<a href=
"http://www.microsoft.com/technet/security/bulletin/MS03-049.mspx"
target="_blank">MS03-049</a>
<a href=
"http://www.microsoft.com/technet/security/bulletin/MS03-007.mspx"
target="_blank">MS03-007</a>
<a href=
"http://www.microsoft.com/technet/security/bulletin/MS02-039.mspx"
target="_blank">MS02-039</a>
<a href=
"http://www.microsoft.com/technet/security/bulletin/MS01-059.mspx"
target="_blank">MS01-059</a>