W32/Rbot-ATL

Category: Viruses and Spyware
Type: Win32 worm
Prevalence: Small Number of Reports

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W32/Rbot-ATL is a worm and IRC backdoor Trojan for the Windows platform.

W32/Rbot-ATL spreads:

- to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812), WINS (MS04-045), Dameware (CAN-2003-1030), MSSQL (MS02-039) (CAN-2002-0649) and PNP (MS05-039)
- to other network computers running MSSQL servers protected by weak passwords
- by copying itself to network shares protected by weak passwords

W32/Rbot-ATL 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-ATL is a worm and IRC backdoor Trojan for the Windows platform.

W32/Rbot-ATL spreads:

- to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812), WINS (MS04-045), Dameware (CAN-2003-1030), MSSQL (MS02-039) (CAN-2002-0649) and PNP (MS05-039)
- to other network computers running MSSQL servers protected by weak passwords
- by copying itself to network shares protected by weak passwords

W32/Rbot-ATL 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.

When first run W32/Rbot-ATL copies itself to <System>\msnq3insller.exe.

The following registry entries are created to run msnq3insller.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
MS Unix Binary
msnq3insller.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
MS Unix Binary
msnq3insller.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
MS Unix Binary
msnq3insller.exe

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