W32/Dopbot-A is a network worm with backdoor functionality for the Windows platform.
W32/Dopbot-A spreads to remote network shares, computers already compromised by the Optix Trojan and computers vulnerable to the LSASS exploit - for more information see:
http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx
W32/Dopbot-A allows unauthorised remote access to the infected computer via IRC channels. Remote attackers can command W32/Dopbot-A to perform actions including:
download and run arbitrary files
scan other computers for vulnerabilities
flood other computers over the network
terminate processes (including firewall and Anti-virus processes)
W32/Dopbot-A also hardens the computer against further attacks by downloading a patch for the LSASS exploit from the Microsoft website and changing security settings.
W32/Dopbot-A is a network worm with backdoor functionality for the Windows platform.
W32/Dopbot-A spreads to remote network shares, computers already compromised by the Optix Trojan and computers vulnerable to the LSASS exploit - for more information see:
http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx
W32/Dopbot-A allows unauthorised remote access to the infected computer via IRC channels. Remote attackers can command W32/Dopbot-A to perform actions including:
download and run arbitrary files
scan other computers for vulnerabilities
flood other computers over the network
terminate processes (including firewall and Anti-virus processes)
When first run, W32/Dopbot-A copies itself to the Windows system folder as "rund1132.exe" and creates the following registry entries in order to run automatically on computer startup:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
rund1132
<Windows system folder>\rund1132.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
rund1132
<Windows system folder>\rund1132.exe
W32/Dopbot-A also hardens the computer against further attacks by downloading a patch for the LSASS exploit from the Microsoft website and setting the following registry entries if they are not already set:
HKLM\SOFTWARE\Microsoft\Ole\
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa\
restrictanonymous
2