W32/Rbot-AUM is a worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-AUM spreads to other network computers infected with: W32/MyDoom and W32/Bagle and to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812), WebDav (MS03-007), Veritas (CAN-2004-1172), PNP (MS05-039) and ASN.1 (MS04-007).
W32/Rbot-AUM 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-AUM copies itself to <System>\taskmnegr.exe.
The following registry entries are created to run taskmnegr.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft sddcE Contol
taskmnegr.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft sddcE Contol
taskmnegr.exe
Registry entries are set as follows:
HKCU\Software\Microsoft\OLE
Microsoft sddcE Contol
taskmnegr.exe
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1