W32/Rbot-ATS is a worm for the Windows platform.
W32/Rbot-ATS may spread by copying itself to network shares with no passwords or by exploiting any of the following vulnerabilities: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049), WebDav (MS03-007), IIS5SSL (MS04-011), UPNP (MS01-059), Veritas (CAN-2004-1172), Dameware (CAN-2003-1030), PNP (MS05-039), ASN.1 (MS04-007).
When first run W32/Rbot-ATS copies itself to <System>\lsasser.exe.
The following registry entries are created to run lsasser.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
msupdater25
lsasser.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
msupdater25
lsasser.exe
Registry entries are set as follows:
HKCU\Software\Microsoft\OLE
msupdater25
lsasser.exe
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1