W32/Rbot-BDV is a worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-BDV spreads:
- by attempting to use AOL Instant Messenger
- to other network computers by exploiting common buffer overflow
vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS
(MS03-049), PNP (MS05-039) and ASN.1 (MS04-007)
- by copying itself to network shares and Microsoft SQL servers protected by
weak passwords
W32/Rbot-BDV 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-BDV copies itself to <System>\chkdisk.exe.
The following registry entries are created to run chkdisk.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
AdobeReaderPro
chkdisk.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
AdobeReaderPro
chkdisk.exe
The following registry entry is set:
HKCU\Software\Microsoft\OLE
AdobeReaderPro
chkdisk.exe