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Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Included in our products from | April 2006 (4.04) |
| Protection available since | 2 March 2006 08:55:51 (GMT) |
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
More Information
W32/Rbot-CKP is a network worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-CKP spreads to remote network shares protected by weak passwords and to computers vulnerable to common exploits, including RPC-DCOM (MS04-012), PNP (MS05-039) and ASN.1 (MS04-007). W32/Rbot-CKP is a network worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-CKP spreads to remote network shares protected by weak passwords and to computers vulnerable to common exploits, including RPC-DCOM (MS04-012), PNP (MS05-039) and ASN.1 (MS04-007).
W32/Rbot-CKP 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-CKP copies itself to <Windows>\ntvbm.exe.
The following registry entries are created to run ntvbm.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Kernel Fault Check
ntvbm.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Kernel Fault Check
ntvbm.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
Kernel Fault Check
ntvbm.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Kernel Fault Check
ntvbm.exe
W32/Rbot-CKP sets the following registry entries, disabling the automatic startup of other software:
HKLM\SYSTEM\CurrentControlSet\Services\wuauserv
Start
4
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess
Start
4
Note: disabling autostart for the SharedAccess service deactivates the Microsoft Internet Connection Firewall (ICF).
Registry entries are set as follows:
HKCU\SYSTEM\CurrentControlSet\Control\Lsa
Kernel Fault Check
ntvbm.exe
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
Kernel Fault Check
ntvbm.exe
HKCU\Software\Microsoft\OLE
Kernel Fault Check
ntvbm.exe
HKLM\SOFTWARE\Microsoft\Ole
Kernel Fault Check
ntvbm.exe
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1
W32/Rbot-CKP includes functionality to:
- start a SOCKS4 server
- take part in distributed denial of service (DDoS) attacks
- packet sniffing
- download code from the internet and run them
- start a remote shell (RLOGIN)
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