high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Protection available since | 9 September 2005 20:58:16 (GMT) |
| Last updated | 20 October 2005 04:55:51 (GMT) |
| Detected by | All Sophos products |
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Action
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More Information
W32/Rbot-ANK is a worm with backdoor functionality for the Windows platform.
W32/Rbot-ANK spreads to other network computers by exploiting common buffer overflow vulnerabilites, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812) and ASN.1 (MS04-007) and by copying itself to network shares protected by weak passwords.
The following patches for the operating system vulnerabilities exploited by W32/Rbot-ANK can be obtained from the Microsoft website:
MS04-011
MS04-012
MS03-049
MS04-007
W32/Rbot-ANK 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. W32/Rbot-ANK is a worm with backdoor functionality for the Windows platform.
W32/Rbot-ANK spreads to other network computers by exploiting common buffer overflow vulnerabilites, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812) and ASN.1 (MS04-007) and by copying itself to network shares protected by weak passwords.
The following patches for the operating system vulnerabilities exploited by W32/Rbot-ANK can be obtained from the Microsoft website:
MS04-011
MS04-012
MS03-049
MS04-007
W32/Rbot-ANK 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-ANK copies itself to <Windows system folder>\mswinsck.exe.
The following registry entries are created to run mswinsck.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Microsoft Winsock
mswinsck.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft Winsock
mswinsck.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Winsock
mswinsck.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Winsock
mswinsck.exe
Registry entries are set as follows:
HKCU\SYSTEM\CurrentControlSet\Control\Lsa
Microsoft Winsock
mswinsck.exe
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
Microsoft Winsock
mswinsck.exe
HKCU\Software\Microsoft\OLE
Microsoft Winsock
mswinsck.exe
HKLM\SOFTWARE\Microsoft\Ole
Microsoft Winsock
mswinsck.exe
W32/Rbot-ANK modifies Windows HOSTS file in attempt to prevent access to the following anti-virus and security related sites:
avp.com
ca.com
customer.symantec.com
dispatch.mcafee.com
download.mcafee.com
f-secure.com
kaspersky-labs.com
kaspersky.com
liveupdate.symantec.com
liveupdate.symantecliveupdate.com
mast.mcafee.com
mcafee.com
microsoft.com
my-etrust.com
nai.com
networkassociates.com
pandasoftware.com
rads.mcafee.com
secure.nai.com
securityresponse.symantec.com
sophos.com
symantec.com
trendmicro.com
update.symantec.com
updates.symantec.com
us.mcafee.com
viruslist.com
viruslist.com
virustotal.com
www.avp.com
www.ca.com
www.f-secure.com
www.grisoft.com
www.kaspersky.com
www.mcafee.com
www.microsoft.com
www.my-etrust.com
www.nai.com
www.networkassociates.com
www.pandasoftware.com
www.sophos.com
www.symantec.com
www.trendmicro.com
www.viruslist.com
www.virustotal.com
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