[virusinfo] Re: Sophos Anti-Virus IDE alert: W32/Agobot-QX
- From: "Mike" <mikebike@xxxxxxxxx>
- To: virusinfo@xxxxxxxxxxxxx
- Date: Tue, 15 Mar 2005 12:15:30 -0800
From; System:
Name: W32/Agobot-QX
Aliases: Backdoor.Win32.Agobot.zv
Type: Win32 worm
Date: 15 March 2005
A virus identity (IDE) file which provides protection is
available now from the Sophos website, and will be incorporated
into the May 2005 (3.93) release of Sophos Anti-Virus.
Customers using EM Library, PureMessage or any of our Sophos
small business solutions will be automatically protected at
their next scheduled update.
At the time of writing, Sophos has received no reports from
users affected by this worm. However, we have issued this
advisory following enquiries to our support department from
customers.
Information about W32/Agobot-QX can be found at:
http://www.sophos.com/virusinfo/analyses/w32agobotqx.html
W32/Agobot-QX is a network worm with a backdoor Trojan component.
W32/Agobot-QX is capable of spreading to computers on the local network
protected by weak passwords after receiving the appropriate backdoor command.
W32/Agobot-QX can also spread by exploiting the following vulnerabilities:
DCOM (MS04-012)
NetBios
Microsoft SQL servers with weak passwords.
When first run, W32/Agobot-QX copies itself to the Windows system folder as
WCEMNGR.EXE and runs this copy of the worm. The copy will then attempt to
delete the original file. In order to run each time a user logs on,
W32/Agobot-QX will set the following registry entries:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
WCESMngr
WCEMNGR.EXE
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
WCESMngr
WCEMNGR.EXE
The worm runs continuously in the background providing backdoor access to the
computer.
W32/Agobot-QX will append the HOSTS file in the %SYSTEM%\drivers\etc folder.
The file contains a list of websites each bound to the IP loopback address.
This prevents access to a list of anti-virus and security related websites. For
example,
127.0.0.1 sophos.com
127.0.0.1 www.sophos.com
W32/Agobot-QX may alter the following registry entry in order to enable/disable
DCOM:
HKLM\SOFTWARE\Microsoft\Ole\EnableDCOM
W32/Agobot-QX is capable of adding and deleting the C$, D$, IPC$ and ADMIN$
network shares.
W32/Agobot-QX will attempt to terminate a number of anti-virus and security
related processes in addition to other viruses, worms and Trojans.
This IDE file also includes detection for:
W32/Rbot-XZ
http://www.sophos.com/virusinfo/analyses/w32rbotxz.html
Troj/Graber-E
http://www.sophos.com/virusinfo/analyses/trojgrabere.html
Troj/Istbar-AS
http://www.sophos.com/virusinfo/analyses/trojistbaras.html
Troj/Dloader-JG
http://www.sophos.com/virusinfo/analyses/trojdloaderjg.html
Troj/Dloader-JD
http://www.sophos.com/virusinfo/analyses/trojdloaderjd.html
W32/Rbot-XX
http://www.sophos.com/virusinfo/analyses/w32rbotxx.html
W32/Rbot-XY
http://www.sophos.com/virusinfo/analyses/w32rbotxy.html
Download the IDE file from:
http://www.sophos.com/downloads/ide/agobo-qx.ide
Download all the IDE files available for the current version of
Sophos Anti-Virus in a single compressed file. The file is
available in two formats:
Zip file:
http://www.sophos.com/downloads/ide/ides.zip
Self-extracting file:
http://www.sophos.com/downloads/ide/ides.exe
Read about how to use IDE files at
http://www.sophos.com/downloads/ide/using.html
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