[virusinfo] Sophos Anti-Virus IDE alert: W32/Agobot-NA
- From: "Mike" <mikebike@xxxxxxxxx>
- To: virusinfo@xxxxxxxxxxxxx
- Date: Wed, 28 Apr 2004 16:55:48 -0700
From; Sophos Alert System:
Name: W32/Agobot-NA
Aliases: Backdoor.Agobot.gen, W32/Gaobot.worm.gen.j, W32.HLLW.Gaobot.gen
Type: Win32 worm
Date: 28 April 2004
A virus identity (IDE) file which provides protection is
available now from the Sophos website, and will be incorporated
into the June 2004 (3.82) release of Sophos Anti-Virus.
Customers using Enterprise Manager, PureMessage and any
of the Sophos small business solutions will be automatically
protected at their next scheduled update.
At the time of writing, Sophos has received just one report of
this worm from the wild.
Information about W32/Agobot-NA can be found at:
http://www.sophos.com/virusinfo/analyses/w32agobotna.html
Description
W32/Agobot-NA is a backdoor Trojan and worm which spreads to computers
protected by weak passwords.
When first run, W32/Agobot-NA copies itself to the Windows system folder as
wmiprvsw.exe and creates the following registry entries to run itself on
startup:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
System Updater Service = wmiprvsw.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
System Updater Service = wmiprvsw.exe
The worm runs continuously in the background providing backdoor access to
the computer.
W32/Agobot-NA attempts to terminate and disable various anti-virus and
security-related programs. The worm also modifies the HOSTS file located at
%WINDOWS%\System32\Drivers\etc\HOSTS,
mapping selected anti-virus websites to the loopback address 127.0.0.1 in an
attempt to prevent access to these sites. Typically the following mappings
will be appended to the HOSTS file:
127.0.0.1 www.symantec.com
127.0.0.1 securityresponse.symantec.com
127.0.0.1 symantec.com
127.0.0.1 www.sophos.com
127.0.0.1 sophos.com
127.0.0.1 www.mcafee.com
127.0.0.1 mcafee.com
127.0.0.1 liveupdate.symantecliveupdate.com
127.0.0.1 www.viruslist.com
127.0.0.1 viruslist.com
127.0.0.1 viruslist.com
127.0.0.1 f-secure.com
127.0.0.1 www.f-secure.com
127.0.0.1 kaspersky.com
127.0.0.1 www.avp.com
127.0.0.1 www.kaspersky.com
127.0.0.1 avp.com
127.0.0.1 www.networkassociates.com
127.0.0.1 networkassociates.com
127.0.0.1 www.ca.com
127.0.0.1 ca.com
127.0.0.1 mast.mcafee.com
127.0.0.1 my-etrust.com
127.0.0.1 www.my-etrust.com
127.0.0.1 download.mcafee.com
127.0.0.1 dispatch.mcafee.com
127.0.0.1 secure.nai.com
127.0.0.1 nai.com
127.0.0.1 www.nai.com
127.0.0.1 update.symantec.com
127.0.0.1 updates.symantec.com
127.0.0.1 us.mcafee.com
127.0.0.1 liveupdate.symantec.com
127.0.0.1 customer.symantec.com
127.0.0.1 rads.mcafee.com
127.0.0.1 trendmicro.com
127.0.0.1 www.trendmicro.com
W32/Agobot-NA will also attempt to retrieve data from the following
websites:
www.st.lib.keio.ac.jp
www.nocster.com
www.rit.edu
nitro.ucsc.edu
www.ryan1918.com
www.nifty.com
de-tschakka.no-ip.info
yahoo.co.jp
www.ryan1918.org
www.utwente.nl
de.yahoo.com
www.d1asia.com
www.belwue.de
www.burst.net
www.above.net
www.schlund.net
Recovery
Please follow the instructions for removing worms
Download the IDE file from:
http://www.sophos.com/downloads/ide/agobo-na.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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