[virusinfo] Sophos Anti-Virus IDE alert: W32/Agobot-PV

  • From: "Mike" <mikebike@xxxxxxxxx>
  • To: virusinfo@xxxxxxxxxxxxx
  • Date: Thu, 29 Apr 2004 07:50:30 -0700


From; Sophos Alert System:

Name: W32/Agobot-PV
Type: Win32 worm
Date: 29 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-PV can be found at:
http://www.sophos.com/virusinfo/analyses/w32agobotpv.html
Description 
W32/Agobot-PV is an IRC backdoor Trojan and network worm. 
W32/Agobot-PV is capable of spreading to computers on the local network
protected by weak passwords. 

When first run, W32/Agobot-PV moves itself to the Windows system folder as
pb.exe and creates the following registry entries to run itself on startup: 

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
WSAConfiguration = pb.exe 

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
WSAConfiguration = pb.exe 

Each time the Trojan is run it attempts to connect to a remote IRC server
and join a specific channel. 

The Trojan then runs continuously in the background, allowing a remote
intruder to access and control the computer via IRC channels. 

The Trojan attempts to terminate and disable various anti-virus and
security-
related programs and 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 
 
 
Recovery 
Please follow the instructions for removing worms 

This IDE file also includes detection for:

W32/Agobot-GW
http://www.sophos.com/virusinfo/analyses/w32agobotgw.html
W32/Agobot-OZ
http://www.sophos.com/virusinfo/analyses/w32agobotoz.html
W32/Agobot-NY
http://www.sophos.com/virusinfo/analyses/w32agobotny.html
W32/Agobot-QH
http://www.sophos.com/virusinfo/analyses/w32agobotqh.html
W32/Agobot-HB
http://www.sophos.com/virusinfo/analyses/w32agobothb.html
W32/Agobot-QG
http://www.sophos.com/virusinfo/analyses/w32agobotqg.html
W32/Agobot-RG
http://www.sophos.com/virusinfo/analyses/w32agobotrg.html
W32/Agobot-J
http://www.sophos.com/virusinfo/analyses/w32agobotj.html
W32/Agobot-K
http://www.sophos.com/virusinfo/analyses/w32agobotk.html

Download the IDE file from:
http://www.sophos.com/downloads/ide/agobotpv.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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