Sophos

W32/Agobot-HH

Aliases
  • Backdoor.Agobot.qo
Category
Type
What to do
Prevalence low high

Summary

 
Included in our products from June 2004 (3.82)
Protection available since 30 April 2004 16:13:36 (GMT)
Detected by All Sophos products

Action

More Information

W32/Agobot-HH is an IRC backdoor Trojan and network worm.

W32/Agobot-HH is capable of spreading to computers on the local network
protected by weak passwords.

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

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\UPNPService

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
UPNPService

W32/Agobot-HH runs continuously in the background providing backdoor access
to the computer.

W32/Agobot-HH 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

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