high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Included in our products from | June 2005 (3.94) |
| Protection available since | 27 April 2005 13:00:45 (GMT) |
| Last updated | 29 April 2005 06:56:59 (GMT) |
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
Replace the Hosts file from a backup or edit it in Notepad to remove the changes that the worm has made.
You will also need to edit the following registry entries, if they are present. Please read the warning about editing the registry.
At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.
Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.
Locate the HKEY_LOCAL_MACHINE entries:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
and remove any reference to any file you deleted.
Close the registry editor.
More Information
W32/Agobot-RT is an IRC backdoor Trojan and network worm which establishes an IRC channel to a remote server in order to grant an intruder access to the compromised machine.
W32/Agobot-RT will move itself into the Windows System32 folder under the filename PRCVIEW.EXE and may create the following registry entries so that it can execute automatically on system restart:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Task Manager = prcview.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Task Manager = prcview.exe
W32/Agobot-RT may attempt to terminate anti-virus and other security-related processes.
A text file named HOSTS in C:\<Windows System32>\drivers\etc\ may be created or modified with a list of anti-virus and other security-related websites, each bound to the IP loopback address of 127.0.0.1 which would effectively prevent access to these sites.
For example:
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-RT may share / delete the admin$, ipc$ etc. drives.
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