[virusinfo] W32/Rbot-M
- From: "Mike" <mikebike@xxxxxxxxx>
- To: virusinfo@xxxxxxxxxxxxx
- Date: Fri, 21 May 2004 07:43:33 -0700
From; Sophos Alert System:
Name: W32/Rbot-M
Type: Win32 worm
Date: 20 May 2004
A virus identity (IDE) file which provides protection is
available now from the Sophos website, and will be incorporated
into the July 2004 (3.83) 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/Rbot-M can be found at:
http://www.sophos.com/virusinfo/analyses/w32rbotm.html
Description
W32/Rbot-M is a worm which attempts to spread to remote network shares.
W32/Rbot-M contains backdoor Trojan functionality, allowing unauthorised
remote access to the infected computer via IRC channels while running in the
background as a service process.
W32/Rbot-M spreads to network shares with weak passwords as a result of the
backdoor Trojan element receiving the appropriate command from a remote
user.
When W32/Rbot-M is run it copies itself to the Windows system folder with
the
filename wuam.exe and deletes the original copy if that filename was
wuam.exe.
In order to run automatically when Windows starts up W32/Rbot-M creates the
following registry entries:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Microsoft Update Time=wuam.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Microsoft Update Time=wuam.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
Microsoft Update Time=wuam.exe.
W32/Rbot-M attempts to contact the host babe.thekiller.biz.
Recovery
Please follow the instructions for removing worms.
Check your administrator passwords and review network security.
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\
Microsoft Update Time=wuam.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Microsoft Update Time=wuam.exe
and delete them if they exist.
Each user has a registry area named HKEY_USERS\[code number indicating
user]\. For each user locate the entry:
HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\Run\Microsoft Update Time=wuam.exe.
and delete it if it exists.
Close the registry editor and reboot your computer.
This IDE file also includes detection for:
W32/Agobot-IT
http://www.sophos.com/virusinfo/analyses/w32agobotit.html
AM97/Donei-A
http://www.sophos.com/virusinfo/analyses/am97doneia.html
W32/Sdbot-IO
http://www.sophos.com/virusinfo/analyses/w32sdbotio.html
Troj/Bridge-B
http://www.sophos.com/virusinfo/analyses/trojbridgeb.html
Troj/Small-GT
http://www.sophos.com/virusinfo/analyses/trojsmallgt.html
Troj/Subot-A
http://www.sophos.com/virusinfo/analyses/trojsubota.html
Troj/StartPa-AU
http://www.sophos.com/virusinfo/analyses/trojstartpaau.html
W32/Agobot-IW
http://www.sophos.com/virusinfo/analyses/w32agobotiw.html
Troj/Bckdr-ARR
http://www.sophos.com/virusinfo/analyses/trojbckdrarr.html
Download the IDE file from:
http://www.sophos.com/downloads/ide/rbot-m.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
*********** MIKE"S REPLY SEPARATOR ***********
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