[virusinfo] W32/Rbot-T

  • From: "Mike" <mikebike@xxxxxxxxx>
  • To: virusinfo@xxxxxxxxxxxxx
  • Date: Wed, 26 May 2004 08:53:11 -0700


From; Sophos Alert System:

Name: W32/Rbot-T
Type: Win32 worm
Date: 26 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-T can be found at:
http://www.sophos.com/virusinfo/analyses/w32rbott.html
Description 
W32/Rbot-T is a worm which attempts to spread to remote network shares. It
also 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-T spreads to network shares with weak passwords as a result of the
backdoor Trojan element receiving the appropriate command from a remote
user. 

W32/Rbot-T copies itself to the Windows system folder as NAVSCAN64.EXE
and creates entries at the following locations in the registry so as to run
itself
on system startup: 

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
HKCU\Software\Microsoft\Windows\CurrentVersion\Run 

W32/Rbot-T may set the following registry entries: 

HKLM\SOFTWARE\Microsoft\Ole\EnableDCOM = "N"
HKLM\SYSTEM\CurrentControlSet\Control\Lsa\restrictanonymous = "1" 

W32/Rbot-T may try to delete the C$, D$, E$, IPC$ and ADMIN$ network shares
on the host computer. 

W32/Rbot-T may also try to log keystrokes and window text to a file called
DEBUG.TXT in the Windows system folder. 
 
 
Recovery 
Please follow the instructions for removing worms. 

This IDE file also includes detection for:

Dial/Invis-B
http://www.sophos.com/virusinfo/analyses/dialinvisb.html
Troj/PeepVie-D
http://www.sophos.com/virusinfo/analyses/trojpeepvied.html
W32/Bobax-B
http://www.sophos.com/virusinfo/analyses/w32bobaxb.html
W32/MyDoom-K
http://www.sophos.com/virusinfo/analyses/w32mydoomk.html
W32/Scanbot-A
http://www.sophos.com/virusinfo/analyses/w32scanbota.html
Troj/Small-V
http://www.sophos.com/virusinfo/analyses/trojsmallv.html
W32/Protoride-D
http://www.sophos.com/virusinfo/analyses/w32protorided.html
W32/Sdbot-OE
http://www.sophos.com/virusinfo/analyses/w32sdbotoe.html
W32/Sdbot-OF
http://www.sophos.com/virusinfo/analyses/w32sdbotof.html

Download the IDE file from:
http://www.sophos.com/downloads/ide/rbot-t.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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  • » [virusinfo] W32/Rbot-T