[virusinfo] W32/Forbot-ER
- From: "Mike" <mikebike@xxxxxxxxx>
- To: virusinfo@xxxxxxxxxxxxx
- Date: Mon, 07 Mar 2005 08:49:13 -0800
From; Sophos Alert System:
Name: W32/Forbot-ER
Aliases: Backdoor.Win32.Wootbot.u
Type: Win32 worm
Date: 7 March 2005
A virus identity (IDE) file which provides protection is
available now from the Sophos website, and will be incorporated
into the April 2005 (3.92) release of Sophos Anti-Virus.
Customers using EM Library, PureMessage or any of our Sophos
small business solutions will be automatically protected at
their next scheduled update.
At the time of writing, Sophos has received a small number of
reports of this worm from the wild.
Information about W32/Forbot-ER can be found at:
http://www.sophos.com/virusinfo/analyses/w32forboter.html
W32/Forbot-ER is a network worm which attempts to spread via network shares.
The worm contains backdoor functions that allow unauthorised remote access to
the infected computer via IRC channels.
W32/Forbot-ER spreads to unpatched computers affected by the LSASS security
exploit (MS04-011).
When run the worm moves itself to the Windows System folder as instantmsgrs.exe
and creates the following registry entries so as to run itself on computer
logon:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
mousedrive.exe
instantmsgrs.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce
mousedrive.exe
instantmsgrs.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
mousedrive.exe
instantmsgrs.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
mousedrive.exe
instantmsgrs.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce
mousedrive.exe
instantmsgrs.exe
Once installed, W32/Forbot-ER will attempt to setup an HTTP and a SOCKS4 proxy
server, delete connections to network shares, participate in denial-of-service
(DoS) attacks, harvest email addresses and steal CD keys when instructed to do
so by a remote attacker.
This IDE file also includes detection for:
Troj/Prutec-B
http://www.sophos.com/virusinfo/analyses/trojprutecb.html
Troj/Prutec-C
http://www.sophos.com/virusinfo/analyses/trojprutecc.html
Troj/Agent-CJ
http://www.sophos.com/virusinfo/analyses/trojagentcj.html
W32/Aimdes-A
http://www.sophos.com/virusinfo/analyses/w32aimdesa.html
Download the IDE file from:
http://www.sophos.com/downloads/ide/forboter.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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