[virusinfo] W32/Mytob-Q
- From: "Mike" <mikebike@xxxxxxxxx>
- To: virusinfo@xxxxxxxxxxxxx
- Date: Mon, 04 Apr 2005 18:27:36 -0700
From; Sophos Alert System:
Name: W32/Mytob-Q
Aliases: WORM_MYTOB.Q
Type: Win32 worm
Date: 5 April 2005
A virus identity (IDE) file which provides protection is
available now from the Sophos website, and will be incorporated
into the May 2005 (3.93) 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/Mytob-Q can be found at:
http://www.sophos.com/virusinfo/analyses/w32mytobq.html
W32/Mytob-Q is a mass-mailing worm and backdoor Trojan that targets users of
Internet Relay Chat programs.
When first run W32/Mytob-Q copies itself to the Windows system folder as
msnmsgs.exe and creates the following registry entries:
HKCU\System\CurrentControlSet\Control\Lsa
MSN MESSENGER
msnmsgs.exe
HKCU\Software\Microsoft\OLE
MSN MESSENGER
msnmsgs.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
MSN MESSENGER
msnmsgs.exe
HKLM\Software\Microsoft\Ole
MSN MESSENGER
msnmsgs.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
MSN MESSENGER
msnmsgs.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
MSN MESSENGER
msnmsgs.exe
HKLM\System\CurrentControlSet\Control\Lsa
MSN MESSENGER
msnmsgs.exe
W32/Mytob-Q copies itself to the root folder as:
funny pic.scr
photo album.scr
eminem vs 2pac.scr
and creates the helper file hellmsn.exe (detected by Sophos as W32/Mytob-H) in
the same location.
W32/Mytob-Q also appends the following to the HOSTS file to deny access to
security related websites:
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.microsoft.com
127.0.0.1 www.trendmicro.com
W32/Mytob-Q is capable of spreading through email and through various operating
system vulnerabilities such as LSASS (MS04-011). Email sent by W32/Mytob-Q has
the following properties:
Subject line:
Hello
thanks!
read it immediately
Message text:
This is a multi-part message in MIME format
Mail transaction failed. Partial message is available.
The message contains Unicode characters and has been sent as a binary
attachment.
The message cannot be represented in 7-bit ASCII encoding and has been sent as
a binary attachment.
The original message was included as an attachment.
I have received your document. The corrected document is attached.
The attached file consists of a base name followed by the extentions PIF, SCR,
EXE or ZIP. The worm may optionally create double extensions where the first
extension is DOC, TXT or HTM and the final extension is PIF, SCR, EXE or ZIP.
W32/Mytob-Q harvests email addresses from files on the infected computer and
from the Windows address book.
Download the IDE file from:
http://www.sophos.com/downloads/ide/mytob-q.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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