FRISK Software International


Summary of W32/Bagle.DX@mm
Discovered: 2 Feb 2006
Definition files: 2 Feb 2006
Risk Level: Medium
Distribution:Medium
 
Jump to:
Brief description
Technical description
Removal Instructions

Brief Description
W32/Bagle.DX is a mass mailing worm that has its own SMTP engine but also tries to spread via P2P networks. It tries to download and execute files from the Internet. It kills antivirus related processes and modifies the host file to make its detection and removal harder.


Technical Description
When first run the worm opens Notepad. Next it copies itself to %WINDIR%\system32\sysformat.exe, executes that file and terminates.

Adds the value:

"sysformat" = "%WINDIR%\system32\sysformat.exe"

to the key:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]

Modifies the key:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess]

to:

"Start" = 4

Tries to download the file q.jpg from a list of URLs and, if successful, saves it as:

%WINDIR%\re_file.exe

and executes it.

Terminates the following processes if they are found running:

mcagent.exe
mcvsshld.exe
mcshield.exe
mcvsescn.exe
mcvsrte.exe
DefWatch.exe
Rtvscan.exe
ccEvtMgr.exe
NISUM.EXE
ccPxySvc.exe
navapsvc.exe
NPROTECT.EXE
nopdb.exe
ccApp.exe
Avsynmgr.exe
VsStat.exe
Vshwin32.exe
alogserv.exe
RuLaunch.exe
Avconsol.exe
PavFires.exe
FIREWALL.EXE
ATUPDATER.EXE
LUALL.EXE
DRWEBUPW.EXE
AUTODOWN.EXE
NUPGRADE.EXE
OUTPOST.EXE
ICSSUPPNT.EXE
ICSUPP95.EXE
ESCANH95.EXE
AVXQUAR.EXE
ESCANHNT.EXE
ATUPDATER.EXE
AUPDATE.EXE
AUTOTRACE.EXE
AUTOUPDATE.EXE
AVXQUAR.EXE
AVWUPD32.EXE
AVPUPD.EXE
CFIAUDIT.EXE
UPDATE.EXE
NUPGRADE.EXE
MCUPDATE.EXE
pavsrv50.exe
AVENGINE.EXE
APVXDWIN.EXE
pavProxy.exe
navapw32.exe
navapsvc.exe
ccProxy.exe
navapsvc.exe
NPROTECT.EXE
SAVScan.exe
SNDSrvc.exe
symlcsvc.exe
LUCOMS~1.EXE
blackd.exe
bawindo.exe
FrameworkService.exe
VsTskMgr.exe
SHSTAT.EXE
UpdaterUI.exe

Harvests e-mail addresses from all files on the infected computer having one of the following extensions:

.wab
.txt
.msg
.htm
.shtm
.stm
.xml
.dbx
.mbx
.mdx
.eml
.nch
.mmf
.ods
.cfg
.asp
.php
.pl
.wsh
.adb
.tbb
.sht
.xls
.oft
.uin
.cgi
.mht
.dhtm
.jsp

Avoids sending itself to addresses containing any of the following substrings:

@microsoft
rating@
f-secur
news
update
anyone@
bugs@
contract@
feste
gold-certs@
help@
info@
nobody@
noone@
kasp
admin
icrosoft
support
ntivi
unix
bsd
linux
listserv
certific
sopho
@foo
@iana
free-av
@messagelab
winzip
google
winrar
samples
abuse
panda
cafee
spam
pgp
@avp.
noreply
local
root@
postmaster@

Overwrites the file %WINDIR%\system32\drivers\etc\hosts with the following:

127.0.0.1 localhost
127.0.0.1 ad.doubleclick.net
127.0.0.1 ad.fastclick.net
127.0.0.1 ads.fastclick.net
127.0.0.1 ar.atwola.com
127.0.0.1 atdmt.com
127.0.0.1 avp.ch
127.0.0.1 avp.com
127.0.0.1 avp.ru
127.0.0.1 awaps.net
127.0.0.1 banner.fastclick.net
127.0.0.1 banners.fastclick.net
127.0.0.1 ca.com
127.0.0.1 click.atdmt.com
127.0.0.1 clicks.atdmt.com
127.0.0.1 dispatch.mcafee.com
127.0.0.1 download.mcafee.com
127.0.0.1 download.microsoft.com
127.0.0.1 downloads.microsoft.com
127.0.0.1 engine.awaps.net
127.0.0.1 fastclick.net
127.0.0.1 f-secure.com
127.0.0.1 ftp.f-secure.com
127.0.0.1 ftp.sophos.com
127.0.0.1 go.microsoft.com
127.0.0.1 liveupdate.symantec.com
127.0.0.1 mast.mcafee.com
127.0.0.1 mcafee.com
127.0.0.1 media.fastclick.net
127.0.0.1 msdn.microsoft.com
127.0.0.1 my-etrust.com
127.0.0.1 nai.com
127.0.0.1 networkassociates.com
127.0.0.1 office.microsoft.com
127.0.0.1 phx.corporate-ir.net
127.0.0.1 secure.nai.com
127.0.0.1 securityresponse.symantec.com
127.0.0.1 service1.symantec.com
127.0.0.1 sophos.com
127.0.0.1 spd.atdmt.com
127.0.0.1 support.microsoft.com
127.0.0.1 symantec.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 vil.nai.com
127.0.0.1 viruslist.ru
127.0.0.1 windowsupdate.microsoft.com
127.0.0.1 www.avp.ch
127.0.0.1 www.avp.com
127.0.0.1 www.avp.ru
127.0.0.1 www.awaps.net
127.0.0.1 www.ca.com
127.0.0.1 www.fastclick.net
127.0.0.1 www.f-secure.com
127.0.0.1 www.kaspersky.ru
127.0.0.1 www.mcafee.com
127.0.0.1 www.my-etrust.com
127.0.0.1 www.nai.com
127.0.0.1 www.networkassociates.com
127.0.0.1 www.sophos.com
127.0.0.1 www.symantec.com
127.0.0.1 www.trendmicro.com
127.0.0.1 www.viruslist.ru
127.0.0.1 www3.ca.com

Copies itself as one of the following:

1.exe
2.exe
3.exe
4.exe
5.scr
6.exe
7.exe
8.exe
9.exe
10.exe
Ahead Nero 7.exe
Windown Longhorn Beta Leak.exe
Opera 8 New!.exe
XXX hardcore images.exe
WinAmp 6 New!.exe
WinAmp 5 Pro Keygen Crack Update.exe
Adobe Photoshop 9 full.exe
Matrix 3 Revolution English Subtitles.exe
ACDSee 9.exe

to all directories containing "shar" in their names.


Removal Instructions
For general removal instructions please click here.

Marteinn Žór Haršarson
 


Stay up to date with important developments via e-mail.
Stay up to date with life cycle policies for F-PROT Antivirus for Windows.
Virus news and information directly to your desktop.
Definitions of common antivirus terminology.
For further virus information, please try our partners' websites:

Authentium

perComp Verlag
(in German)
 

agoat@klaki.net argentina@f-prot.com argentina@frisk.is argentina@complex.is argentina@f-prot.is argentina@frisk-software.com argentina@f-prot.net argentina@f-prot.co.uk brazil@f-prot.com brazil@frisk.is brazil@complex.is brazil@f-prot.is brazil@frisk-software.com brazil@f-prot.net brazil@f-prot.co.uk malta@f-prot.com malta@frisk.is malta@complex.is malta@f-prot.is malta@frisk-software.com malta@f-prot.net malta@f-prot.co.uk a.bjani@f-prot.com a.bjani@frisk.is a.bjani@complex.is a.bjani@f-prot.is a.bjani@f-prot.co.uk a.bjani@frisk-software.com a.bjani@f-prot.net z.fifl@f-prot.com z.fifl@frisk.is z.fifl@complex.is z.fifl@f-prot.is z.fifl@f-prot.co.uk z.fifl@frisk-software.com z.fifl@f-prot.net strumpuri@complex.is strumpure@complex.is strumpuru@complex.is