Sophos

W32/Bagle-BW

Aliases
  • CME-477
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Email messages
  • Peer-to-peer
Affected operating systems Windows
Included in our products from September 2005 (3.97)
Protection available since 4 August 2005 17:36:13 (GMT)
Detected by All Sophos products

Action

More Information

W32/Bagle-BW is a worm and backdoor for the Windows platform.

W32/Bagle-BW spreads via file sharing on P2P networks and via email.

Emails sent by the worm have the following characteristics:

Subject line: randomly chosen from a list of 23 e.g.

Re: Msg reply
Re: Hello
Re:
Re: Yahoo!
Re: Thank you!

Message text: randomly chosen from a list of 16 e.g.

Read the attach.
Your file is attached.
Try this.
More info is in attach
See attach.

Attached file: one of

Information.exe
Details.exe
text_document.exe
Updates.exe
Readme.exe
Document.exe
Info.exe
Details.exe
MoreInfo.exe
Message.exe

W32/Bagle-BW will not send to email addresses containing strings relating to computer security.

W32/Bagle-BW runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer. W32/Bagle-BW is a worm and backdoor for the Windows platform.

W32/Bagle-BW spreads via file sharing on P2P networks and via email.

Emails sent by the worm have the following characteristics:

From address: forged

Subject line: one of

Re: Msg reply
Re: Hello
Re:
Re:
Re: Yahoo!
Re: Thank you!
Re: Thanks :)
RE: Text message
Re: Document
Incoming message
Re: Incoming Message
RE: Incoming Msg
RE: Message Notify
Notification
Changes..
Update
Fax Message
Protected message
RE: Protected message
Forum notify
Site changes
Re: Hi
Encrypted document

Message text: one of

Read the attach.
Your file is attached.
Try this.
More info is in attach
See attach.
Please, have a look at the attached file.
Your document is attached.
Please, read the document.
Attach tells everything.
Attached file tells everything.
Check attached file for details.
Check attached file.
Pay attention at the attach.
See the attached file for details.
Message is in attach
Here is the file.

Attached file: one of

Information.exe
Details.exe
text_document.exe
Updates.exe
Readme.exe
Document.exe
Info.exe
Details.exe
MoreInfo.exe
Message.exe

W32/Bagle-BW will not send to email addresses containing any of the following strings:

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

The worm searches for email addresses in files with the following extensions:
ADB, ASP, CFG, CGI, DBX, DHTM, EML, HTM, HTML, JSP, MBX, MDX, MHT, MMF, MSG, NCH, ODS, OFT, PHP, SHT, SHTM, STM, TBB, TXT, UIN, WAB, WSH, XLS, XML

W32/Bagle-BW runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer.

W32/Bagle-BW includes functionality to download, install and run new software.

When first run W32/Bagle-BW copies itself to winhost.exe in the Windows system folder.

The following registry entry is created to run winhost.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
winhost.exe
<Windows system folder>\winhost.exe

Registry entries are created under:

HKCU\Software\Timeout\

W32/Bagle-BW copies itself to the shared folders of common P2P applications with the following filenames:

Ahead Nero 7.exe
hardcore arhive.exe
important update.exe
important.exe
install.exe
Kaspersky Antivirus 5.0
message.msg .exe
Microsoft Office 2003 Crack, Working!.exe
Microsoft Office XP working Crack, Keygen.exe
Microsoft Windows XP, WinXP Crack, working Keygen.exe
New document.doc .exe
New patch.exe
patch.exe
Porno pics arhive, xxx.exe
Porno Screensaver.scr
Porno, sex, oral, anal cool, awesome!!.exe
Serials.txt .exe
setup.exe
text.txt .exe
update.exe
WinAmp 6 New!.exe
Windown Longhorn Beta Leak.exe
Windows Sourcecode update.doc .exe
XXX hardcore images.exe

The worm terminates the following applications:

AGENTSVR.EXE
ANTI-TROJAN.EXE
ANTIVIRUS.EXE
ANTS.EXE
APIMONITOR.EXE
APLICA32.EXE
APVXDWIN.EXE
ATCON.EXE
ATGUARD.EXE
ATRO55EN.EXE
ATUPDATER.EXE
ATWATCH.EXE
AUPDATE.EXE
AUTODOWN.EXE
AUTOTRACE.EXE
AUTOUPDATE.EXE
AVCONSOL.EXE
AVGSERV9.EXE
AVLTMAIN.EXE
AVprotect9x.exe
AVPUPD.EXE
AVSYNMGR.EXE
AVWUPD32.EXE
AVXQUAR.EXE
BD_PROFESSIONAL.EXE
BIDEF.EXE
BIDSERVER.EXE
BIPCP.EXE
BIPCPEVALSETUP.EXE
BISP.EXE
BLACKD.EXE
BLACKICE.EXE
BOOTWARN.EXE
BORG2.EXE
BS120.EXE
ccApp.exe
ccEvtMgr.exe
CDP.EXE
CFGWIZ.EXE
CFIADMIN.EXE
CFIAUDIT.EXE
CFINET.EXE
CFINET32.EXE
CLEAN.EXE
CLEANER.EXE
CLEANER3.EXE
CLEANPC.EXE
CMGRDIAN.EXE
CMON016.EXE
CPD.EXE
CPF9X206.EXE
CPFNT206.EXE
CV.EXE
CWNB181.EXE
CWNTDWMO.EXE
DEFWATCH.EXE
DEPUTY.EXE
DPF.EXE
DPFSETUP.EXE
DRWATSON.EXE
DRWEBUPW.EXE
ENT.EXE
ESCANH95.EXE
ESCANHNT.EXE
ESCANV95.EXE
EXANTIVIRUS-CNET.EXE
FAST.EXE
FIREWALL.EXE
FLOWPROTECTOR.EXE
FP-WIN_TRIAL.EXE
FRW.EXE
FSAV.EXE
FSAV530STBYB.EXE
FSAV530WTBYB.EXE
FSAV95.EXE
GBMENU.EXE
GBPOLL.EXE
GUARD.EXE
GUARDDOG.EXE
HACKTRACERSETUP.EXE
HTLOG.EXE
HWPE.EXE
IAMAPP.EXE
IAMSERV.EXE
ICLOAD95.EXE
ICLOADNT.EXE
ICMON.EXE
ICSSUPPNT.EXE
ICSUPP95.EXE
ICSUPPNT.EXE
IFW2000.EXE
IPARMOR.EXE
IRIS.EXE
JAMMER.EXE
KAVLITE40ENG.EXE
KAVPERS40ENG.EXE
KERIO-PF-213-EN-WIN.EXE
KERIO-WRL-421-EN-WIN.EXE
KERIO-WRP-421-EN-WIN.EXE
KILLPROCESSSETUP161.EXE
LDPRO.EXE
LOCALNET.EXE
LOCKDOWN.EXE
LOCKDOWN2000.EXE
LSETUP.EXE
LUALL.EXE
LUCOMSERVER.EXE
LUINIT.EXE
MCAGENT.EXE
MCUPDATE.EXE
MFW2EN.EXE
MFWENG3.02D30.EXE
MGUI.EXE
MINILOG.EXE
MOOLIVE.EXE
MRFLUX.EXE
MSCONFIG.EXE
MSINFO32.EXE
MSSMMC32.EXE
MU0311AD.EXE
NAV80TRY.EXE
navapsvc.exe
NAVAPW32.EXE
NAVDX.EXE
NavShExt.dll
NAVSTUB.EXE
NAVW32.EXE
NC2000.EXE
NCINST4.EXE
NDD32.EXE
NEOMONITOR.EXE
NETARMOR.EXE
NETINFO.EXE
NETMON.EXE
NETSCANPRO.EXE
NETSPYHUNTER-1.2.EXE
NETSTAT.EXE
NISSERV.EXE
NISUM.EXE
NMAIN.EXE
NORTON_INTERNET_SECU_3.0_407.EXE
NPF40_TW_98_NT_ME_2K.EXE
NPFMESSENGER.EXE
NPROTECT.EXE
NSCHED32.EXE
NTVDM.EXE
NUPGRADE.EXE
NVARCH16.EXE
NWINST4.EXE
NWTOOL16.EXE
OSTRONET.EXE
OUTPOST.EXE
OUTPOSTINSTALL.EXE
OUTPOSTPROINSTALL.EXE
PADMIN.EXE
PANIXK.EXE
PAVPROXY.EXE
PCC2002S902.EXE
PCC2K_76_1436.EXE
PCCIOMON.EXE
PCDSETUP.EXE
PCFWALLICON.EXE
PCIP10117_0.EXE
PDSETUP.EXE
PERISCOPE.EXE
PERSFW.EXE
PF2.EXE
PFWADMIN.EXE
PINGSCAN.EXE
PLATIN.EXE
POPROXY.EXE
POPSCAN.EXE
PORTDETECTIVE.EXE
PPINUPDT.EXE
PPTBC.EXE
PPVSTOP.EXE
PROCEXPLORERV1.0.EXE
PROPORT.EXE
PROTECTX.EXE
PSPF.EXE
PURGE.EXE
PVIEW95.EXE
QCONSOLE.EXE
QSERVER.EXE
RAV8WIN32ENG.EXE
REGEDIT.EXE
REGEDT32.EXE
RESCUE.EXE
RESCUE32.EXE
RRGUARD.EXE
RSHELL.EXE
RTVSCN95.EXE
RULAUNCH.EXE
SAFEWEB.EXE
SAVSCAN.EXE
SBSERV.EXE
SD.EXE
SETUP_FLOWPROTECTOR_US.EXE
SETUPVAMEEVAL.EXE
SFC.EXE
SGSSFW32.EXE
SH.EXE
SHELLSPYINSTALL.EXE
SHN.EXE
SMC.EXE
SOFI.EXE
SPF.EXE
SPHINX.EXE
SPYXX.EXE
SS3EDIT.EXE
ST2.EXE
SUPFTRL.EXE
SUPPORTER5.EXE
SYMPROXYSVC.EXE
SymWSC.exe
SYSEDIT.EXE
TASKMON.EXE
TAUMON.EXE
TAUSCAN.EXE
TC.EXE
TCA.EXE
TCM.EXE
TDS-3.EXE
TDS2-98.EXE
TDS2-NT.EXE
TFAK5.EXE
TGBOB.EXE
TITANIN.EXE
TITANINXP.EXE
TRACERT.EXE
TRJSCAN.EXE
TRJSETUP.EXE
TROJANTRAP3.EXE
UNDOBOOT.EXE
UPDATE.EXE
VBCMSERV.EXE
VBCONS.EXE
VBUST.EXE
VBWIN9X.EXE
VBWINNTW.EXE
VCSETUP.EXE
VFSETUP.EXE
VIRUSMDPERSONALFIREWALL.EXE
VNLAN300.EXE
VNPC3000.EXE
VPC42.EXE
VPFW30S.EXE
VPTRAY.EXE
VSCENU6.02D30.EXE
VSECOMR.EXE
VSHWIN32.EXE
VSISETUP.EXE
VSMAIN.EXE
VSMON.EXE
VSSTAT.EXE
VSWIN9XE.EXE
VSWINNTSE.EXE
VSWINPERSE.EXE
W32DSM89.EXE
W9X.EXE
WATCHDOG.EXE
WEBSCANX.EXE
WGFE95.EXE
WHOSWATCHINGME.EXE
WINRECON.EXE
WNT.EXE
WRADMIN.EXE
WRCTRL.EXE
WSBGATE.EXE
WYVERNWORKSFIREWALL.EXE
XPF202EN.EXE
ZAPRO.EXE
ZAPSETUP3001.EXE
ZATUTOR.EXE
ZAUINST.EXE
ZONALM2601.EXE
ZONEALARM.EXE

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