F-Secure Virus Descriptions : Bagle.bw
[Summary] | [Detailed Description] | [Detection]
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A new Bagle variant - Bagle.bw was found on Aug 4th, 2005 and is
spreading in the wild. This variant is very similar to older variants,
it sends variable emails containing EXE attachments. It also opens
backdoor and can act as proxy and email relay.
Installation to system
When the worm's file is run, it copies itself as WINHOST.EXE file
to Windows System folder and creates a startup key for this file
in the Registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"winhost.exe" = "%winsysdir%\winhost.exe"
where %winsysdir% represents Windows System folder name.
The worm also sets the following registry values for later use:
[HKCU\Software\Timeout]
"pid" = <worm process id>
"port" = <backdoor port>
"uid" = <random>
If the worms file is executed with command line option '-upd', the worm
kills process with "pid" value above before proceeding. By default, the
port is 9030. It can be changed later (see Backdoor).
Searching for e-mail addresses
To find victims' e-mail addresses the worm searches all available
hard drives for the files with these extensions:
.wab
.txt
.msg
.htm
.html
.shtm
.stm
.xml
.dbx
.mbx
.mdx
.eml
.nch
.mmf
.ods
.cfg
.asp
.php
.wsh
.adb
.tbb
.sht
.xls
.oft
.uin
.cgi
.mht
.dhtm
.jsp
The worm avoids spreading to e-mail addresses containing any of
the following:
abuse
admin
anyone@
@avp.
bugs@
cafee
certific
contract@
feste
@foo
free-av
f-secur
gold-certs@
google
help@
@iana
icrosoft
info@
kasp
linux
listserv
local
@messagelab
@microsoft
@msn
news
nobody@
noone@
noreply
norton
ntivi
panda
postmaster@
rating@
root@
samples
sopho
spam
support
unix
update
virus
winrar
winzip
Spreading in e-mails
The worm spreads itself in e-mail messages as an executable with
EXE extension. The worm randomly selects subjects, message bodies
and attachment names from its internal lists.
Here are variants of subjects that the worm uses:
Changes..
Encrypted document
Fax Message
Forum notify
Incoming message
Notification
Protected message
Re:
Re:
Re: Document
Re: Hello
Re: Hi
Re: Incoming Message
RE: Incoming Msg
RE: Message Notify
Re: Msg reply
RE: Protected message
RE: Text message
Re: Thanks :)
Re: Thank you!
Re: Yahoo!
Site changes
Update
The message body is one of the following:
Attached file tells everything.
Attach tells everything.
Check attached file.
Check attached file for details.
Here is the file.
Message is in attach
More info is in attach
Pay attention at the attach.
Please, have a look at the attached file.
Please, read the document.
Read the attach.
See attach.
See the attached file for details.
Try this.
Your document is attached.
Your file is attached.
Here are variants of attachment names that the worm uses:
Details.exe
Document.exe
Info.exe
Information.exe
Message.exe
MoreInfo.exe
Readme.exe
text_document.exe
Updates.exe
Spreading to shared folders
The worm spreads to shared folders on an infected computer. Such
functionality allows the worm to spread through file sharing
clients as well as it can copy itself to their shared folders.
When the worm searches for e-mail addresses on all available hard
disks and it finds a folder which name contains 'shar' substring,
it copies itself to that folder with one of the following names:
Ahead Nero 7.exe
hardcore arhive.exe
important.exe
important update.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
Killing processes of security software
The worm kills processes of anti-virus and security software that
are associated with these files:
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
AVPUPD.EXE
AVSYNMGR.EXE
AVWUPD32.EXE
AVXQUAR.EXE
AVprotect9x.exe
BD_PROFESSIONAL.EXE
BIDEF.EXE
BIDSERVER.EXE
BIPCP.EXE
BIPCPEVALSETUP.EXE
BISP.EXE
BLACKD.EXE
BLACKICE.EXE
BOOTWARN.EXE
BORG2.EXE
BS120.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
NAVAPW32.EXE
NAVDX.EXE
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
NavShExt.dll
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.EPROTECTX.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
SETUPVAMEEVAL.EXE
SETUP_FLOWPROTECTOR_US.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
SYSEDIT.EXE
SymWSC.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
ccApp.exe
ccEvtMgr.exe
navapsvc.exe
Connecting to websites
The worm periodically connects to the following websites:
64.12.212.12
64.246.44.10
68.24.54.122
biiig.org
blockism.net
motivethree.com
nine-one-one.ca
paromy.ru
rescan.com
sexyforum.ru
talent2k.com
thehiphops.com
tovarisi.net
www.cardgoods.com
www.evocreations.com
www.ladywears.com
zalala.net
The worm opens PHP scripts on these sites with certain
parameters. This is done for tracking purposes as the site owner
gets the IP address of an infected computer and the backdoor's
port number and version ID.
The worm also tries to download and execute file from domain
'www.cardgoods.com'. At the time of this writing, this file is
not online. The worm also downloads periodically a list of IP
addresses from the same domain. The worm doesn't use these addresses
in anything.
Backdoor
Bagle.bw listens on TCP port 9030. Through this port, the worm can act
as a backdoor, SOCKS v4/5 proxy or HTTP CONNECT proxy. When certain
byte sequence is sent to the port, the backdoor routine starts.
Any other connection is treated as SOCKS or HTTP proxy connection.
The backdoor can perform any of the following actions:
- Restart backdoor/proxy on a different port
- Uninstall worm (delete the worm's file and remove all registry keys)
- Receive any file and execute it
- Receive file and execute it with command line argument '-upd'
- Start SMTP relay
F-Secure Anti-Virus detects Bagle.bw worm since the following
update:
[FSAV_Database_Version]
Version=2005-08-04_02
Technical Details:
Jarkko Turkulainen, Aug 5th, 2005;
F-Secure Corporation
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