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Spyware & Virus Directory
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
W32.Gaobot.gen!poly
Risk Level 2: Low
Discovered: March 19, 2004
Updated: April 20, 2004 10:09:04 AM PDT
Also Known As: W32.HLLW.Polybot, Phatbot, W32/Polybot.l!irc [McAfee], WORM_AGOBOT.HM [Trend], Backdoor.Agobot.hm [Kaspersky]
Type: Worm
Infection Length: 278,528 bytes
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
SUMMARY
W32.Gaobot.gen!poly is a worm that attempts to spread through network shares with weak passwords. It also allows attackers to access an infected computer using a predetermined IRC channel.
The worm uses multiple vulnerabilities to spread, including:
- The DCOM RPC vulnerability (described in Microsoft Security Bulletin MS03-026) using TCP port 135.
- The RPC locator vulnerability (described in Microsoft Security Bulletin MS03-001) using TCP port 445.
- The WebDav vulnerability (described in Microsoft Security Bulletin MS03-007) using TCP port 80.
Notes:
- Virus Definitions released before March 24, 2004 detect this threat as W32.HLLW.Polybot.
- Virus Definitions released after February 27, 2004 and before March 19, 2004 detect this threat as W32.HLLW.Gaobot.gen.
Protection
- Virus Definitions (LiveUpdate™ Weekly) March 24, 2004
- Virus Definitions (Intelligent Updater) March 19, 2004
Threat Assessment
Wild
- Wild Level: Low
- Number of Infections: 50 - 999
- Number of Sites: More than 10
- Geographical Distribution: Low
- Threat Containment: Moderate
- Removal: Moderate
Damage
- Damage Level: Medium
- Releases Confidential Info: Allows unauthorized remote access.
- Compromises Security Settings: Terminates antivirus and firewall processes.
Distribution
- Distribution Level: Medium
- Ports: TCP ports 135, 445, 80
- Shared Drives: Attempts to copy itself to network shares with weak passwords.
TECHNICAL DETAILS
When W32.Gaobot.gen!poly is executed, it performs the following actions:
- Copies itself as one of the following files:
- %System%soundman.exe
- %System%confgldr.exe
- %System%spoolsvc.exe
- %System%winwork.exe
- %System%winhelp.exe
- %System%csrs.exe
Note: %System% is a variable. The worm locates the System folder and copies itself to that location. By default, this is C:WindowsSystem (Windows 95/98/Me), C:WinntSystem32 (Windows NT/2000), or C:WindowsSystem32 (Windows XP).
- Adds one of the following values:
"^`d}qZxu" = "~`d}qzxu3zYF"
"Configuration Loader"="confgldr.exe"
"Video Process"="sysconf.exe"
"Service Host Process"="spoolsvc.exe"
"Winmsg"="winwork.exe"
"svchost"="winhelp.exe"
"csrs"="csrs.exe"
to the registry keys:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersion
RunServices
so that W32.Gaobot.gen!poly runs when you start Windows.
- May create a service for the worm with one of the following names and sets it to automatically run on startup:
- Configuration Loader
- SoundMan
- Service Host Process
- Hides all the files that contain the word "soun."
- The worm may hook the NTQuerySystemInformation API on NTDLL.DLL in an attempt to hide itself.
- May add the following lines to the %System%driversetchosts file:
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 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.trendmicro.com
- Connects to a predetermined IRC channel, using its own IRC client, and listens for commands.
- Allows an attacker to remotely control a compromised computer and perform any of the following actions:
- Download and execute files
- Steal system information
- Harvest email addresses
- Steal CD keys for various games
- Attempt to spread to other systems by exploiting the following vulnerabilities:
- The DCOM RPC vulnerability (described in Microsoft Security Bulletin MS03-026) using TCP port 135.
- The RPC locator vulnerability (described in Microsoft Security Bulletin MS03-001) using TCP port 445.
- The WebDav vulnerability (described in Microsoft Security Bulletin MS03-007) using TCP port 80.
- Probes the following shares:
- c$
- print$
- c
- d$
- e$
- admin$
- using the following user names and passwords, as well as any user names found using NetUserEnum():
User names
- <empty>
- a
- aaa
- abc
- admin
- Administrador
- administrador
- Administrateur
- administrator
- Administratî’š
- admins
- asdf
- computer
- Convidado
- Coordinatore
- database
- Default
- Dell
- Gast
- Guest
- home
- Inviter
- kanri
- kanri-sha
- login
- mary
- mgmt
- mysql
- OEM
- Ospite
- Owner
- owner
- OWNER
- pc
- qwer
- root
- server
- Standard
- student
- teacher
- temp
- Test
- test
- User
- user
- Verwalter
- win
- wwwadmin
- x
- xp
- xyz
Passwords: - 0
- 1
- 7
- 12
- 69
- 110
- 111
- 123
- 666
- 1234
- 2002
- 2003
- 2004
- 2600
- 12345
- 54321
- 111111
- 121212
- 123123
- 123456
- 654321
- 1234567
- 11111111
- 12345678
- 88888888
- 123456789
- !@#$
- !@#$%
- !@#$%^
- !@#$%^&
- !@#$%^&*
- 1234qwer
- 123abc
- 123asd
- 123qwe
- a
- aaa
- abc
- abc123
- abcd
- ACCESS
- admin
- Admin
- admin123
- Administrador
- administrador
- Administrateur
- ADMINISTRATOR
- administrator
- admins
- alpha
- asdf
- asdfgh
- asdfghjkl
- ASP
- baby
- backdoor
- BACKUP
- BOX
- Box
- box
- changeme
- CNN
- computer
- Coordinatore
- crash
- database
- Default
- devil
- dude
- enable
- feds
- fish
- foobar
- fucked
- gay
- god
- godblessyou
- hax
- home
- homework
- idiot
- ihavenopass
- Internet
- kids
- leet
- linux
- LOCAL
- login
- Login
- lol
- love
- metal
- mybaby
- mybox
- mypass
- mypc
- noob
- oracle
- Ospite
- own
- owned
- owner
- pass
- passwd
- PASSWD
- passwd
- password
- Password
- password123
- pat
- patrick
- pc
- penis
- PHP
- poiuytrewq
- porn
- private
- pussy
- pw
- pwd
- pwned
- qwer
- qwerty
- qwertyuiop
- r00t
- red123
- ROOT
- root
- rooted
- school
- secret
- secrets
- SERVER
- server
- sex
- share
- student
- super
- superman
- supersecret
- sybase
- SYSTEM
- teacher
- TEMP
- temp
- TEST
- test
- test123
- UNIX
- user
- vagina
- Verwalter
- werty
- wh0re
- whore
- win
- windows2k
- windows98
- windowsME
- WindowsXP
- windoze
- work
- wwwadmin
- x
- xp
- xxx
- xxyyzz
- yxcv
- z
- zxcv
- zxcvbnm
11. Ends the following processes associated with antivirus and firewall software:
- _AVP32.EXE
- _AVPCC.EXE
- _AVPM.EXE
- ACKWIN32.EXE
- ADAWARE.EXE
- ADVXDWIN.EXE
- AGENTSVR.EXE
- AGENTW.EXE
- ALERTSVC.EXE
- ALEVIR.EXE
- ALOGSERV.EXE
- AMON9X.EXE
- ANTI-TROJAN.EXE
- ANTIVIRUS.EXE
- ANTS.EXE
- APIMONITOR.EXE
- APLICA32.EXE
- APVXDWIN.EXE
- ARR.EXE
- ATCON.EXE
- ATGUARD.EXE
- ATRO55EN.EXE
- ATUPDATER.EXE
- ATWATCH.EXE
- AU.EXE
- AUPDATE.EXE
- AUTODOWN.EXE
- AUTO-PROTECT.NAV80TRY.EXE
- AUTOTRACE.EXE
- AUTOUPDATE.EXE
- AVCONSOL.EXE
- AVE32.EXE
- AVGCC32.EXE
- AVGCTRL.EXE
- AVGNT.EXE
- AVGSERV.EXE
- AVGSERV9.EXE
- AVGUARD.EXE
- AVGW.EXE
- AVKPOP.EXE
- AVKSERV.EXE
- AVKSERVICE.EXE
- AVKWCTl9.EXE
- AVLTMAIN.EXE
- AVNT.EXE
- AVP.EXE
- AVP32.EXE
- AVPCC.EXE
- AVPDOS32.EXE
- AVPM.EXE
- AVPTC32.EXE
- AVPUPD.EXE
- AVSCHED32.EXE
- AVSYNMGR.EXE
- AVWIN95.EXE
- AVWINNT.EXE
- AVWUPD.EXE
- AVWUPD32.EXE
- AVWUPSRV.EXE
- AVXMONITOR9X.EXE
- AVXMONITORNT.EXE
- AVXQUAR.EXE
- BACKWEB.EXE
- BARGAINS.EXE
- BD_PROFESSIONAL.EXE
- BEAGLE.EXE
- BELT.EXE
- BIDEF.EXE
- BIDSERVER.EXE
- BIPCP.EXE
- BIPCPEVALSETUP.EXE
- BISP.EXE
- BLACKD.EXE
- BLACKICE.EXE
- BLSS.EXE
- BOOTCONF.EXE
- BOOTWARN.EXE
- BORG2.EXE
- BPC.EXE
- BRASIL.EXE
- BS120.EXE
- BUNDLE.EXE
- BVT.EXE
- CCAPP.EXE
- CCEVTMGR.EXE
- CCPXYSVC.EXE
- CDP.EXE
- CFD.EXE
- CFGWIZ.EXE
- CFIADMIN.EXE
- CFIAUDIT.EXE
- CFINET.EXE
- CFINET32.EXE
- Claw95.EXE
- CLAW95CF.EXE
- CLEAN.EXE
- CLEANER.EXE
- CLEANER3.EXE
- CLEANPC.EXE
- CLICK.EXE
- CMD32.EXE
- CMESYS.EXE
- CMGRDIAN.EXE
- CMON016.EXE
- CONNECTIONMONITOR.EXE
- CPD.EXE
- CPF9X206.EXE
- CPFNT206.EXE
- CTRL.EXE
- CV.EXE
- CWNB181.EXE
- CWNTDWMO.EXE
- DATEMANAGER.EXE
- DCOMX.EXE
- DEFALERT.EXE
- DEFSCANGUI.EXE
- DEFWATCH.EXE
- DEPUTY.EXE
- DIVX.EXE
- DLLCACHE.EXE
- DLLREG.EXE
- DOORS.EXE
- DPF.EXE
- DPFSETUP.EXE
- DPPS2.EXE
- DRWATSON.EXE
- DRWEB32.EXE
- DRWEBUPW.EXE
- DSSAGENT.EXE
- DVP95.EXE
- DVP95_0.EXE
- ECENGINE.EXE
- EFPEADM.EXE
- EMSW.EXE
- ENT.EXE
- ESAFE.EXE
- ESCANH95.EXE
- ESCANHNT.EXE
- ESCANV95.EXE
- ESPWATCH.EXE
- ETHEREAL.EXE
- ETRUSTCIPE.EXE
- EVPN.EXE
- EXANTIVIRUS-CNET.EXE
- EXE.AVXW.EXE
- EXPERT.EXE
- EXPLORE.EXE
- F-AGNT95.EXE
- FAMEH32.EXE
- FAST.EXE
- FCH32.EXE
- FIH32.EXE
- FINDVIRU.EXE
- FIREWALL.EXE
- FLOWPROTECTOR.EXE
- FNRB32.EXE
- FPROT.EXE
- F-PROT.EXE
- F-PROT95.EXE
- FP-WIN.EXE
- FP-WIN_TRIAL.EXE
- FRW.EXE
- FSAA.EXE
- FSAV.EXE
- FSAV32.EXE
- FSAV530STBYB.EXE
- FSAV530WTBYB.EXE
- FSAV95.EXE
- FSGK32.EXE
- FSM32.EXE
- FSMA32.EXE
- FSMB32.EXE
- F-STOPW.EXE
- GATOR.EXE
- GBMENU.EXE
- GBPOLL.EXE
- GENERICS.EXE
- GMT.EXE
- GUARD.EXE
- GUARDDOG.EXE
- HACKTRACERSETUP.EXE
- HBINST.EXE
- HBSRV.EXE
- HIJACKTHIS.EXE
- HOTACTIO.EXE
- HOTPATCH.EXE
- HTLOG.EXE
- HTPATCH.EXE
- HWPE.EXE
- HXDL.EXE
- HXIUL.EXE
- IAMAPP.EXE
- IAMSERV.EXE
- IAMSTATS.EXE
- IBMASN.EXE
- IBMAVSP.EXE
- ICLOAD95.EXE
- ICLOADNT.EXE
- ICMON.EXE
- ICSUPP95.EXE
- ICSUPPNT.EXE
- IDLE.EXE
- IEDLL.EXE
- IEDRIVER.EXE
- IEXPLORER.EXE
- IFACE.EXE
- IFW2000.EXE
- INETLNFO.EXE
- INFUS.EXE
- INFWIN.EXE
- INIT.EXE
- INTDEL.EXE
- INTREN.EXE
- IOMON98.EXE
- IPARMOR.EXE
- IRIS.EXE
- ISASS.EXE
- ISRV95.EXE
- ISTSVC.EXE
- JAMMER.EXE
- JDBGMRG.EXE
- JEDI.EXE
- KAVLITE40ENG.EXE
- KAVPERS40ENG.EXE
- KAVPF.EXE
- KAZZA.EXE
- KEENVALUE.EXE
- KERIO-PF-213-EN-WIN.EXE
- KERIO-WRL-421-EN-WIN.EXE
- KERIO-WRP-421-EN-WIN.EXE
- KERNEL32.EXE
- KILLPROCESSSETUP161.EXE
- LAUNCHER.EXE
- LDNETMON.EXE
- LDPRO.EXE
- LDPROMENU.EXE
- LDSCAN.EXE
- LNETINFO.EXE
- LOADER.EXE
- LOCALNET.EXE
- LOCKDOWN.EXE
- LOCKDOWN2000.EXE
- LOOKOUT.EXE
- LORDPE.EXE
- LSETUP.EXE
- LUALL.EXE
- LUAU.EXE
- LUCOMSERVER.EXE
- LUINIT.EXE
- LUSPT.EXE
- MAPISVC32.EXE
- MCAGENT.EXE
- MCMNHDLR.EXE
- MCSHIELD.EXE
- MCTOOL.EXE
- MCUPDATE.EXE
- MCVSRTE.EXE
- MCVSSHLD.EXE
- MD.EXE
- MFIN32.EXE
- MFW2EN.EXE
- MFWENG3.02D30.EXE
- MGAVRTCL.EXE
- MGAVRTE.EXE
- MGHTML.EXE
- MGUI.EXE
- MINILOG.EXE
- MMOD.EXE
- MONITOR.EXE
- MOOLIVE.EXE
- MOSTAT.EXE
- MPFAGENT.EXE
- MPFSERVICE.EXE
- MPFTRAY.EXE
- MRFLUX.EXE
- MSAPP.EXE
- MSBB.EXE
- MSBLAST.EXE
- MSCACHE.EXE
- MSCCN32.EXE
- MSCMAN.EXE
- MSCONFIG.EXE
- MSDM.EXE
- MSDOS.EXE
- MSIEXEC16.EXE
- MSINFO32.EXE
- MSLAUGH.EXE
- MSMGT.EXE
- MSMSGRI32.EXE
- MSSMMC32.EXE
- MSSYS.EXE
- MSVXD.EXE
- MU0311AD.EXE
- MWATCH.EXE
- N32SCANW.EXE
- NAV.EXE
- NAVAP.NAVAPSVC.EXE
- NAVAPSVC.EXE
- NAVAPW32.EXE
- NAVDX.EXE
- NAVENGNAVEX15.NAVLU32.EXE
- NAVLU32.EXE
- NAVNT.EXE
- NAVSTUB.EXE
- NAVW32.EXE
- NAVWNT.EXE
- NC2000.EXE
- NCINST4.EXE
- NDD32.EXE
- NEOMONITOR.EXE
- NEOWATCHLOG.EXE
- NETARMOR.EXE
- NETD32.EXE
- NETINFO.EXE
- NETMON.EXE
- NETSCANPRO.EXE
- NETSPYHUNTER-1.2.EXE
- NETSTAT.EXE
- NETUTILS.EXE
- NISSERV.EXE
- NISUM.EXE
- NMAIN.EXE
- NOD32.EXE
- NORMIST.EXE
- NORTON_INTERNET_SECU_3.0_407.EXE
- NOTSTART.EXE
- NPF40_TW_98_NT_ME_2K.EXE
- NPFMESSENGER.EXE
- NPROTECT.EXE
- NPSCHECK.EXE
- NPSSVC.EXE
- NSCHED32.EXE
- NSSYS32.EXE
- NSTASK32.EXE
- NSUPDATE.EXE
- NT.EXE
- NTRTSCAN.EXE
- NTVDM.EXE
- NTXconfig.EXE
- NUI.EXE
- NUPGRADE.EXE
- NVARCH16.EXE
- NVC95.EXE
- NVSVC32.EXE
- NWINST4.EXE
- NWSERVICE.EXE
- NWTOOL16.EXE
- OLLYDBG.EXE
- ONSRVR.EXE
- OPTIMIZE.EXE
- OSTRONET.EXE
- OTFIX.EXE
- OUTPOST.EXE
- OUTPOSTINSTALL.EXE
- OUTPOSTPROINSTALL.EXE
- PADMIN.EXE
- PANIXK.EXE
- PATCH.EXE
- PAVCL.EXE
- PAVPROXY.EXE
- PAVSCHED.EXE
- PAVW.EXE
- PCC2002S902.EXE
- PCC2K_76_1436.EXE
- PCCIOMON.EXE
- PCCNTMON.EXE
- PCCWIN97.EXE
- PCCWIN98.EXE
- PCDSETUP.EXE
- PCFWALLICON.EXE
- PCIP10117_0.EXE
- PCSCAN.EXE
- PDSETUP.EXE
- PENIS.EXE
- PERISCOPE.EXE
- PERSFW.EXE
- PERSWF.EXE
- PF2.EXE
- PFWADMIN.EXE
- PGMONITR.EXE
- PINGSCAN.EXE
- PLATIN.EXE
- POP3TRAP.EXE
- POPROXY.EXE
- POPSCAN.EXE
- PORTDETECTIVE.EXE
- PORTMONITOR.EXE
- POWERSCAN.EXE
- PPINUPDT.EXE
- PPTBC.EXE
- PPVSTOP.EXE
- PRIZESURFER.EXE
- PRMT.EXE
- PRMVR.EXE
- PROCDUMP.EXE
- PROCESSMONITOR.EXE
- PROCEXPLORERV1.0.EXE
- PROGRAMAUDITOR.EXE
- PROPORT.EXE
- PROTECTX.EXE
- PSPF.EXE
- PURGE.EXE
- PUSSY.EXE
- PVIEW95.EXE
- QCONSOLE.EXE
- QSERVER.EXE
- RAPAPP.EXE
- RAV7.EXE
- RAV7WIN.EXE
- RAV8WIN32ENG.EXE
- RAY.EXE
- RB32.EXE
- RCSYNC.EXE
- REALMON.EXE
- REGED.EXE
- REGEDIT.EXE
- REGEDT32.EXE
- RESCUE.EXE
- RESCUE32.EXE
- RRGUARD.EXE
- RSHELL.EXE
- RTVSCAN.EXE
- RTVSCN95.EXE
- RULAUNCH.EXE
- RUN32DLL.EXE
- RUNDLL.EXE
- RUNDLL16.EXE
- RUXDLL32.EXE
- SAFEWEB.EXE
- SAHAGENT.EXE
- SAVE.EXE
- SAVENOW.EXE
- SBSERV.EXE
- SC.EXE
- SCAM32.EXE
- SCAN32.EXE
- SCAN95.EXE
- SCANPM.EXE
- SCRSCAN.EXE
- SCRSVR.EXE
- SCVHOST.EXE
- SD.EXE
- SERV95.EXE
- SERVICE.EXE
- SERVLCE.EXE
- SERVLCES.EXE
- SETUP_FLOWPROTECTOR_US.EXE
- SETUPVAMEEVAL.EXE
- SFC.EXE
- SGSSFW32.EXE
- SH.EXE
- SHELLSPYINSTALL.EXE
- SHN.EXE
- SHOWBEHIND.EXE
- SMC.EXE
- SMS.EXE
- SMSS32.EXE
- SOAP.EXE
- SOFI.EXE
- SPERM.EXE
- SPF.EXE
- SPHINX.EXE
- SPOLER.EXE
- SPOOLCV.EXE
- SPOOLSV32.EXE
- SPYXX.EXE
- SREXE.EXE
- SRNG.EXE
- SS3EDIT.EXE
- SSG_4104.EXE
- SSGRATE.EXE
- ST2.EXE
- START.EXE
- STCLOADER.EXE
- SUPFTRL.EXE
- SUPPORT.EXE
- SUPPORTER5.EXE
- SVC.EXE
- SVCHOSTC.EXE
- SVCHOSTS.EXE
- SVSHOST.EXE
- SWEEP95.EXE
- SWEEPNET.SWEEPSRV.SYS.SWNETSUP.EXE
- SYMPROXYSVC.EXE
- SYMTRAY.EXE
- SYSEDIT.EXE
- SYSTEM.EXE
- SYSTEM32.EXE
- SYSUPD.EXE
- TASKMG.EXE
- TASKMO.EXE
- TASKMON.EXE
- TAUMON.EXE
- TBSCAN.EXE
- TC.EXE
- TCA.EXE
- TCM.EXE
- TDS2-98.EXE
- TDS2-NT.EXE
- TDS-3.EXE
- TEEKIDS.EXE
- TFAK.EXE
- TFAK5.EXE
- TGBOB.EXE
- TITANIN.EXE
- TITANINXP.EXE
- TRACERT.EXE
- TRICKLER.EXE
- TRJSCAN.EXE
- TRJSETUP.EXE
- TROJANTRAP3.EXE
- TSADBOT.EXE
- TVMD.EXE
- TVTMD.EXE
- UNDOBOOT.EXE
- UPDAT.EXE
- UPDATE.EXE
- UPGRAD.EXE
- UTPOST.EXE
- VBCMSERV.EXE
- VBCONS.EXE
- VBUST.EXE
- VBWIN9X.EXE
- VBWINNTW.EXE
- VCSETUP.EXE
- VET32.EXE
- VET95.EXE
- VETTRAY.EXE
- VFSETUP.EXE
- VIR-HELP.EXE
- VIRUSMDPERSONALFIREWALL.EXE
- VNLAN300.EXE
- VNPC3000.EXE
- VPC32.EXE
- VPC42.EXE
- VPFW30S.EXE
- VPTRAY.EXE
- VSCAN40.EXE
- VSCENU6.02D30.EXE
- VSCHED.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
- WEBDAV.EXE
- WEBSCANX.EXE
- WEBTRAP.EXE
- WFINDV32.EXE
- WGFE95.EXE
- WHOSWATCHINGME.EXE
- WIMMUN32.EXE
- WIN32.EXE
- WIN32US.EXE
- WINACTIVE.EXE
- WIN-BUGSFIX.EXE
- WINDOW.EXE
- WINDOWS.EXE
- WININETD.EXE
- WININIT.EXE
- WININITX.EXE
- WINLOGIN.EXE
- WINMAIN.EXE
- WINNET.EXE
- WINPPR32.EXE
- WINRECON.EXE
- WINSERVN.EXE
- WINSSK32.EXE
- WINSTART.EXE
- WINSTART001.EXE
- WINTSK32.EXE
- WINUPDATE.EXE
- WKUFIND.EXE
- WNAD.EXE
- WNT.EXE
- WRADMIN.EXE
- WRCTRL.EXE
- WSBGATE.EXE
- WUPDATER.EXE
- WUPDT.EXE
- WYVERNWORKSFIREWALL.EXE
- XPF202EN.EXE
- ZAPRO.EXE
- ZAPSETUP3001.EXE
- ZATUTOR.EXE
- ZONALM2601.EXE
- ZONEALARM.EXE
Recommendations
Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":
- Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, telnet, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch updates.
- If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
- Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services (for example, all Windows-based computers should have the current Service Pack installed.). Additionally, please apply any security updates that are mentioned in this writeup, in trusted Security Bulletins, or on vendor Web sites.
- Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
- Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files.
- Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media.
- Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
REMOVAL
The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.
- Disable System Restore (Windows Me/XP).
- Restart the computer in Safe mode or VGA mode.
- Restore the Hosts file.
- Reverse the changes made to the registry (removing the service and Run keys that the worm added).
- Update the virus definitions.
- Run a full system scan and delete all the files detected as W32.Gaobot.gen!poly.
Before you begin:
If you are running Windows NT/2000/XP, make sure that you do, or have done, the following:
- Create a secure password. This threat takes advantage of weak network passwords. (A full-time Internet connection, such as DSL or Cable, is considered a network connection for these purposes.)
- Patch the DCOM RPC vulnerability as described in Microsoft Security Bulletin MS03-026.
- Patch the WebDav vulnerability as described in Microsoft Security Bulletin MS03-007.
1. To disable System Restore (Windows Me/XP)
If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.
Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations.
Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat.
For instructions on how to turn off System Restore, read your Windows documentation, or one of the following articles:
- "How to disable or enable Windows Me System Restore"
- "How to turn off or turn on Windows XP System Restore"
Note: When you are completely finished with the removal procedure and are satisfied that the threat has been removed, re-enable System Restore by following the instructions in the aforementioned documents.
For additional information, and an alternative to disabling Windows Me System Restore, see the Microsoft Knowledge Base article, "Antivirus Tools Cannot Clean Infected Files in the _Restore Folder," Article ID: Q263455.
2. To restart the computer in Safe mode or VGA mode
Shut down the computer and turn off the power. Wait for at least 30 seconds, and then restart the computer in Safe mode or VGA mode.
- For Windows 95, 98, Me, 2000, or XP users, restart the computer in Safe mode. For instructions, read the document, "How to start the computer in Safe Mode."
- For Windows NT 4 users, restart the computer in VGA mode.
3. To restore the Hosts file
The following instructions discuss how to fix the Windows host file so that the added name resolution entries do not prevent you from visiting the Web sites of antivirus vendors.
- Using Windows Explorer, look for a file named "hosts" in the following locations, if they exist:
- C:WindowsSystem32DriversEtchosts
- C:WinntSystem32DriversEtchosts
- D:WindowsSystem32DriversEtchosts
- D:WinntSystem32DriversEtchosts
- For each hosts file that you find, double-click the file.
- When the "Open With" dialog box appears, scroll through the list and select Notepad. Do not check the "Always open this program with. . ." box.
- Delete the following lines within the file:
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 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.trendmicro.com
Do not delete the line:
127.0.0.1 localhost
- Save the hosts file.
4. To reverse the changes made to the registry
WARNING: Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified keys only. Read the document, "How to make a backup of the Windows registry," for instructions.
- Click Start, and then click Run. (The Run dialog box appears.)
- Type regedit
Then click OK. (The Registry Editor opens.)
- Navigate to the key:
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun
- In the right pane, delete any of the following values:
"^`d}qZxu" = "~`d}qzxu3zYF"
"Configuration Loader"="confgldr.exe"
"Video Process"="sysconf.exe"
"Service Host Process"="spoolsvc.exe"
"svchost"="winhelp.exe"
"csrs"="csrs.exe"
- Do one of the following:
- If you are using Windows NT/2000/XP, skip to step h.
- If you are using Windows 95/98/Me, go on to step f.
- Navigate to the key:
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersion
RunServices
- In the right pane, delete any of the following values:
"^`d}qZxu" = "~`d}qzxu3zYF"
"Configuration Loader"="confgldr.exe"
"Video Process"="sysconf.exe"
"Service Host Process"="spoolsvc.exe"
"svchost"="winhelp.exe"
"csrs"="csrs.exe"
- Navigate to and delete the keys:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesSoundMan
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicessvc32
- Exit the Registry Editor.
- Restart the computer in Normal mode. For instructions, read the section on returning to Normal mode in the document, "How to start the computer in Safe Mode."
5. To update the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
- Running LiveUpdate, which is the easiest way to obtain virus definitions: These virus definitions are posted to the LiveUpdate servers once each week (usually on Wednesdays), unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, refer to the Virus Definitions (LiveUpdate).
- Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted on U.S. business days (Monday through Friday). You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to the Virus Definitions (Intelligent Updater).
The Intelligent Updater virus definitions are available: Read "How to update virus definition files using the Intelligent Updater" for detailed instructions.
6. To scan for and delete the infected files
- Start your Symantec antivirus program and make sure that it is configured to scan all the files.
- For Norton AntiVirus consumer products: Read the document, "How to configure Norton AntiVirus to scan all files."
- For Symantec AntiVirus Enterprise products: Read the document, "How to verify that a Symantec Corporate antivirus product is set to scan all files."
- Run a full system scan.
- If any files are detected as W32.Gaobot.gen!poly, click Delete.
Spy Sweeper 5.2 stops spyware in its tracks while offering home computer users the ability to configure the program to suit their specific needs, such as:
Choose a Quick, Full or Custom Sweep: With Spy Sweeper 5.2, you can easily choose to perform a quick, full or customized sweep. If you're looking for an immediate diagnosis, choose a quick sweep. For a pinpointed search, customize your sweep to have Spy Sweeper skip files by folder or file extension. For a deep cleaning, opt for a full sweep.
Exclude Files from a Sweep: Spy Sweeper allows you to save time during a sweep by skipping specific files or different sections of your PC. You can select specific file extension, such as .xls or .mpg to exclude.
Additional Highlights
As soon as it's installed, Spy Sweeper gives 360 degrees of protection against spyware, including:
Simple Sweeps: Detecting spyware and removing unwanted programs found on your computer in three effortless steps
Easy Management: Quickly and simply configure program, sweep and upgrade options
Fast Home: Use the home screen to access the most commonly used functions of Spy Sweeper
Shields Summary: A redesigned shields summary page makes it simple to see at a glance which shields are on or off
Action Alerts: Receive clear, easy-to-understand notifications when new spyware threats are detected
"Spy Sweeper remains a favorite for protection from spyware."
"This program's dominance is apparent as soon as you install it."
