WORM_SDBOT.BWH

Malware type: Worm

Aliases: Backdoor.Win32.SdBot.yx (Kaspersky), W32/Sdbot.worm.gen (McAfee), W32.Spybot.Worm (Symantec), Worm/Rbot.67393.1 (Avira), W32/Sdbot-Fam (Sophos),

In the wild: Yes

Destructive: No

Language: English

Platform: Windows 98, ME, NT, 2000, XP

Encrypted: No

Overall risk rating:

Reported infections:

Damage potential:

High

Distribution potential:

High

Description: 

This worm spreads by dropping copies of itself into accessible network shares. It also takes advantage of the following Windows vulnerabilities to propagate:

  • Remote Procedure Call (RPC) Distributed Component Object Model (DCOM) vulnerability
  • LSASS vulnerability

For more information about these vulnerabilities, please refer to the following Microsoft Web pages:

This worm also has backdoor capabilities, and may execute commands coming from a remote malicious user. It also performs distributed denial of service (DDoS) attacks against target sites.

For additional information about this threat, see:

Description created: May. 18, 2005 11:32:05 AM GMT -0800
Description updated: May. 18, 2005 2:31:39 PM GMT -0800


TECHNICAL DETAILS


File type: PE

Memory resident:  Yes

Size of malware: ~67,393 Bytes

Initial samples received on: May 18, 2005

Details:

Installation and Autostart Technique

Upon execution, this worm drops a copy of itself in the Windows System folder as the file MS32.EXE. It also drops MSDIRECTX.SYS, which is detected by Trend Micro as TROJ_ROOTKIT.H, in the same folder. It uses this Trojan to hide its process in the Windows Task Manager.

To ensure its automatic execution at every system startup, this worm creates the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunCompaq32 Service Drivers="ms32.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunServicesCompaq32 Service Drivers="ms32.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\OleCompaq32 Service Drivers="ms32.exe"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunServices Compaq32 Service Drivers="ms32.exe"

HKEY_CURRENT_USER\Software\Microsoft\OLECompaq32 Service Drivers="ms32.exe"

In addition, it modifies the following registry entries:
From:

HKEY_LOCAL_MACHINE\Software\Microsoft\
OLE EnableDCOM = "Y"

HKEY_LOCAL_MACHINE\System\CurrentControlSet Control\Lsa
restrictanonymous = "dword:00000000"

To:

HKEY_LOCAL_MACHINE\Software\Microsoft\
OLE EnableDCOM = "N"

HKEY_LOCAL_MACHINE\System\CurrentControlSet Control\Lsa
restrictanonymous = "dword:00000001"

Propagation and Exploits

This worm spreads by dropping copies of itself into accessible network shares. It also takes advantage of the following Windows vulnerabilities to propagate:

  • Remote Procedure Call (RPC) Distributed Component Object Model (DCOM) vulnerability
  • LSASS vulnerability

For more information about these vulnerabilities, please refer to the following Microsoft Web pages:

This worm spreads by dropping a copy of itself in shared folders. If a folder is inaccessible, it uses the following user names and passwords:

  • 12345
  • 123456
  • 1234567
  • 12345678
  • 123456789
  • 1234567890
  • access
  • accounting
  • accounts
  • admin
  • administrador
  • administrat
  • administrateur
  • administrator
  • admins
  • backup
  • bitch
  • blank
  • brian
  • changeme
  • chris
  • cisco
  • compaq
  • control
  • database
  • databasepass
  • databasepassword
  • db1234
  • dbpass
  • dbpassword
  • default
  • domain
  • domainpass
  • domainpassword
  • exchange
  • george
  • guest
  • hello
  • homeuser
  • internet
  • intranet
  • katie
  • linux
  • login
  • loginpass
  • nokia
  • oeminstall
  • oemuser
  • office
  • oracle
  • orainstall
  • outlook
  • pass1234
  • passwd
  • password
  • password1
  • peter
  • qwerty
  • server
  • siemens
  • sqlpassoainstall
  • staff
  • student
  • susan
  • system
  • teacher
  • technical
  • win2000
  • win2k
  • win98
  • windows
  • winnt
  • winpass
  • winxp

Backdoor Capabilities

This worm has backdoor capabilities, which enable it to connect to the Internet Relay Chat (IRC) server. Once a connection is established, it joins a specific IRC channel, where it listens for commands coming from a remote malicious user. Some of these commands are as follows:

  • Download and execute files
  • Enable DCOM protocol
  • Get system information
  • Emulate an FTP server
  • Scan local area network for listening ports

Process Termination

This worm attempts to terminate the following processes:

  • _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
  • F-Agobot.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
  • Taskmgr.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

Analysis By: Kervin Alintanahin


SOLUTION


Minimum scan engine version needed: 6.810

Pattern file needed: 2.636.06

Pattern release date: May 18, 2005


Important note: The "Minimum scan engine" refers to the earliest Trend Micro scan engine version guaranteed to detect this threat. However, Trend Micro strongly recommends that you update to the latest version in order to get comprehensive protection. Download the latest scan engine here.

Solution:

Note: Refer to manual clean instructions for the malware TROJ_ROOTKIT.H to completely remove this malware.

AUTOMATIC REMOVAL INSTRUCTIONS

To automatically remove this malware from your system, please use Trend Micro Damage Cleanup Template / Engine.

MANUAL REMOVAL INSTRUCTIONS

Restarting in Safe Mode

� On Windows 98 and ME

  1. Restart your computer.
  2. Press the CTRL key until the startup menu appears.
  3. Choose the Safe Mode option then press Enter.

� On Windows NT (VGA mode)

  1. Click Start>Settings>Control Panel.
  2. Double-click the System icon.
  3. Click the Startup/Shutdown tab.
  4. Set the Show List field to 10 seconds and click OK to save this change.
  5. Shut down and restart your computer.
  6. Select VGA mode from the startup menu.

� On Windows 2000

  1. Restart your computer.
  2. Press the F8 key, when you see the Starting Windows bar at the bottom of the screen.
  3. Choose the Safe Mode option from the Windows Advanced Options Menu then press Enter.

� On Windows XP

  1. Restart your computer.
  2. Press F8 after the Power-On Self Test (POST) is done. If the Windows Advanced Options Menu does not appear, try restarting and then pressing F8 several times after the POST screen.
  3. Choose the Safe Mode option from the Windows Advanced Options Menu then press Enter.

Note: After performing all the solutions for the removal of this malware, please restart your system normally, and run your Trend Micro antivirus product.

Editing the Registry

For detailed information about the registry and Registry Editor, refer to the following articles from Microsoft:

  1. About the Registry and How to Use Registry Editor
  2. HOW TO: Backup, Edit, and Restore the Registry in Windows 95, Windows 98, and Windows Me
  3. HOW TO: Backup, Edit, and Restore the Registry in Windows NT 4.0
  4. HOW TO: Back Up, Edit, and Restore the Registry in Windows XP
  5. HOW TO: Backup, Edit, and Restore the Registry in Windows 2000

Removing Autostart Entries from the Registry

Removing autostart entries from the registry prevents the malware from executing at startup.

If the registry entries below are not found, the malware may not have executed as of detection. If so, proceed to the succeeding solution set.

  1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
  2. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>
    Windows>CurrentVersion>Run
  3. In the right panel, locate and delete the entry:
    Compaq32 Service Drivers="ms32.exe"
  4. Follow the instructions above for the following entries:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>
    Windows>CurrentVersion>RunServices Compaq32 Service Drivers="ms32.exe" HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Ole Compaq32 Service Drivers="ms32.exe" HKEY_CURRENT_USER>Software>Microsoft>
    Windows>CurrentVersion>RunServices Compaq32 Service Drivers="ms32.exe" HKEY_CURRENT_USER>Software>Microsoft>OLE Compaq32 Service Drivers="ms32.exe"
  5. Close Registry Editor.

Restoring EnableDCOM and Restrict Anonymous registry entries

This malware modifies EnableDCOM and Restrict Anonymous registry entries to a certain value. To know more about restoring these registries to their original values, please refer to these articles:

  1. COM security frequently asked questions
  2. How to disable DCOM support in Windows
  3. How to Use the RestrictAnonymous Registry Value in Windows 2000
  4. The "RestrictAnonymous" Registry Value May Break the Trust to a Windows 2000 Domain

Additional Windows ME/XP Cleaning Instructions

Users running Windows ME and XP must disable System Restore to allow full scanning of infected systems.

Users running other Windows versions can proceed with the succeeding procedure set(s).

Running Trend Micro Antivirus

Scan your system with Trend Micro antivirus and delete files detected as WORM_SDBOT.BWH. To do this, Trend Micro customers must download the latest pattern file and scan their system. Other Internet users can use HouseCall, Trend Micro's online virus scanner.




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