Trojan.Lodav.C

1. Copies itself as %System%\winlog.exe.
   
   Note: %System% is a variable that refers to the System folder. By default this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
   
   
2. Creates the following file:
   
   %System%\winlog.dll
   
   
3. Adds the value:
   
   "key2" = "%System%\winlog.exe"
   
   to the registry subkeys:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
   
   so that it runs every time Windows starts.
   
   
4. Deletes the following security-related registry subkeys:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Symantec
   HKEY_LOCAL_MACHINE\SOFTWARE\McAfee
   HKEY_LOCAL_MACHINE\SOFTWARE\KasperskyLab
   HKEY_LOCAL_MACHINE\SOFTWARE\Agnitum
   HKEY_LOCAL_MACHINE\SOFTWARE\Panda Software
   HKEY_LOCAL_MACHINE\SOFTWARE\Zone Labs
   HKEY_LOCAL_MACHINE\SOFTWARE\Trend Micro
   
   
5. Deletes the following security-related registry entries:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"Symantec NetDriver Monitor"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"ccApp"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"NAV CfgWiz"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"SSC_UserPrompt"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"McAfee Guardian"
   HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"McAfee.InstantUpdate.Monitor"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"APVXDWIN"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"KAV50"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"avg7_cc"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"avg7_emc"
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"Zone Labs Client"
   
   
6. Ends the following processes, most of which are security related:
   
   
   • ashAvast.exe
   • ashDisp.exe
   • ashEnhcd.exe
   • ashPopWz.exe
   • ashSimpl.exe
   • ashSkPck.exe
   • ashWebSv.exe
   • AUPDATE.EXE
   • Avconsol.exe
   • avgcc.exe
   • avgemc.exe
   • AVGNT.EXE
   • AVSCHED32.EXE
   • Avsynmgr.exe
   • AVWUPD32.EXE
   • bdmcon.exe
   • bdnews.exe
   • bdsubmit.exe
   • bdswitch.exe
   • cafix.exe
   • ccApp.exe
   • CCEVTMGR.EXE
   • CCSETMGR.EXE
   • ClamTray.exe
   • ClamWin.exe
   • CMGrdian.exe
   • drwadins.exe
   • drweb32w.exe
   • drwebscd.exe
   • drwebupw.exe
   • freshclam.exe
   • GUARDGUI.EXE
   • GuardNT.exe
   • INETUPD.EXE
   • InocIT.exe
   • InoUpTNG.exe
   • isafe.exe
   • KAV.exe
   • kavmm.exe
   • KAVPF.exe
   • LUALL.EXE
   • Luupdate.exe
   • Mcshield.exe
   • NAVAPSVC.EXE
   • nod32.exe
   • nod32kui.exe
   • NPFMNTOR.EXE
   • npfmsg.exe
   • Nvcod.exe
   • Nvcte.exe
   • Nvcut.exe
   • outpost.exe
   • pccguide.exe
   • PcCtlCom.exe
   • QHPF.EXE
   • Realmon.exe
   • regedit.exe
   • regedt32.exe
   • RuLaunch.exe
   • SNDSrvc.exe
   • SPBBCSvc.exe
   • spiderml.exe
   • symlcsvc.exe
   • Tmntsrv.exe
   • TmPfw.exe
   • tmproxy.exe
   • Up2Date.exe
   • upgrepl.exe
   • Vba32ECM.exe
   • Vba32ifs.exe
   • vba32ldr.exe
   • Vba32PP3.exe
   • Vshwin32.exe
   • VsStat.exe
   • zatutor.exe
   • zlclient.exe
   • taskmgr.exe
   • zonealarm.exe
   • advapi32.dll
   • OpenSCManagerA
   • OpenServiceA
   • ControlService
   • ChangeServiceConfigA
   • CloseServiceHandle
   • ashAvast.exe
   • ashDisp.exe
   • ashEnhcd.exe
   • ashPopWz.exe
   • ashShA64.dll
   • ashSimpl.exe
   • ashSkPck.exe
   • ashWebSv.exe
   • AUPDATE.EXE
   • Avconsol.exe
   • avgcc.exe
   • AVGCMSG.DLL
   • avgemc.exe
   • AVGNT.EXE
   • AVSCHED32.DLL
   • AVSCHED32.EXE
   • Avsynmgr.exe
   • AVWUPD32.EXE
   • BCGCB59.dll
   • bdmcon.exe
   • bdnews.exe
   • bdsubmit.exe
   • bdswitch.exe
   • cafix.exe
   • ccApp.exe
   • CCEVTMGR.EXE
   • ccl30.dll
   • CCSETMGR.EXE
   • ccvrtrst.dll
   • ClamTray.exe
   • ClamWin.exe
   • CMGrdian.exe
   • D2htls32.dll
   • drwadins.exe
   • drweb32w.exe
   • drwebscd.exe
   • drwebupw.exe
   • FFJMPWEB.DLL
   • freshclam.exe
   • GUARDEVT.DLL
   • GUARDGUI.EXE
   • GUARDMSG.DLL
   • GuardNT.exe
   • IksysT32.dll
   • INETUPD.EXE
   • InocIT.exe
   • InoOEM.dll
   • InoOption.dll
   • InoUpTNG.exe
   • isafe.exe
   • KAV.exe
   • kavmm.exe
   • KAVPF.exe
   • LUALL.EXE
   • LUINSDLL.DLL
   • Luupdate.exe
   • Mcshield.exe
   • NAVAPSVC.EXE
   • nod32.exe
   • nod32api.dll
   • nod32kui.exe
   • NPFMNTOR.EXE
   • npfmsg.exe
   • Nvccf0D.dll
   • Nvcevlog.dll
   • Nvcod.exe
   • Nvcte.exe
   • Nvcut.exe
   • OCONNDLG.DLL
   • OCOOKDLG.DLL
   • outpost.exe
   • pccguide.exe
   • PcCtlCom.exe
   • python23.dll
   • QHPF.EXE
   • Realmon.exe
   • RuLaunch.exe
   • schface.dll
   • SNDSrvc.exe
   • SPBBCSvc.exe
   • spiderml.exe
   • symlcsvc.exe
   • T2w32.dll
   • Tmntsrv.exe
   • TmPfw.exe
   • tmproxy.exe
   • Up2Date.exe
   • upgrepl.exe
   • Vba32ifs.exe
   • vba32ldr.exe
   • Vba32PP3.exe
   • vbaifps.dll
   • vetredir.dll
   • Vshwin32.exe
   • VsStat.exe
   • vsvault.dll
   • XT1922.dll
   • Vba32ECM.exe
   • zatutor.exe
   • zlavscan.dll
   • zlclient.exe
   • zonealarm.exe
     
     
7. Attempts to rename the following files, most of which are security related:
   
   
   • ashAvast.exe - 1ashAvast.exe
   • ashDisp.exe - 1ashDisp.exe
   • ashEnhcd.exe - 1ashEnhcd.exe
   • ashPopWz.exe - 1ashPopWz.exe
   • ashShA64.dll - 1ashShA64.dll
   • ashSimpl.exe - 1ashSimpl.exe
   • ashSkPck.exe - 1ashSkPck.exe
   • ashWebSv.exe - 1ashWebSv.exe
   • AUPDATE.EXE - 1AUPDATE.EXE
   • Avconsol.exe - 1Avconsol.exe
   • avgcc.exe - 1avgcc.exe
   • AVGCMSG.DLL - 1AVGCMSG.DLL
   • avgemc.exe - 1avgemc.exe
   • AVGNT.EXE - 1AVGNT.EXE
   • AVSCHED32.DLL - 1AVSCHED32.DLL
   • AVSCHED32.EXE - 1AVSCHED32.EXE
   • Avsynmgr.exe - 1Avsynmgr.exe
   • AVWUPD32.EXE - 1AVWUPD32.EXE
   • BCGCB59.dll - 1BCGCB59.dll
   • bdmcon.exe - 1bdmcon.exe
   • bdnews.exe - 1bdnews.exe
   • bdsubmit.exe - 1bdsubmit.exe
   • bdswitch.exe - 1bdswitch.exe
   • cafix.exe - 1cafix.exe
   • ccApp.exe - 1ccApp.exe
   • CCEVTMGR.EXE - 1CCEVTMGR.EXE
   • ccl30.dll - 1ccl30.dll
   • CCSETMGR.EXE - 1CCSETMGR.EXE
   • ccvrtrst.dll - 1ccvrtrst.dll
   • ClamTray.exe - 1ClamTray.exe
   • ClamWin.exe - 1ClamWin.exe
   • CMGrdian.exe - 1CMGrdian.exe
   • D2htls32.dll - 1D2htls32.dll
   • drwadins.exe - 1drwadins.exe
   • drweb32w.exe - 1drweb32w.exe
   • drwebscd.exe - 1drwebscd.exe
   • drwebupw.exe - 1drwebupw.exe
   • FFJMPWEB.DLL - 1FFJMPWEB.DLL
   • freshclam.exe - 1freshclam.exe
   • GUARDEVT.DLL - 1GUARDEVT.DLL
   • GUARDGUI.EXE - 1GUARDGUI.EXE
   • GUARDMSG.DLL - 1GUARDMSG.DLL
   • GuardNT.exe - 1GuardNT.exe
   • IksysT32.dll - 1IksysT32.dll
   • INETUPD.EXE - 1INETUPD.EXE
   • InocIT.exe - 1InocIT.exe
   • InoOEM.dll - 1InoOEM.dll
   • InoOption.dll - 1InoOption.dll
   • InoUpTNG.exe - 1InoUpTNG.exe
   • isafe.exe - 1isafe.exe
   • KAV.exe - 1KAV.exe
   • kavmm.exe - 1kavmm.exe
   • KAVPF.exe - 1KAVPF.exe
   • LUALL.EXE - 1LUALL.EXE
   • LUINSDLL.DLL - 1LUINSDLL.DLL
   • Luupdate.exe - 1Luupdate.exe
   • Mcshield.exe - 1Mcshield.exe
   • NAVAPSVC.EXE - 1NAVAPSVC.EXE
   • nod32.exe - 1nod32.exe
   • nod32api.dll - 1nod32api.dll
   • nod32kui.exe - 1nod32kui.exe
   • NPFMNTOR.EXE - 1NPFMNTOR.EXE
   • npfmsg.exe - 1npfmsg.exe
   • Nvccf0D.dll - 1Nvccf0D.dll
   • Nvcevlog.dll - 1Nvcevlog.dll
   • Nvcod.exe - 1Nvcod.exe
   • Nvcte.exe - 1Nvcte.exe
   • Nvcut.exe - 1Nvcut.exe
   • OCONNDLG.DLL - 1OCONNDLG.DLL
   • OCOOKDLG.DLL - 1OCOOKDLG.DLL
   • outpost.exe - 1outpost.exe
   • pccguide.exe - 1pccguide.exe
   • PcCtlCom.exe - 1PcCtlCom.exe
   • python23.dll - 1python23.dll
   • QHPF.EXE - 1QHPF.EXE
   • Realmon.exe - 1Realmon.exe
   • RuLaunch.exe - 1RuLaunch.exe
   • schface.dll - 1schface.dll
   • SNDSrvc.exe - S1NDSrvc.exe
   • SPBBCSvc.exe - S1PBBCSvc.exe
   • spiderml.exe - s1piderml.exe
   • symlcsvc.exe - s1ymlcsvc.exe
   • T2w32.dll - T12w32.dll
   • Tmntsrv.exe - T1mntsrv.exe
   • TmPfw.exe - Tm1Pfw.exe
   • tmproxy.exe - tm1proxy.exe
   • Up2Date.exe - U1p2Date.exe
   • upgrepl.exe - u1pgrepl.exe
   • Vba32ECM.exe - V1ba32ECM.exe
   • Vba32ifs.exe - V1ba32ifs.exe
   • vba32ldr.exe - v1ba32ldr.exe
   • Vba32PP3.exe - V1ba32PP3.exe
   • vbaifps.dll - vb1aifps.dll
   • vetredir.dll - v1etredir.dll
   • Vshwin32.exe - Vs1hwin32.exe
   • VsStat.exe - Vs1Stat.exe
   • vsvault.dll - vs1vault.dll
   • XT1922.dll - XT11922.dll
   • zatutor.exe - za1tutor.exe
   • zlavscan.dll - zla1vscan.dll
   • zlclient.exe - zl1client.exe
   • zonealarm.exe - zo1nealarm.exe
     
     
8. Stops the following services, and sets their start type to 4 which disables the service:
   
   
   • Ahnlab task Scheduler
   • alerter
   • AlertManger
   • AntiVir Service
   • aswUpdSv
   • Ati HotKey Poller
   • avast! Antivirus
   • AVEService
   • AVExch32Service
   • avg7alrt
   • avg7updsvc
   • AvgCore
   • AvgFsh
   • AvgServ
   • AVIRAMailService
   • AVIRAService
   • avpcc
   • AVUPDService
   • AVWUpSrv
   • AvxIni
   • awhost32
   • backweb client - 4476822
   • BackWeb Client - 7681197
   • backweb client-4476822
   • bdss
   • BlackICE
   • CAISafe
   • ccEvtMgr
   • ccPwdSvc
   • ccSetMgr
   • ccSetMgr.exe
   • DefWatch
   • dvpapi
   • dvpinit
   • F-Secure Gatekeeper Handler Starter
   • fsbwsys
   • fsdfwd
   • FSMA
   • Guard NT
   • InoRpc
   • InoRT
   • InoTask
   • KAVMonitorService
   • kavsvc
   • KLBLMain
   • McAfee Firewall
   • McAfeeFramework
   • McShield
   • McTaskManager
   • mcupdmgr.exe
   • MCVSRte
   • MonSvcNT
   • navapsvc
   • Network Associates Log Service
   • nipsvc
   • NISSERV
   • NISUM
   • NOD32ControlCenter
   • NOD32Service
   • Norman NJeeves
   • Norman Type-R
   • Norman ZANDA
   • Norton Antivirus Server
   • NPFMntor
   • NProtectService
   • NSCTOP
   • nvcoas
   • NVCScheduler
   • nwclntc
   • nwclntd
   • nwclnte
   • nwclntf
   • nwclntg
   • nwclnth
   • NWService
   • Outbreak Manager
   • Outpost Firewall
   • OutpostFirewall
   • PASSRV
   • PAVFNSVR
   • Pavkre
   • PavProt
   • PavPrSrv
   • PAVSRV
   • PCCPFW
   • PersFW
   • PREVSRV
   • PSIMSVC
   • ravmon8
   • SAVFMSE
   • SAVScan
   • SBService
   • schscnt
   • SharedAccess
   • SmcService
   • SNDSrvc
   • SPBBCSvc
   • SpiderNT
   • SweepNet
   • SWEEPSRV.SYS
   • Symantec AntiVirus Client
   • Symantec Core LC
   • Tmntsrv
   • V3MonNT
   • V3MonSvc
   • Vba32ECM
   • Vba32ifs
   • Vba32Ldr
   • Vba32PP3
   • VexiraAntivirus
   • VisNetic AntiVirus Plug-in
   • vsmon
   • vsserv
   • wuauserv
   • xcomm
     
     
9. Checks the following domains, some of which are security related, and may block further connections to them:
   
   193.69.114.12
   212.113.20.69
   213.219.245.4
   213.248.60.121
   216.200.68.152
   62.146.66.181
   63.210.193.12
   84.53.142.22
   84.53.142.6
   ad.doubleclick.net
   ad.fastclick.net
   ads.fastclick.net
   antivir.de
   anti-virus.by
   ar.atwola.com
   atdmt.com
   avast.com
   avira.com
   avp.ch
   avp.com
   avp.ru
   awaps.net
   banner.fastclick.net
   banners.fastclick.net
   bitdefender.com
   bitdefender.ru
   ca.com
   clamav.net
   clamwin.com
   click.atdmt.com
   clicks.atdmt.com
   customer.symantec.com
   database.clamav.net
   dispatch.mcafee.com
   download.ikarus.at
   download.mcafee.com
   download.microsoft.com
   download25.avast.com
   downloadhosting.core.ignum.cz
   downloads.avira.com
   downloads.microsoft.com
   downloads1.kaspersky-labs.com
   downloads2.kaspersky-labs.com
   downloads3.kaspersky-labs.com
   downloads4.kaspersky-labs.com
   downloads-eu1.kaspersky-labs.com
   downloads-us1.kaspersky-labs.com
   downloads-us2.kaspersky-labs.com
   downloads-us3.kaspersky-labs.com
   drweb.com
   drweb.ru
   engine.awaps.net
   esetsoftware.com
   fastclick.net
   files.referats.net
   f-secure.com
   ftp.avp.ch
   ftp.downloads2.kaspersky-labs.com
   ftp.f-secure.com
   ftp.kasperskylab.ru
   ftp.sophos.com
   ftpav.ca.com
   gin.ba.euroweb.sk
   go.microsoft.com
   grisoft.com
   hbedv.com
   ids.kaspersky-labs.com
   ikarus-software.at
   kaspersky.com
   kaspersky.ru
   kaspersky-labs.com
   liveupdate.symantec.com
   liveupdate.symantecliveupdate.com
   mast.mcafee.com
   mcafee.com
   media.fastclick.net
   msdn.microsoft.com
   msk4.drweb.com
   my-etrust.com
   nai.com
   networkassociates.com
   niutwo.norman.no
   office.microsoft.com
   open.by
   pandasoftware.com
   phx.corporate-ir.net
   rads.mcafee.com
   ravantivirus.com
   report.bitdefender.com
   rs02.avast.com
   rs03.avast.com
   rs06.avast.com
   rs07.avast.com
   rs08.avast.com
   rs10.avast.com
   rs11.avast.com
   rs18.avast.com
   rs18.avast.com
   rs20.avast.com
   rs24.avast.com
   secure.nai.com
   securityresponse.symantec.com
   service1.symantec.com
   sm01.avast.com
   sm04.avast.com
   sm05.avast.com
   sm09.avast.com
   sm12.avast.com
   sm13.avast.com
   sm14.avast.com
   sm15.avast.com
   sm16.avast.com
   sm17.avast.com
   sm19.avast.com
   sm21.avast.com
   sm22.avast.com
   sm23.avast.com
   sm25.avast.com
   sophos.com
   spd.atdmt.com
   support.microsoft.com
   symantec.com
   trendmicro.com
   update.symantec.com
   updates.symantec.com
   updates1.kaspersky-labs.com
   updates2.kaspersky-labs.com
   updates3.kaspersky-labs.com
   updates4.kaspersky-labs.com
   updates5.kaspersky-labs.com
   upgrade.bitdefender.com
   us.mcafee.com
   vba32.de
   vil.nai.com
   viruslist.com
   viruslist.ru
   windowsupdate.microsoft.com
   www.antivir.de
   www.anti-virus.by
   www.avast.com
   www.avira.com
   www.avp.ch
   www.avp.com
   www.avp.ru
   www.awaps.net
   www.bitdefender.com
   www.bitdefender.ru
   www.ca.com
   www.ca.com
   www.clamav.net
   www.clamwin.com
   www.drweb.com
   www.fastclick.net
   www.f-secure.com
   www.grisoft.com
   www.hacksoft.com.pe
   www.hbedv.com
   www.kaspersky.com
   www.kaspersky.ru
   www.kaspersky-labs.com
   www.mcafee.com
   www.my-etrust.com
   www.nai.com
   www.networkassociates.com
   www.open.by
   www.pandasoftware.com
   www.ravantivirus.com
   www.sophos.com
   www.symantec.com
   www.trendmicro.com
   www.vba32.de
   www.viruslist.com
   www.viruslist.ru
   www2.eset.com
   www3.ca.com
   zak.avira.com
   

Recommendations

Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

• Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
• 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.
• Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
• Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
• Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
• Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
• If a 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.
• Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
• Isolate compromised computers quickly to prevent threats from spreading further. 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.
• If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
• For further information on the terms used in this document, please refer to the Security Response glossary.