BKDR_PRORAT.BL
Backdoor:Win32/Prorat.AH(Microsoft), Backdoor.Win32.Prorat(Ikarus), Win32/Prorat.NAH trojan(Eset)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Backdoor
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This backdoor may be dropped by other malware.
It executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.
TECHNICAL DETAILS
Arrival Details
This backdoor may be dropped by the following malware:
- WORM_AUTORUN.RJG
Installation
This backdoor drops the following files:
- %System%\reginv.dll - already detected as BKDR_PRORAT.BL
- %System%\winkey.dll - already detected as BKDR_PRORAT.BL
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It drops and executes the following files:
- %Windows%\services.exe
(Note: %Windows% is the Windows folder, which is usually C:\Windows.)
It drops the following copies of itself into the affected system:
- %System%\sservice.exe
- %System%\fservice.exe
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
Autostart Technique
This backdoor adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
csrss.exe = "%Windows%\ctfmon.exe"
Other System Modifications
This backdoor adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Active Setup\Installed Components\{random}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Explorer
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Explorer\Run
HKEY_CURRENT_USER\Software\Microsoft\
Windows NT Script Host
HKEY_CURRENT_USER\Software\Microsoft\
Windows NT Script Host\Microsoft DxDiag
HKEY_CURRENT_USER\Software\Microsoft\
Windows NT Script Host\Microsoft DxDiag\WinSettings
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\DisallowRun
HKEY_CURRENT_USER\Software\Policies\
Microsoft\Windows
HKEY_CURRENT_USER\Software\Policies\
Microsoft\Windows\System
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Active Setup\Installed Components\{random}
StubPath = "%System%\sservice.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Explorer\Run
DirectX For Microsoft Windows = "%System%\fservice.exe"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\wscsvc
DependOnGroup = 0
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\wscsvc
Group = {null}
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableRegistryTools = 1
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
DisallowRun = 1
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\DisallowRun
1 = "ntbackup.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\DisallowRun
2 = "Regedit.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\DisallowRun
3 = "rstrui.exe"
HKEY_CURRENT_USER\Software\Policies\
Microsoft\Windows\System
DisableCMD = 1
It modifies the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced
HideFileExt = 1
(Note: The default value data of the said registry entry is 0.)
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced
ShowSuperHidden = 2
(Note: The default value data of the said registry entry is 1.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced\Folder\HideFileExt
Type = "By Rover"
(Note: The default value data of the said registry entry is checkbox.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced\Folder\SuperHidden
Type = "By Rover"
(Note: The default value data of the said registry entry is checkbox.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\SystemRestore
DisableSR = 1
(Note: The default value data of the said registry entry is 0.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
Shell = "Explorer.exe %System%\fservice.exe"
(Note: The default value data of the said registry entry is Explorer.exe.)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sr
Start = 4
(Note: The default value data of the said registry entry is 0.)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sr
ImagePath = "\SystemRoot\system32\DRIVERS\sr.sys"
(Note: The default value data of the said registry entry is system32\DRIVERS\sr.sys.)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sr\Parameters
FirstRun = 1
(Note: The default value data of the said registry entry is 0.)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\srservice
Start = 4
(Note: The default value data of the said registry entry is 2.)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\wscsvc
Start = 4
(Note: The default value data of the said registry entry is 2.)
Backdoor Routine
This backdoor executes the following commands from a remote malicious user:
- Format Drives (C:\ and D:\)
- Start or stop service
- List directory
- Shutdown system
- Open or close CD Drive
- Perform remote shell
- Terminates process
- Download and execute arbitrary files
It connects to the following websites to send and receive information:
- {BLOCKED}.23.237:80/friendship/email_thank_you.php?folder_id={random digit}¶ms_count=0&nick_name=Pro_Rat&user_email=Pro_Rat@yahoo.com&user_uin=&friend_nickname=&friend_contact={random digit}&friend_nickname2=&friend_contact2=&x={random digit}&y={random digit}
Process Termination
This backdoor terminates the following processes if found running in the affected system's memory:
- WATCHDOG.EXE
- WEBSCANX.EXE
- WEBTRAP.EXE
- WGFE95.EXE
- WHOSWATCHINGME.EXE
- WIMMUN32.EXE
- WINRECON.EXE
- WNT.EXE
- WRADMIN.EXE
- WRCTRL.EXE
- WSBGATE.EXE
- WYVERNWORKSFIREWALL.EXE
- WrAdmin.EXE
- WrCtrl.EXE
- XPF202EN.EXE
- ZAPRO.EXE
- ZAPSETUP3001.EXE
- ZATUTOR.EXE
- ZAUINST.EXE
- ZONALM2601.EXE
- ZONEALARM.EXE
- _AVPCC.EXE
- _AVPM.EXE
- agentw.EXE
- apvxdwin.EXE
- avkpop.EXE
- avkservice.EXE
- avkwctl9.EXE
- avpm.EXE
- blackd.EXE
- ccApp.EXE
- ccEvtMgr.EXE
- ccPxySvc.EXE
- cleaner.EXE
- cleaner3.EXE
- cpd.EXE
- defalert.EXE
- defscangui.EXE
- f-stopw.EXE
- fameh32.EXE
- fch32.EXE
- fih32.EXE
- fnrb32.EXE
- fsaa.EXE
- fsav32.EXE
- fsgk32.EXE
- fsm32.EXE
- fsma32.EXE
- fsmb32.EXE
- gbmenu.EXE
- gbpoll.EXE
- iamapp.EXE
- iamserv.EXE
- lockdown2000.EXE
- navapsvc.EXE
- nod32.exe
- ACKWIN32.EXE
- ADVXDWIN.EXE
- AGENTSVR.EXE
- ALERTSVC.EXE
- ALOGSERV.EXE
- AMON9X.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
- AUTOUPDATE.EXE
- AVCONSOL.EXE
- AVGCC32.EXE
- AVGCTRL.EXE
- AVGNT.EXE
- AVGSERV.EXE
- AVGSERV9.EXE
- AVGUARD.EXE
- AVGW.EXE
- AVP.EXE
- AVP32.EXE
- AVPCC.EXE
- AVPM.EXE
- AVSYNMGR.EXE
- AVWINNT.EXE
- AVWUPSRV.EXE
- AVXMONITOR9X.EXE
- AVXMONITORNT.EXE
- AVXQUAR.EXE
- AVXW.EXE
- AckWin32.EXE
- AutoTrace.EXE
- AvgServ.EXE
- Avgctrl.EXE
- AvkServ.EXE
- Avsched32.EXE
- BD_PROFESSIONAL.EXE
- BIDEF.EXE
- BIDSERVER.EXE
- BIPCP.EXE
- BIPCPEVALSETUP.EXE
- BISP.EXE
- BLACKD.EXE
- BLACKICE.EXE
- BOOTWARN.EXE
- BORG2.EXE
- BS120.EXE
- BlackICE.EXE
- CDP.EXE
- CFGWIZ.EXE
- CFIADMIN.EXE
- CFIAUDIT.EXE
- CFINET.EXE
- CFINET32.EXE
- CLAW95CF.EXE
- CLEAN.EXE
- CLEANER.EXE
- CLEANER3.EXE
- CLEANPC.EXE
- CMGRDIAN.EXE
- CMON016.EXE
- CONNECTIONMONITOR.EXE
- CPD.EXE
- CPF9X206.EXE
- CPFNT206.EXE
- CTRL.EXE
- CV.EXE
- CWNB181.EXE
- CWNTDWMO.EXE
- Claw95.EXE
- Claw95cf.EXE
- DEFWATCH.EXE
- DEPUTY.EXE
- DOORS.EXE
- DPF.EXE
- DPFSETUP.EXE
- DRWATSON.EXE
- DRWEB32.EXE
- DVP95.EXE
- DVP95_0.EXE
- EFPEADM.EXE
- ENT.EXE
- ESCANH95.EXE
- ESCANHNT.EXE
- ESCANV95.EXE
- ETRUSTCIPE.EXE
- EVPN.EXE
- EXANTIVIRUS-CNET.EXE
- EXPERT.EXE
- F-AGNT95.EXE
- F-PROT.EXE
- F-PROT95.EXE
- F-STOPW.EXE
- FAST.EXE
- FIREWALL.EXE
- FLOWPROTECTOR.EXE
- FP-WIN.EXE
- FP-WIN_TRIAL.EXE
- FRW.EXE
- FSAV.EXE
- FSAV530STBYB.EXE
- FSAV530WTBYB.EXE
- FSAV95.EXE
- GBMENU.EXE
- GBPOLL.EXE
- GENERICS.EXE
- GUARD.EXE
- GUARDDOG.EXE
- HACKTRACERSETUP.EXE
- HTLOG.EXE
- HWPE.EXE
- IAMAPP.EXE
- IAMSERV.EXE
- IAMSTATS.EXE
- ICLOAD95.EXE
- ICLOADNT.EXE
- ICMON.EXE
- ICSUPP95.EXE
- ICSUPPNT.EXE
- IFACE.EXE
- IFW2000.EXE
- IOMON98.EXE
- IPARMOR.EXE
- IRIS.EXE
- ISRV95.EXE
- JAMMER.EXE
- JEDI.EXE
- KAVLITE40ENG.EXE
- KAVPERS40ENG.EXE
- KAVPF.EXE
- KERIO-PF-213-EN-WIN.EXE
- KERIO-WRL-421-EN-WIN.EXE
- KERIO-WRP-421-EN-WIN.EXE
- KILLPROCESSSETUP161.EXE
- LDNETMON.EXE
- LDPRO.EXE
- LDPROMENU.EXE
- LDSCAN.EXE
- LOCALNET.EXE
- LOCKDOWN.EXE
- LOCKDOWN2000.EXE
- LSETUP.EXE
- LUALL.EXE
- LUAU.EXE
- LUCOMSERVER.EXE
- LUINIT.EXE
- LUSPT.EXE
- MCAGENT.EXE
- MCMNHDLR.EXE
- MCTOOL.EXE
- MCUPDATE.EXE
- MCVSRTE.EXE
- MCVSSHLD.EXE
- MFW2EN.EXE
- MFWENG3.02D30.EXE
- MGAVRTCL.EXE
- MGAVRTE.EXE
- MGHTML.EXE
- MGUI.EXE
- MINILOG.EXE
- MONITOR.EXE
- MOOLIVE.EXE
- MPFAGENT.EXE
- MPFSERVICE.EXE
- MPFTRAY.EXE
- MRFLUX.EXE
- MSCONFIG.EXE
- MSINFO32.EXE
- MSSMMC32.EXE
- MU0311AD.EXE
- MWATCH.EXE
- Mcshield.EXE
- Monitor.EXE
- NAV80TRY.EXE
- NAVAPSVC.EXE
- NAVAPW32.EXE
- NAVDX.EXE
- NAVLU32.EXE
- NAVSTUB.EXE
- NAVW32.EXE
- NAVWNT.EXE
- NC2000.EXE
- NCINST4.EXE
- NDD32.EXE
- NEOMONITOR.EXE
- NETARMOR.EXE
- NETINFO.EXE
- NETMON.EXE
- NETSCANPRO.EXE
- NETSPYHUNTER-1.2.EXE
- NETSTAT.EXE
- NETUTILS.EXE
- NISSERV.EXE
- NISUM.EXE
- NMAIN.EXE
- NORMIST.EXE
- NORTON_INTERNET_SECU_3.0_407.EXE
- NPF40_TW_98_NT_ME_2K.EXE
- NPFMESSENGER.EXE
- NPROTECT.EXE
- NPSSVC.EXE
- NSCHED32.EXE
- NTVDM.EXE
- NTXconfig.EXE
- NVARCH16.EXE
- NVC95.EXE
- NWINST4.EXE
- NWService.EXE
- NWTOOL16.EXE
- Navw32.EXE
- NeoWatchLog.EXE
- Nui.EXE
- Nupgrade.EXE
- OSTRONET.EXE
- OUTPOST.EXE
- OUTPOSTINSTALL.EXE
- OUTPOSTPROINSTALL.EXE
- PADMIN.EXE
- PANIXK.EXE
- PAVPROXY.EXE
- PCC2002S902.EXE
- PCC2K_76_1436.EXE
- PCCIOMON.EXE
- PCCWIN98.EXE
- PCDSETUP.EXE
- PCFWALLICON.EXE
- PCIP10117_0.EXE
- PDSETUP.EXE
- PERISCOPE.EXE
- PERSFW.EXE
- PERSWF.EXE
- PF2.EXE
- PFWADMIN.EXE
- PINGSCAN.EXE
- PLATIN.EXE
- POP3TRAP.EXE
- POPROXY.EXE
- POPSCAN.EXE
- PORTDETECTIVE.EXE
- PORTMONITOR.EXE
- PPINUPDT.EXE
- PPTBC.EXE
- PPVSTOP.EXE
- PROCESSMONITOR.EXE
- PROCEXPLORERV1.0.EXE
- PROGRAMAUDITOR.EXE
- PROPORT.EXE
- PROTECTX.EXE
- PSPF.EXE
- PURGE.EXE
- PVIEW95.EXE
- Process
- QCONSOLE.EXE
- QSERVER.EXE
- RAV7.EXE
- RAV7WIN.EXE
- RAV8WIN32ENG.EXE
- REALMON.EXE
- REGEDIT.EXE
- REGEDT32.EXE
- RESCUE.EXE
- RESCUE32.EXE
- RRGUARD.EXE
- RSHELL.EXE
- RTVSCN95.EXE
- RULAUNCH.EXE
- SAFEWEB.EXE
- SBSERV.EXE
- SCAN32.EXE
- SCRSCAN.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
- SWEEP95.EXE
- SWEEPSRV.SYS
- SWNETSUP.EXE
- SYMPROXYSVC.EXE
- SYMTRAY.EXE
- SYSEDIT.EXE
- Sphinx.EXE
- SweepNet
- SymProxySvc.EXE
- TASKMON.EXE
- TAUMON.EXE
- TC.EXE
- TCA.EXE
- TCM.EXE
- TDS-3.EXE
- TDS2-98.EXE
- TDS2-NT.EXE
- TFAK.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
- VET32.EXE
- VET95.EXE
- nod32krn.exe
- nod32kui.exe
- notstart.EXE
- npscheck.EXE
- ntrtscan.EXE
- nvsvc32.EXE
- pavproxy.EXE
- pccntmon.EXE
- pccwin97.EXE
- pcscan.EXE
- rapapp.EXE
- rtvscan.EXE
- sbserv.EXE
- vbcmserv.EXE
- vshwin32.EXE
- vsmon.EXE
- zapro.EXE
- zonealarm.EXE
- VETTRAY.EXE
- VFSETUP.EXE
- VIR-HELP.EXE
- VIRUSMDPERSONALFIREWALL.EXE
- VNLAN300.EXE
- VNPC3000.EXE
- VPC32.EXE
- VPC42.EXE
- VPFW30S.EXE
- VPTRAY.EXE
- VSCENU6.02D30.EXE
- VSCHED.EXE
- VSECOMR.EXE
- VSISETUP.EXE
- VSMAIN.EXE
- VSMON.EXE
- VSSTAT.EXE
- VSWIN9XE.EXE
- VSWINNTSE.EXE
- VSWINPERSE.EXE
- VbCons.EXE
- Vet95.EXE
- VetTray.EXE
- W32DSM89.EXE
- W9X.EXE
It terminates processes or services that contain any of the following strings if found running in the affected system's memory:
- McVSEscn
- _avp
- ackwin32
- anti-trojan
- aplica32
- apvxdwin
- autodown
- avconsol
- ave32
- avgcc32
- avgctrl
- avgw
- avkserv
- avnt
- avp
- avsched32
- avwin95
- avwupd32
- blackd
- blackice
- bootwarn
- ccapp
- ccshtdwn
- cfiadmin
- cfiaudit
- cfind
- cfinet
- claw95
- ecengine
- efinet32
- espwatch
- f-agnt95
- f-prot
- f-prot95
- f-stopw
- findviru
- fp-win
- fprot
- fprot95
- frw
- gibe
- iamapp
- iamserv
- ibmasn
- ibmavsp
- icload95
- icloadnt
- icmon
- icmoon
- icssuppnt
- icsupp
- iface
- iomon98
- jedi
- kpfw32
- lockdown2000
- lookout
- luall
- mcvsftsn
- mcvsrte
- mcvsshld
- moolive
- mpftray
- msconfig
- nai_vs_stat
- navapw32
- navlu32
- navnt
- navsched
- navw
- nisum
- nmain
- normist
- nupdate
- nupgrade
- nvc95
- outpost
- padmin
- pavcl
- pavsched
- pavw
- pcciomon
- pccmain
- pccwin98
- pcfwallicon
- persfw
- pop3trap
- pview
- rav
- regedit
- rescue
- safeweb
- serv95
- sphinx
- sweep
- tca
- tds2
- vcleaner
- vcontrol
- vet32
- vet95
- vet98
- vettray
- vscan
- vsecomr
- vshwin32
- vsstat
- webtrap
- wfindv32
- zapro
- zonealarm
Stolen Information
This backdoor sends the data it gathers to the following email addresses via SMTP:
- {BLOCKED}at@yahoo.com
SOLUTION
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Remove the malware/grayware file that dropped/downloaded BKDR_PRORAT.BL
- WORM_AUTORUN.RJG
Step 3
Restart in Safe Mode
Step 4
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{random}
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer
- HKEY_CURRENT_USER\Software\Microsoft\Windows NT Script Host\Microsoft DxDiag\WinSettings
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun
- HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows
Step 5
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc
- DependOnGroup = 0
- DependOnGroup = 0
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc
- Group = {null}
- Group = {null}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- csrss.exe = "%Windows%\ctfmon.exe"
- csrss.exe = "%Windows%\ctfmon.exe"
Step 6
Restore this modified registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
- From: HideFileExt = 1
To: HideFileExt = 0
- From: HideFileExt = 1
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
- From: ShowSuperHidden = 2
To: ShowSuperHidden = 1
- From: ShowSuperHidden = 2
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\HideFileExt
- From: Type = "By Rover"
To: Type = checkbox
- From: Type = "By Rover"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\SuperHidden
- From: Type = "By Rover"
To: Type = checkbox
- From: Type = "By Rover"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore
- From: DisableSR = 1
To: DisableSR = 0
- From: DisableSR = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
- From: Shell = "Explorer.exe %System%\fservice.exe"
To: Shell = Explorer.exe
- From: Shell = "Explorer.exe %System%\fservice.exe"
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sr
- From: Start = 4
To: Start = 0
- From: Start = 4
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sr
- From: ImagePath = "\SystemRoot\system32\DRIVERS\sr.sys"
To: ImagePath = system32\DRIVERS\sr.sys
- From: ImagePath = "\SystemRoot\system32\DRIVERS\sr.sys"
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sr\Parameters
- From: FirstRun = 1
To: FirstRun = 0
- From: FirstRun = 1
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\srservice
- From: Start = 4
To: Start = 2
- From: Start = 4
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc
- From: Start = 4
To: Start = 2
- From: Start = 4
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_PRORAT.BL. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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