WORM_IVRUAT.B
Windows
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
Arrival Details
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This worm creates the following folders:
- %System Root%/winrun
- %System Root%/sysdrivers
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Autostart Technique
This worm adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exe "
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe "
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeâ"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x0C)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x14)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe "
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exe_CHAR(0x0C)__CHAR(0x01)_ÐA"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exeA"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x0C)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeº"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe\winru_CHAR(0x0E)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exe_CHAR(0x0E)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exesdrivers\sysdrv.ex_CHAR(0x1D)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exeº"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exe_CHAR(0x08)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exenrun\winru_CHAR(0x1D)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exenrun\winru_CHAR(0x12)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe\winru_CHAR(0x0E)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exee"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exesdrivers\s_CHAR(0x07)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeex_CHAR(0x07)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exeã"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exen"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exeve0Ϻ"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exevers\sysdrv.ex"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exenrun\winru_CHAR(0x06)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exe_CHAR(0x0C)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexeº"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exenr_CHAR(0x07)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x14)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexevers\sysdrv.ex"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe\winru_CHAR(0x06)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexeA"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x0B)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe!"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x0B)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe!"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exei"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexei"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exe_CHAR(0x08)__CHAR(0x01)_¨&ã"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexeã"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exeB"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exevers\s_CHAR(0x05)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x1D)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe\winru_CHAR(0x07)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exe_CHAR(0x01)__CHAR(0x10)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exesdrivers\sysdrv.ex_CHAR(0x0F)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exesdrivers\sysdrv.ex "
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exenrun\winru "
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x10)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exep"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x0E)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeT"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exey"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exee"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exevers\s_CHAR(0x03)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x0E)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exer"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exep"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x12)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexevers\s_CHAR(0x03)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexep"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeu"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexee"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x12)_"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexer"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
drivers = "%System Root%\sysdrivers\sysdrv.exe1"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
arun = "%System Root%\winrun\winrun.exeexe1"
Dropping Routine
This worm drops the following files:
- %System Root%/winrun/winrun.exe
- %System Root%/sysdrivers/sysdrv.exe
- %System Root%/DOCUME~1/Wilbert/LOCALS~1/Temp/ExecFile.bat
- build
- A:/arun.exe
- A:/AUTORUN.INF
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Other Details
This worm connects to the following possibly malicious URL:
- {BLOCKED}9.144.229
- {BLOCKED}8.1.28
This report is generated via an automated analysis system.
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
Restart in Safe Mode
Step 3
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exe "
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe "
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeâ"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x0C)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x14)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe "
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exe_CHAR(0x0C)__CHAR(0x01)_ÐA"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exeA"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x0C)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeº"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe\winru_CHAR(0x0E)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exe_CHAR(0x0E)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exesdrivers\sysdrv.ex_CHAR(0x1D)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exeº"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exe_CHAR(0x08)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exenrun\winru_CHAR(0x1D)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exenrun\winru_CHAR(0x12)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe\winru_CHAR(0x0E)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exee"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exesdrivers\s_CHAR(0x07)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeex_CHAR(0x07)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exeã"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exen"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exeve0Ϻ"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exevers\sysdrv.ex"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exenrun\winru_CHAR(0x06)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exe_CHAR(0x0C)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexeº"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exenr_CHAR(0x07)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x14)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexevers\sysdrv.ex"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe\winru_CHAR(0x06)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexeA"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x0B)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe!"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x0B)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe!"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exei"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexei"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exe_CHAR(0x08)__CHAR(0x01)_¨&ã"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexeã"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exeB"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exevers\s_CHAR(0x05)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x1D)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe\winru_CHAR(0x07)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exe_CHAR(0x01)__CHAR(0x10)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exesdrivers\sysdrv.ex_CHAR(0x0F)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exesdrivers\sysdrv.ex "
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exenrun\winru "
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x10)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exep"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x0E)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeT"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exey"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exee"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exevers\s_CHAR(0x03)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x0E)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exer"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exep"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe_CHAR(0x12)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexevers\s_CHAR(0x03)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexep"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeu"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexee"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe_CHAR(0x12)_"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexer"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- drivers = "%System Root%\sysdrivers\sysdrv.exe1"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- arun = "%System Root%\winrun\winrun.exeexe1"
Step 4
Search and delete these components
- %System Root%/winrun/winrun.exe
- %System Root%/sysdrivers/sysdrv.exe
- %System Root%/DOCUME~1/Wilbert/LOCALS~1/Temp/ExecFile.bat
- build
- A:/arun.exe
- A:/AUTORUN.INF
Step 5
Search and delete these folders
- %System Root%/winrun
- %System Root%/sysdrivers
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as WORM_IVRUAT.B. 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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