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Asıl adı WORM_VB.DAK imiş.
Upon execution, this worm drops copies of itself as ALGSRVS.EXE and MSFUN80.EXE in the Windows system folder. It also drops a copy of itself as MSIME82.EXE in the Windows folder. The attributes of the dropped files are set to Hidden and System. It then creates the following registry entries to ensure automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
IMJPMIG8.2 = "msime82.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
MsServer = "msfun80.exe"
This worm drops copies of itself in all removable drives using the file name, FUN.XLS.EXE.
It drops an AUTORUN.INF file to automatically execute dropped copies when the drives are accessed. The said file contains the following strings:
[AutoRun]
open=fun.xls.exe
shellexecute=fun.xls.exe
shell\Auto\command=fun.xls.exe
shell=Auto
[VVflagRun]
aabb=kdkfjdkfk1
This worm runs on Windows 98, ME, NT, 2000, XP, and Server 2003.
Yapılacaklar:
Terminating the Malware Program
This procedure terminates the running malware process.
Open Windows Task Manager.
• On Windows 98 and ME, press
CTRL+ALT+DELETE
• On Windows NT, 2000, XP, and Server 2003, press
CTRL+SHIFT+ESC, then click the Processes tab.
In the list of running programs*, locate the processes:
algsrvs.exe
fun.xls.exe
msfun80.exe
msime82.exe
Select the malware process(es), then press either the End Task or the End Process button, depending on the version of Windows on your computer.
To check if the malware process has been terminated, close Task Manager, and then open it again.
Close Task Manager.
*NOTE: On computers running Windows 98 and ME, Windows Task Manager may not show certain processes. You can use a third party process viewer such as Process Explorer to terminate the malware process.
On computers running all Windows platforms, if the process you are looking for is not in the list displayed by Task Manager or Process Explorer, continue with the next solution procedure, noting additional instructions. If the malware process is in the list displayed by either Task Manager or Process Explorer, but you are unable to terminate it, restart your computer in safe mode.
Editing the Registry
This malware modifies the computer's registry. Users affected by this malware may need to modify or delete specific registry keys or entries. For detailed information regarding registry editing, please refer to the following articles from Microsoft:
HOW TO: Backup, Edit, and Restore the Registry in Windows 95, Windows 98, and Windows ME
HOW TO: Backup, Edit, and Restore the Registry in Windows NT 4.0
HOW TO: Backup, Edit, and Restore the Registry in Windows 2000
HOW TO: Back Up, Edit, and Restore the Registry in Windows XP and Server 2003
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.
Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>
Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
IMJPMIG8.2 = "msime82.exe"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>
Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
MsServer = "msfun80.exe"
Close Registry Editor.
Deleting AUTORUN.INF
Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
In the Named input box, type:
AUTORUN.INF
In the Look In drop-down list, select My Computer, then press Enter.
Once located, select the file and open it using Notepad.
Check if the following strings are present:
[AutoRun]
open=fun.xls.exe
shellexecute=fun.xls.exe
shell\Auto\command=fun.xls.exe
shell=Auto
[VVflagRun]
aabb=kdkfjdkfk1
Close AUTORUN.INF and delete it by first selecting the said file and pressing SHIFT+DELETE.
Important Windows ME/XP Cleaning Instructions
Users running Windows ME and XP must disable System Restore to allow full scanning of infected computers.
Users running other Windows versions can proceed with the succeeding solution set(s).
Running Trend Micro Antivirus
If you are currently running in safe mode, please restart your computer normally before performing the following solution.
Scan your computer with Trend Micro antivirus and delete files detected as WORM_VB.DAK. To do this, Trend Micro customers must download the latest virus pattern file and scan their computer. Other Internet users can use HouseCall, the Trend Micro online virus scanner.
