Tuesday, February 17, 2015

How to remove VBS_WORM (18)

Removal instructions for VBS_WORM (18)

Virustotal scan

Related tutorials with screenshots:

How to Remove a VBS Worm
Ultimate Guide in Removing VBS Worms




Analysis:


Type of file: VBSFile
Description: 
Location: C:\Users\WinXPert\AppData\Local\Temp\
Size: 149785 b
MD5: AD8CABE9349418B56C48CE97D93ACC75

Keys added:
HKLM\SOFTWARE\VBS_WORM (18)

Values added:
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VBS_WORM (18): "wscript.exe //B "C:\Users\WinXPert\AppData\Local\Temp\VBS_WORM (18).vbs""
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VBS_WORM (18): "wscript.exe //B "C:\Users\WinXPert\AppData\Local\Temp\VBS_WORM (18).vbs""
HKLM\SOFTWARE\VBS_WORM (18)\: "false"

Files added:
%Temp%\VBS_WORM (18).vbs
%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\VBS_WORM (18).vbs
F:\VBS_WORM (18).VBS
F:\File.lnk
F:\Folder.lnk

Files [attributes?] modified:
F:\File.lnk
F:\Folder.lnk

Manual Removal Instructions for VBS_WORM (18):


If your computer does not have an up-to-date antivirus, or does not have an antivirus solution at all, follow the instructions below to delete the malicious program:

Make sure you create a System Restore point before proceeding:

1.  Use Task Manager to terminate the malicious process wscript.exe.

2.  Delete the VBS_WORM (18).VBS from these locations.

%Temp%
Startup folder  
 Root directory of USB drives

 Tutorial :  How to delete startup entries

3.  Repair the registry using this reg script.  Note that registry key VBS_WORM (18) is random and takes the filename of the vbs file.

Windows Registry Editor Version 5.00

;AD8CABE9349418B56C48CE97D93ACC75
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"VBS_WORM (18)"=-
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"VBS_WORM (18)"=-
[-HKEY_LOCAL_MACHINE\SOFTWARE\VBS_WORM (18)]

4.  Delete all *.lnk located at the root directory of your external drives.  Replace DRIVE with the correct drive letter assignment of your external drives.

DEL DRIVE:\*.LNK

5.  Unhide all hidden files and folders using this commands:  Replace DRIVE with the correct drive letter assignment of your external drives.

ATTRIB DRIVE:\*.* -S -H /S /D

6.  Update your antivirus program and perform a full scan of the computer.


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