Worm:Win32/Vobfus.MD

Posted: December 5, 2012

Threat Metric

The Threat Meter is a malware assessment that SpywareRemove.com's research team is able to give every identifiable malware threat. Our Threat Meter includes several criteria based off of specific malware threats to value their severity, reach and volume. The Threat Meter is able to give you a numerical breakdown of each threat's initial Threat Level, Detection Count, Volume Count, Trend Path and Percentage Impact. The overall ranking of each threat in the Threat Meter is a basic breakdown of how all threats are ranked within our own extensive malware database. The scoring for each specific malware threat can be easily compared to other emerging threats to draw a contrast in its particular severity. The Threat Meter is a useful tool in the endeavor of seeking a solution to remove a threat or pursue additional analytical research for all types of computer users.

The following fields listed on the Threat Meter containing a specific value, are explained in detail below:

Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.

Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.

Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.

Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.

% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.

Ranking:	16,823
Threat Level:	2/10
Infected PCs:	12,045

First Seen:	December 5, 2012
Last Seen:	August 26, 2023
OS(es) Affected:	Windows

Worm:Win32/Vobfus.MD is a worm that proliferates via network and removable drives and downloads other malware threats from a remote server. Once installed, Worm:Win32/Vobfus.MD drops potentially malicious files in the root folders of network and removable drives. Worm:Win32/Vobfus.MD also makes registry modifications. When executed, Worm:Win32/Vobfus.MD downloads a copy of itself as an executable file (.exe). Worm:Win32/Vobfus.MD modifies the certain registry entry to assure that its copy loads every time you start Windows. Worm:Win32/Vobfus.MD replicates itself to the root folder of all available network and removable drives. Worm:Win32/Vobfus.MD also sets an 'autorun.inf' file in the root directory of the affected drive. An 'autorun.inf' file contains instructions for the operating system so that when the removable drive is accessed, Worm:Win32/Vobfus.MD may be executed automatically. Worm:Win32/Vobfus.MD strives to contact the remote server to receive instructions. Worm:Win32/Vobfus.MD modifies computer settings of the infected PC by modifying the certain registry entry to block the display of files that have 'SYSTEM' and 'HIDDEN' attributes. Worm:Win32/Vobfus.MD also modifies the certain registry entry to disable the Automatic Updates feature of your computer.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:

autorun.inf

File name: autorun.inf
Mime Type: unknown/inf
Group: Malware file

zuaixap.exe

File name: zuaixap.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

nuaeku.exe

File name: nuaeku.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

rcx<random>.tmp

File name: rcx<random>.tmp
File type: Temporary File
Mime Type: unknown/tmp
Group: Malware file

rcx11.tmp

File name: rcx11.tmp
File type: Temporary File
Mime Type: unknown/tmp
Group: Malware file

porn.exe

File name: porn.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

sexy.exe

File name: sexy.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

subst.exe

File name: subst.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

passwords.exe

File name: passwords.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

secret.exe

File name: secret.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\{Value}HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced "ShowSuperHidden" = "0"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "peuolig" = "C:\Users\[user name]\peuolig.exe /n"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "[malware file name]" = "%USERPROFILE%\[malware file name] /[random parameter]"HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU "NoAutoUpdate" = "1"

Additional Information

The following URL's were detected:

flewssyzygia.casa