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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Muhi.A

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Muhi.A
Technical name:W32/Muhi.A.worm
Threat level:Medium
Alias:Trojan-Downloader.Win32.VB.ara,Win32.Worm.Humi.A,WORM_BADAL.A,
Type:Worm
Effects:  

It ends the processes belonging to most of the antivirus programs, leaving the computer vulnerable against the attack of malware. It disables several functions, such as the Windows Security Center and the Folder Options from the Windows Explorer. It spreads through shared resources, mapped drives and removable devices.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:Feb. 25, 2007
Detection updated on:Feb. 25, 2007
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Muhi.A is a worm that ends the processes belonging to most of the antivirus programs, leaving the computer vulnerable against the attack of malware.

Additionally, it disables several functions, such as the Folder Options from the Windows Explorer and the Windows Security Center, which means that the messages warning of the deactivation of the firewall, antivirus programs or automatic updates would not be displayed.

Muhi.A spreads by copying itself in the shared resources, mapped drives and removable devices.

Visible Symptoms 

    

Muhi.A is difficult to recognize, as it does not display any messages or warnings that indicate it has reached the computer.