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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Nuwar.A

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Nuwar.A
Technical name:W32/Nuwar.A.worm
Threat level:Medium
Alias:W32/Tagen.A Email-Worm.Win32.Glowa.g
Type:Worm
Effects:  

It ends processes belonging to several security tools, leaving the computer defenseless against the attack of other malware, and drops a file into the affected computer. It spreads via email.

Affected platforms:

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

First detected on:Oct. 31, 2006
Detection updated on:May 7, 2007
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Nuwar.A is a worm that ends processes with a name containing certain text strings, if they are active. These processes belong to several security tools, such as antivirus programs and firewalls, among others.

Additionally, it drops a file into the affected computer that is used to update and configure Nuwar.A.

In Windows XP computers, Mytob.ML disables the Internet Connection Firewall (ICF) and the Internet Connection Sharing (ICS).

Nuwar.A spreads via email in a message with variable characteristics.

Visible Symptoms 

    

Nuwar.A is easy to recognize, as it reaches the computer in an email message with the following characteristics:

  • Subject: one of the following:
    ATTN
    ATTN TO EVERYBODY!
    Incredible news!
    NEWS
    READ AND RESEND ASAP
    URG
    URGENT NEWS
    White house news!
  • Message: one of the following:
    Message 1
    3rd Glogal War Just Started!!! Read more in file!

    Message 2
    GLOBAL NUCLEAR WAR JUST STARTED! News in file.

    Message 3
    Nuclear War in Russia! Read news in file!

    Message 4
    Nuclear WAR in USA! Read attached file!

    Message 5
    President Bush DEAD! Read attached file!

    Message 6
    President Putin dead! Read more in attached file!

    Message 7
    Putin and Bush starts NUCLEAR WAR! Check the file!
  • Attachments: one of the following:
    A.EXE
    ABOUT ME.EXE
    LAST.EXE
    LATEST NEWS.EXE
    NEVER.EXE
    OPEN.EXE
    READ ME.EXE
    TRUTH.EXE
    WAR.EXE