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.

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

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.

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