Virus Encyclopedia
Welcome to the Virus Encyclopedia of Panda Security.
Nuwar.EX | |
Threat Level Damage Distribution |
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| Common name: | Nuwar.EX |
| Technical name: | W32/Nuwar.EX.worm |
| Threat level: | Medium |
| Type: | Worm |
| Effects: |
It spreads and affects other computers.
It affects the productivity of the computer, the network to which it’s connected or other remote sites.
It uses anti-monitoring techniques in order to prevent it being detected by antivirus companies.
It spreads
, via email.
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| Affected platforms:
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Windows 2003/XP/2000/NT/ME/98/95 |
| First detected on: | Aug. 21, 2007 |
| Detection updated on: | Aug. 21, 2007 |
| Statistics | No |
Proactive protection: | Yes, using TruPrevent Technologies
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Brief Description | |
Nuwar.EX is a worm that spreads by copying itself, without infecting other files. It affects productivity, preventing tasks from being carried out: - In the affected computer:
causes system slowdowns.
- In the local network:
it generates a large amount of network activity and consumes bandwidth.
It uses several methods in order to avoid detection by antivirus companies: - It terminates its own execution if it detects that it is being executed in a virtual machine environment, such as VMWare or VirtualPC.
Nuwar.EX uses the following propagation or distribution methods: - Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
- Email: sending emails that include a copy of itself as an attachment. The computer is infected when the attachment is run.
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