Virus Encyclopedia
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Gaobot.NMC | |
Threat Level Damage Distribution |
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Common name: | Gaobot.NMC |
Technical name: | W32/Gaobot.NMC.worm |
Threat level: | Medium |
Type: | Worm |
Effects: |
It spreads and affects other computers.
It searches for and steals passwords saved for certain Windows services.
It affects the productivity of the computer, the network to which it’s connected or other remote sites.
It carries out actions that decrease the security level of the computer.
It uses stealth techniques to avoid being detected by the user.
It uses anti-monitoring techniques in order to prevent it being detected by antivirus companies.
It spreads
by exploiting vulnerabilities, across the Internet.
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Affected platforms:
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Windows 2003/XP/2000/NT/ME/98/95 |
First detected on: | June 21, 2006 |
Detection updated on: | June 21, 2006 |
Statistics | No |
Proactive protection: | Yes, using TruPrevent Technologies
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Brief Description | |
Gaobot.NMC is a worm that spreads by copying itself, without infecting other files. It captures certain information entered or saved by the user, with the corresponding threat to privacy:
passwords saved by certain Windows services. It affects productivity, preventing tasks from being carried out: - In the affected computer:
it converts the computer into a platform for taking malicious action surreptitiously: spam sending, launch of Denial of Service attacks, malware distribution, etc.
- In the local network:
it generates a large amount of network activity and consumes bandwidth.
It reduces the security level of the computer:
it opens one or more ports to allow remote access to the computer and takes action that compromises user confidentiality; it awaits remote-control orders received through
IRC; it changes system permissions, decreasing the security level. It uses stealth techniques to avoid being detected by the user: - It uses techniques included in its code to hide itself while it is active.
It uses several methods in order to avoid detection by antivirus companies: - It terminates its own execution if it detects that a debugging program is active.
Gaobot.NMC 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.
- Via Internet, exploiting remote vulnerabilities: attacking random IP addresses, in which it tries to insert a copy of itself by exploiting one or more vulnerabilities.
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