Welcome to the Virus Encyclopedia of Panda Security.
It allows to get into the affected computer.
It uses the infected computer to take malicious actions on other users.
It carries out actions that decrease the security level of the computer.
It downloads files from several websites.
It uses stealth techniques to avoid being detected by the user.
, across the Internet.
|First detected on:||April 28, 2006|
|Detection updated on:||April 28, 2006|
GrayBird.FW is a Trojan, which although seemingly inoffensive, can actually carry out attacks and intrusions.
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.
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 changes system permissions, decreasing the security level.
GrayBird.FW accesses several websites to download files, which it then runs. These can be any type of file, although they are normally malware.
It uses stealth techniques to avoid being detected by the user:
- It injects itself in running processes.
- It deletes the original file from which it was run once it is installed on the computer.
- It modifies system permissions in order to hide itself.
GrayBird.FW 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.