Welcome to the Virus Encyclopedia of Panda Security.
It uses the LSASS vulnerability, among other means, in order to spread to as many computers as possible. It logs keystrokes, obtains confidential information on the affected computer, runs files, etc.
|First detected on:||Feb. 14, 2005|
|Detection updated on:||Feb. 14, 2005|
|Yes, using TruPrevent Technologies
Gaobot.CYX is a worm with backdoor characteristics that belongs to the Gaobot worm family. This family has the following common characteristics:
- It affects Windows 2003/XP/2000/NT computers only, as it attempts to exploit the LSASS vulnerability to spread to as many computers as possible. This vulnerability only affect the operating systems mentioned above.
- It spreads by attempting to copy itself to network shared resources it accesses.
- Once it is run, it connects to a specified IRC server and waits for control commands. As a backdoor, it allows to obtain information on the affected computer, run and download files, launch distributed denial of service (DDoS) attacks, upload files by FTP, etc.
In addition, certain variants of Gaobot:
- Take advantage of the backdoors opened by the worms Bagle.A and Mydoom.A, in order to spread to those computers affected by these worms.
- End processes belonging to antivirus programs, firewalls and system monitoring tools, among others. This leaves the affected computer vulnerable to the attack of other viruses or worms.
- End the processes belonging to Nachi.A, Autorooter.A, Sobig.F and several variants of Blaster.
If you have a Windows 2003/XP/2000/NT computer, it is highly recommendable to download the security patch for the LSASS vulnerability from the Microsoft website.
Gaobot.CYX is difficult to recognize, as it does not display any messages or warnings that indicate it has reached the computer.
However, the executable file of the worm has the same icon as a RAR self-extracting file.