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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Crowt.A

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Crowt.A
Technical name:W32/Crowt.A.worm
Threat level:Low
Alias:Worm.Win32.Cocoazul.e, W32/Crowt.worm, W32/Crowt-A, WORM_CROWT.A
Type:Worm
Effects:  

It opens a backdoor, installs a keylogger and logs information that is then sent via e-mail.

Affected platforms:

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

First detected on:Jan. 24, 2005
Detection updated on:March 17, 2006
StatisticsNo

Brief Description 

    

Crowt.A is a worm that opens a backdoor, which allows to remotely control the affected computer and receive additional commands: download, delete or run files, restart the computer, end processes, etc.

Crowt.A also installs a keylogger, which could be used to reveal personal or confidential information, such as passwords.

On Windows XP/2000/NT computers, Crowt.A hooks certain operating system functions, which enables it to log keystrokes and mouse actions. The logged information is then sent to two different e-mail addresses.

This worm also connects to a certain web page in order to communicate that the computer has been affected.

Additionallly, it deletes all the cookies from the affected computer and opens the web browser and displays a certain website.

Crowt.A spreads via e-mail, in a message that uses the headlines in the CNN website in order to construct its text.

Visible Symptoms 

    

Crowt.A is easy to recognize, as it reaches the computer in an executable file that has the same icon as a WMV file: