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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Tobecho.A

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Tobecho.A
Technical name:W32/Tobecho.A.worm
Threat level:Low
Alias:WORM_CHOD.A
Type:Worm
Effects:  

It opens a port in the affected computer and receives remote control commands. It installs two password stealer type Trojans, prevents the user from connecting to web pages belonging to antivirus and security companies, and finishes some proccesses and services. It spreads via e-mail and MSN Messenger.

Affected platforms:

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

First detected on:March 14, 2005
Detection updated on:March 14, 2005
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Tobecho.A is a worm that opens a port in the affected computer, and listens to it, acting as a backdoor. This worm receives remote control commands, such as restarting the system, downloading files, stealing information in the affected computer, etc.

Tobecho.A installs two password stealer type Trojans.

In addition to this, this worm prevents the user from connecting to some web pages, which belong to antivirus and security companies. It also ends some processes, such as several variants of the worms Netsky, Bagle and Blaster.

Finally, Tobecho.A modifies the settings of the affected computer, preventing users from running the Windows Registry Editor and disabling remote administration of the computer.

Tobecho.A spreads via e-mail and the instant messaging program MSN Messenger.

Visible Symptoms 

    

Tobecho.A is easy to recognize, as it displays an error message on screen once it is run: