Virus Database

Raptor.1800.b

Description Raptor.1800.b

This is a relatively harmless, memory resident parasitic virus. This virus hooks INT 21h, and writes itself to the end of EXE files that are loaded into the memory or opened. On the 13th of any month, it hooks INT 1Ch also, and runs itself as a video effect. If the date and month correspond by number (January 1st, February 2nd,all), this virus decrypts and displays a message, then reboots the computer:
The Rotpar virus 1st version
Copyright 13.3.1994 - PHP students Blansko CR
Did you like the red color in the background ? We didn't like it !!
We changed it into blue. The texts were also stupid, so we changed them too !!
Many happy returns in the next version of Rotpar. Thanks !

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Backdoor.RA-based

Description Backdoor.RA-based

This is a typical client-server remote administration utility that allows connection to remote computer(s) in order to manage its (their) system resources in real time (similar to "pcAnywhere" by Symantec). This utility has a "Remote-Anything" name, and it is developed and distributed by the TWD Industries company (http://www.twd-industries.com).
This program is detected and classified as a Backdoor Trojan, because it absolutely meets Backdoor behavior (see Backdoor):
hidden installation to the system
completely hides itself in the system when active
allows to administrate an infected system from a remote host
The server component of this program hides itself in the system and is not visible to the average user unlike other remote administration tools that:
have a standard installation and deinstallation procedures
have any visible interface (an icon in the tray-bar, for instance)
The Server
The server component does not have any visible installaton behavior: when run without any messages, it copies itself (the whole file) to the Windows directory with the SLAVE.EXE name and registers in the system registry in the auto-run section:
[HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRunServices]
"RA Server"="C:\WINDOWS\Slave.exe"
As a result, the server component will be activated by Windows on each restart, and without any notification to a user.
The client
A hacker, by client component, may connect to an infected computer and has control over it: to watch a computer's desktop in real-time; to send commands to infected systems by keyboard and/or mouse; to access a file system; to reboot or shut down the computer.
Removing the Server
To remove the server component from the system, you need to run AVP with the latest updates and let it delete the server. You also need to delete the registry key manually.
You may also manually delete the registry key, reboot the computer and delete the server file SLAVE.EXE in the Windows directory.
You may also use a special removing utility that is distributed by TWD Industries at their Web site.
Important information about this utility:
Beginning with version 3.5.11, TWD Industries has made the following changes:
You can add to your product:

a server component that, during startup communicates what will be installed into the system
while the server component is operating its icon appears in the system tray
there is now a component designed to uninstall the server
Version 3.5.11 and later do not treat harmful programs of the "Backdoor" type.

Backdoor.Rbot.gen

Description Backdoor.Rbot.gen

Backdoor.Rbot is a family of Trojan programs for Windows, which offer the user remote access to victim machines. The Trojans are controlled via IRC, and have the following functions:
monitor networks for interesting data packets (i.e. those containing passwords to FTP servers, and e-payment systems such as PayPal etc.)
scan networks for machines which have unpatched common vulnerabilties (RPC DCOM, UPnP, WebDAV and others); for machines infected by Trojan programs (Backdoor.Optix, Backdoor.NetDevil, Backdoor.SubSeven and others) and by the Trojan components of worms (I-Worm.Mydoom, I-Worm.Bagle); for machines with weak system passwords
conduct DoS attacks
launch SOCKS and HTTP servers on infected machines
send the user of the program detailed information about the victim machine, including passwords to a range of computer games

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