BackDoor-IQ

This page shows details and results of our analysis on the malware BackDoor-IQ

Download Current DAT: 6618

Threat Detail

Malware Type: Trojan

Malware Sub-type: Remote Access

Discovery Date: 2005-06-09

Next Steps:

Overview
Characteristics
Symptoms
Method of Infection
Removal

Overview

This is a trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Minimum DAT

4597 (2005-10-05)

Updated DAT

5834 (2009-12-16)

Minimum Engine

5.1.00

File Length

3kb

Description Added

2005-06-09

Description Modified

2005-10-07

Malware Proliferation

Characteristics

Backdoor-IQ alias "Tini" is a simple and very small (3kb) backdoor for Windows, coded in assembler. The default port it listens to is TCP port 7777 although some variants were found to open TCP port 3323. An attacker can connect to this backdoor via a remote Command Prompt and be able to issue commands.

Backdoor-IQ works with Windows 9x, Windows NT, Windows 2000 and XP.

Symptoms

Existence of open TCP ports 7777 and 3323.

Method of Infection

Backdoor-IQ doesn't install itself in any way or create any auto start entries.
If it has been used by an intruder he/she might have installed it to be run automatically on reboot, but that's not a feature in itself.

Removal

All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.

On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.