Backdoor:Win32/IRCbot.GX

Posted: October 16, 2012

Threat Metric

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The following fields listed on the Threat Meter containing a specific value, are explained in detail below:

Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.

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Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.

Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.

% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.

Ranking:	8,969
Threat Level:	2/10
Infected PCs:	1,712

First Seen:	October 16, 2012
Last Seen:	September 27, 2023
OS(es) Affected:	Windows

Backdoor:Win32/IRCbot.GX is a backdoor Trojan that propagates via removable drives. Backdoor:Win32/IRCbot.GX allows attackers to gain unauthorized access and control of an infected computer via IRC. Backdoor:Win32/IRCbot.GX logs keystrokes and steals personal information from victims. Once installed, Backdoor:Win32/IRCbot.GX copies itself to the ceratin locations of the corrupted computer system. Backdoor:Win32/IRCbot.GX downloads and executes potentially malicious files and modifies the Windows Registry by adding registry entries. Backdoor:Win32/IRCbot.GX injects a malicious code into several legitimate running processes including notepad.exe, charmap.exe and explorer.exe in order to avoid detection and removal of anti-virus software. Backdoor:Win32/IRCbot.GX may also set an autorun.inf file in the root directory of the affected drive, which contains execution instructions for the operating system, so that when the removable drive is accessed from another PC, which supports the Autorun feature, Backdoor:Win32/IRCbot.GX is run automatically.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:

C:\Documents and Settings\<username>\application data\iygdzez\iygdzez.exe

File name: C:\Documents and Settings\<username>\application data\iygdzez\iygdzez.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

C:\Documents and Settings\<username>\local settings\temp\iygdzez.exe

File name: C:\Documents and Settings\<username>\local settings\temp\iygdzez.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

<targeted drive>:\showfiles.exe

File name: <targeted drive>:\showfiles.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

<targeted drive>:\..lnk

File name: <targeted drive>:\..lnk
File type: Shortcut
Mime Type: unknown/lnk
Group: Malware file

<targeted drive>:\subst.lnk

File name: <targeted drive>:\subst.lnk
Mime Type: unknown/lnk
Group: Malware file

autorun.inf

File name: autorun.inf
Mime Type: unknown/inf
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\{Value}HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List = "C:\Documents and Settings\Administrator\Application Data\IyGdZEZ\IyGdZEZ.exe" = "c:\documents and settings\administrHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List = "C:\Documents and Settings\Administrator\Application Data\IyGdZEZ\IyGdZEZ.exe"

Additional Information

The following URL's were detected:

trymsg.com