An antivirus program named Microsoft Defender Antivirus can detect and remove a computer infection known as Trojan:MSIL/IRCBot!MSR. Other security systems may detect this Trojan as well, albeit under a different name.


The user must eliminate the computer virus Trojan:MSIL/IRCBot!MSR as soon as possible. Ignoring this risk may result in further problems and difficulties. Using this Trojan, attackers can launch a variety of malicious programs on the targeted machine.

How to remove Trojan:MSIL/IRCBot!MSR?

When the antivirus program detects Trojan:MSIL/IRCBot!MSR on the computer, users must act promptly to alleviate their concerns. Only reliable and efficient security technologies, such as anti-virus and anti-malware, should be used to completely scan the infected machine. Please download and use the following tools to begin the scanning process:

  • Combo Cleaner for Windows
    This software combines both antivirus and system optimization features. The special method it uses to combat computer viruses and maintaining the health of the system is the selling point of this program.
  • Windows Defender/Windows Security (Windows 8 and 10/11)
    This built-in security software for Windows provides the latest antivirus protection. Because the program is integrated in the system, it runs immediately and begins protecting the computer the moment that Windows starts.
  • Microsoft Security Essentials (Windows 7 and Vista)
    Users of Microsoft Windows Vista or older versions can freely scan the computer for viruses and malware using this efficient security application.

The virus scan should be run in full mode. This is the best method to detect Trojan:MSIL/IRCBot!MSR or any relevant viruses from the computer. We also suggest running a full scan after disabling the System Restore to avoid reinstating the virus just in case that this feature is compromised.


The instructions for removing Trojan:MSIL/IRCBot!MSR will require the computer to restart and run in Safe Mode; as such, you may not be able to access this guide during the process. We recommend Printing this procedure or viewing this page on another device.

1. Before running any virus scan, please make sure to disable System Restore on your Windows system.

Image of Disabling System Protection

2. Next, we need to start Windows in Safe Mode with Networking. This will prevent the malicious code from running.

Image of Startup Settings

3. After booting up the computer in Safe Mode with Networking, please download and scan the computer with the recommended anti-virus program as stated above.

CC for Windows Start Scan

4. There is no harm in checking the computer with multiple virus scanners to ensure that Trojan:MSIL/IRCBot!MSR is completely eliminated.

For more help

The Trojan:MSIL/IRCBot!MSR threat family has produced a number of threats. Please browse the Trojan category to see relevant threats and efficient removal strategies.

You may also submit a comment below or start a discussion topic on our Adware, Malware, and Virus Problems Community Page.

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