How to remove the Milum Remote Access Trojan (RAT)

Also Known As: Milum remote access trojan
Type: Trojan
Damage level: Severe

What is Milum RAT?

Milum is a Remote Access Trojan (RAT). Malware within this category allows cyber criminals remote access and control over the infected machine. Trojans of this type are highly dangerous and have varied capabilities, which can be used to cause especially serious issues.

Milum RAT has been observed targeting industrial organizations and similar entities in the Middle East. Additionally, during research it was noted that this malware was primarily used to gather data.

Milum malware detection on VirusTotal

Milum RAT can receive commands from a C&C (command and control ) server controlled by cyber criminals - this allows a certain level of control over the infected system. It can also send command status and result reports. This malware has data exfiltration capabilities and, as mentioned, Milum has been mainly employed for this purpose.

Milum can learn information relating to the system such as operating system version, network and user account names, anti-virus and similar security products that are installed, etc. This RAT can collect information relating to various files (e.g. system, hidden, read-only, etc.), which are stored on the device.

The gathered data is then sent to the C&C server. The misuse and issues caused depend on the nature of the stolen information itself and the modus operandi of the cyber criminals using remote access tools such as Milum.

For example, when leveraged against organizations, institutions, businesses and similar, the collected data can be held for ransom, under the threat of being leaked/sold to competitors or simply publicized. Ransom/blackmail models can also be employed by non-technical users, if the obtained information is particularly compromising and/or sensitive.

Furthermore, the information can be used to tailor malicious scams, most likely to entrap people. Furthermore, Milum RAT has the capability to update itself, hence the potential for its list of features to grow. If Milum (or other malware) has already infected the system, you are strongly advised to use anti-virus software to remove it immediately.

Threat Summary:
Name Milum remote access trojan
Threat Type Trojan, password-stealing virus, banking malware, spyware.
Detection Names Avast (Win32:Trojan-gen), BitDefender (Trojan.GenericKD.41867329), ESET-NOD32 (A Variant Of Win32/Agent.AAQQ), Kaspersky (Backdoor.Win32.Agent.mytpug), Full List (VirusTotal)
Malicious Process Name(s) Milum46_Win32.exe (process name may vary)
Symptoms Trojans are designed to stealthily infiltrate the victim's computer and remain silent, and thus no particular symptoms are clearly visible on an infected machine.
Distribution methods Infected email attachments, malicious online advertisements, social engineering, software 'cracks'.
Damage Stolen passwords and banking information, identity theft, the victim's computer added to a botnet.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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BlackNETPlugXKoadic and Xtreme are some examples of other RATs.

These malicious programs have various dangerous capabilities such as control/management of installed software, connected hardware (e.g. webcams, microphones, etc.) and of the infected system itself: keylogging; data exfiltration and infiltration (the latter can be used to cause chain infections - i.e., to download/install trojans, ransomware, cryptominers and other malware), and so on.

While they operate differently, these programs have just one purpose: to generate revenue for the cyber criminals behind them.

How did Milum infiltrate my computer?

Malware spreads in various ways, primarily via 'backdoor' Trojans, spam campaigns, illegal activation tools ("cracks"), fake updates and untrusted download sources. Some trojan-types download/install additional malicious programs. The term "spam campaign" defines large scale operations, during which thousands of deceptive/scam emails are sent.

They are disguised as "official", "important", "urgent" or otherwise priority mail. These messages have infectious files attached or, alternatively, include download links of malicious software. Infectious files can be Microsoft Office and PDF documents, archive (ZIP, RAR) and executable (.exe, .run) files, JavaScript and so on.

When these files are opened, the infection process is triggered. Rather than activating licensed products, illegal activation ("cracking") tools can download/install malicious programs. Fake updaters infect systems by exploiting flaws of outdated products and/or simply by installing malware rather than the promised updates.

Untrustworthy download channels such as unofficial and free file-hosting sites, Peer-to-Peer sharing networks (BitTorrent, eMule, Gnutella, etc.) and other third party downloaders can offer malicious content for download, presented as or bundled with normal products.

How to avoid installation of malware

Suspicious or irrelevant emails should not be opened, especially those with attachments or links present within them, as this can result in high-risk infection. Use official and verified download sources. Activate and update products with tools/functions provided by genuine developers.

Illegal activation tools ("cracks") and third party updaters should be avoided, since they are often used to proliferate malicious programs. To protect device integrity and user safety, it is crucial to have a reputable anti-virus/anti-spyware suite installed. This software must be kept up to date, used to run regular systems scans and to remove detected/potential threats.

If you believe that your computer is already infected, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Screenshot of Milum RAT process in Windows Task Manager ("Milum46_Win32.exe" - its process name might vary):

Milum remote access trojan process on task manager (Milum46_Win32.exe; process name may vary)

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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How to remove malware manually?

Manual malware removal is a complicated task - usually it is best to allow antivirus or anti-malware programs to do this automatically.

To remove this malware we recommend using Combo Cleaner Antivirus for Windows. If you wish to remove malware manually, the first step is to identify the name of the malware that you are trying to remove. Here is an example of a suspicious program running on a user's computer:

malicious process running on user's computer sample

If you checked the list of programs running on your computer, for example, using task manager, and identified a program that looks suspicious, you should continue with these steps:

manual malware removal step 1Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:

screenshot of autoruns application

manual malware removal step 2Restart your computer into Safe Mode:

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup.

Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button.

In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":


manual malware removal step 3Extract the downloaded archive and run the Autoruns.exe file.

extract autoruns.zip and run autoruns.exe

manual malware removal step 4In the Autoruns application, click "Options" at the top and uncheck "Hide Empty Locations" and "Hide Windows Entries" options. After this procedure, click the "Refresh" icon.

Click 'Options' at the top and uncheck 'Hide Empty Locations' and 'Hide Windows Entries' options

manual malware removal step 5Check the list provided by the Autoruns application and locate the malware file that you want to eliminate.

You should write down its full path and name. Note that some malware hides process names under legitimate Windows process names. At this stage, it is very important to avoid removing system files. After you locate the suspicious program you wish to remove, right click your mouse over its name and choose "Delete".

locate the malware file you want to remove

After removing the malware through the Autoruns application (this ensures that the malware will not run automatically on the next system startup), you should search for the malware name on your computer. Be sure to enable hidden files and folders before proceeding. If you find the filename of the malware, be sure to remove it.

searching for malware file on your computer

Reboot your computer in normal mode. Following these steps should remove any malware from your computer. Note that manual threat removal requires advanced computer skills. If you do not have these skills, leave malware removal to antivirus and anti-malware programs.

These steps might not work with advanced malware infections. As always it is best to prevent infection than try to remove malware later. To keep your computer safe, install the latest operating system updates and use antivirus software.

To be sure your computer is free of malware infections, we recommend scanning it with Combo Cleaner Antivirus for Windows.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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