Trojan:Win32/Downloader.AU!MTB

What is Trojan:Win32/Downloader.AU!MTB infection?

In this post you will certainly find regarding the definition of Trojan:Win32/Downloader.AU!MTB and also its negative influence on your computer. Such ransomware are a form of malware that is elaborated by on-line fraudulences to require paying the ransom by a sufferer.

It is better to prevent, than repair and repent!

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Most of the instances, Trojan:Win32/Downloader.AU!MTB virus will advise its victims to launch funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s gadget.

Trojan:Win32/Downloader.AU!MTB Summary

These modifications can be as adheres to:

• Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
• Injection (inter-process);
• Injection (Process Hollowing);
• Attempts to connect to a dead IP:Port (4 unique times);
• Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
• A process attempted to delay the analysis task.;
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
• Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

  Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

• Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
• Performs some HTTP requests;
• The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Uses Windows utilities for basic functionality;
• Executed a process and injected code into it, probably while unpacking;
• Network activity contains more than one unique useragent.;
• Installs itself for autorun at Windows startup.

  There is simple tactic using the Windows startup folder located at:
  C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

  The registry run keys perform the same action, and can be located in different locations:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
• Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
• Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
• Modifies system policies to prevent the launching of specific applications or executables;
• Attempts to disable UAC.

  User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

  UAC includes several technologies ¹:

  • File and egistry Virtualization;
  • Same-desktop Elevation;
  • Filtered Token;
  • User Interface Privilege Isolation;
  • Protected Mode Internet Explorer;
  • Installer Detection;
• Attempts to disable Windows Defender;
• Attempts to modify UAC prompt behavior;
• Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Attempts to modify Explorer settings to prevent hidden files from being displayed;
• Ciphering the documents found on the sufferer’s hard drive — so the sufferer can no longer use the information;
• Preventing normal access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Similar behavior

Related domains

Trojan:Win32/Downloader.AU!MTB

The most regular channels whereby Trojan:Win32/Downloader.AU!MTB Ransomware are injected are:

• By methods of phishing emails;
• As a repercussion of individual ending up on a resource that holds a destructive software;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the sufferer’s PC or avoid the device from working in a proper fashion – while likewise positioning a ransom note that points out the need for the victims to impact the settlement for the objective of decrypting the documents or bring back the file system back to the first condition. In a lot of circumstances, the ransom money note will show up when the client reboots the PC after the system has actually already been harmed.

Trojan:Win32/Downloader.AU!MTB distribution channels.

In various edges of the world, Trojan:Win32/Downloader.AU!MTB expands by leaps and bounds. Nevertheless, the ransom notes and also methods of extorting the ransom amount might vary relying on particular local (local) settings. The ransom money notes as well as tricks of obtaining the ransom money amount might vary depending on specific regional (regional) settings.

For instance:

Faulty signals about unlicensed software.

In certain areas, the Trojans typically wrongfully report having detected some unlicensed applications made it possible for on the target’s device. The sharp then requires the user to pay the ransom.

Faulty statements about prohibited content.

In nations where software program piracy is less prominent, this technique is not as effective for the cyber scams. Alternatively, the Trojan:Win32/Downloader.AU!MTB popup alert may falsely declare to be deriving from a law enforcement establishment as well as will report having located child porn or other prohibited data on the gadget.

Trojan:Win32/Downloader.AU!MTB popup alert may falsely claim to be deriving from a regulation enforcement organization and will certainly report having situated child pornography or various other prohibited information on the tool. The alert will similarly consist of a need for the user to pay the ransom.

Technical details

File Info:
crc32: 051B428D
md5: fc0bc692d4d678a8df9d7f7cde8b9293
name: FC0BC692D4D678A8DF9D7F7CDE8B9293.mlw
sha1: ef9477be4488dbd52e165c4c1936b454647e23d2
sha256: 8c5d071dfff8c5ce27afc37e287a64ac273ac70d7bc556efd368616c6cc6386b
sha512: 39a1bf1d9a7b58ba22177cd72547af7af56cd1068dda6fa591106ed8f222eb593bfe8ba63570017439bbea4e7db1dd2138da9992268d500e6c6950e39c89e7e4
ssdeep: 49152:Jwd2G0hJWaU7B45k1/3cRC/RFQqk2PreDF26m0g:mD0hJL5k1/MROLk2Pq
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
Translation: 0x0809 0x04b0

Trojan:Win32/Downloader.AU!MTB also known as:

How to remove Trojan:Win32/Downloader.AU!MTB virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.

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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.³.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Trojan:Win32/Downloader.AU!MTB files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

Are Your Protected?

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If the guide doesn’t help you to remove Trojan:Win32/Downloader.AU!MTB you can always ask me in the comments for getting help.

1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
3. More information about GridinSoft products: https://gridinsoft.com/comparison