What is Backdoor:MSIL/Hamaetot!rfn infection?

In this post you will locate concerning the interpretation of Backdoor:MSIL/Hamaetot!rfn as well as its adverse impact on your computer system. Such ransomware are a form of malware that is specified by online fraudulences to demand paying the ransom money by a sufferer.

GridinSoft Anti-Malware Review

GridinSoft Anti-Malware

Removing computer viruses manually may take hours and may damage your PC in the process. I recommend you to download GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
6-day trial available for threats removal.
EULA | Privacy Policy | GridinSoft

Most of the instances, Backdoor:MSIL/Hamaetot!rfn virus will instruct its targets to launch funds transfer for the objective of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s tool.

Backdoor:MSIL/Hamaetot!rfn Summary

These modifications can be as follows:

  • 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.
  • 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.;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Ciphering the files located on the sufferer’s hard drive — so the target can no longer make use of the data;
  • Preventing normal access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


One of the most normal channels through which Backdoor:MSIL/Hamaetot!rfn are injected are:

  • By ways of phishing e-mails;
  • As a consequence of customer winding up on a source that hosts a destructive software;

As soon as the Trojan is efficiently infused, it will either cipher the information on the sufferer’s PC or avoid the gadget from working in a correct fashion – while likewise placing a ransom money note that mentions the need for the sufferers to impact the settlement for the function of decrypting the records or restoring the data system back to the preliminary condition. In the majority of circumstances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has already been harmed.

Backdoor:MSIL/Hamaetot!rfn distribution channels.

In different edges of the globe, Backdoor:MSIL/Hamaetot!rfn expands by leaps and also bounds. However, the ransom money notes as well as methods of extorting the ransom money amount might differ depending upon certain regional (local) settings. The ransom money notes as well as methods of extorting the ransom money quantity may differ depending on particular local (regional) setups.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having actually detected some unlicensed applications enabled on the target’s device. The alert after that demands the customer to pay the ransom.

    Faulty statements concerning prohibited web content.

    In countries where software piracy is less prominent, this method is not as effective for the cyber frauds. Alternatively, the Backdoor:MSIL/Hamaetot!rfn popup alert might incorrectly claim to be deriving from a police establishment and also will report having situated youngster pornography or various other unlawful information on the gadget.

    Backdoor:MSIL/Hamaetot!rfn popup alert may wrongly assert to be obtaining from a regulation enforcement institution and will report having situated child pornography or various other unlawful information on the tool. The alert will likewise consist of a demand for the user to pay the ransom.

Technical details

File Info:

crc32: B8816FAE
md5: 7da13baa2be2be73146c77b8f8623754
name: 7DA13BAA2BE2BE73146C77B8F8623754.mlw
sha1: 313c16d023c6ad3379c194c4ece0470818894458
sha256: 8ce328d904cff217be0ed6a7d89c1bb40d9ac43cb2bfeec3e2fa9a97d3483b3b
sha512: 4eaa3aff8fc02b76cfcd009c43c7d87c4d32fa59a731f9f418b0b5f8bb59a537340dd6dec103cba725dabef02c603003cd7d5781d2efd886e397b375126e08ac
ssdeep: 768:Y3kCrSJbKLCey20MaYPBkE5MCJ9I3bBg3Ozrh+tUTYSlna8OoSkWnhjV25tHM+Y:4UJbKny2VHhWyBhkNk6O
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
Assembly Version:
InternalName: ms.exe
OriginalFilename: ms.exe

Backdoor:MSIL/Hamaetot!rfn also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader14.63533
Cynet Malicious (score: 100)
Cylance Unsafe
Zillya Trojan.Blocker.Win32.30218
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Blocker.084dd6bd
K7GW Riskware ( 0040eff71 )
Cybereason malicious.023c6a
ESET-NOD32 a variant of MSIL/Agent.HD
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.hlfg
NANO-Antivirus Trojan.Win32.Blocker.dufoyw
Tencent Win32.Trojan.Blocker.Aliv
Sophos Mal/Generic-S
Comodo Malware@#3o1p6izu1isr1
BitDefenderTheta Gen:NN.ZemsilF.34608.cm0@aWhy!oi
VIPRE Trojan.Win32.Generic!BT
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1115184
eGambit Unsafe.AI_Score_99%
Microsoft Backdoor:MSIL/Hamaetot!rfn
AegisLab Trojan.Win32.Blocker.j!c
TACHYON Ransom/W32.DN-Blocker.41472
AhnLab-V3 Malware/Win32.Generic.C1064686
McAfee Artemis!7DA13BAA2BE2
VBA32 Hoax.Blocker
Panda Trj/Chgt.O
Rising Ransom.Blocker!8.12A (CLOUD)
Ikarus Trojan.MSIL.Agent
Fortinet MSIL/Agent.HD!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.Blocker.HgIASOQA

How to remove Backdoor:MSIL/Hamaetot!rfn virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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.

Run Setup.exe

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.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Backdoor:MSIL/Hamaetot!rfn 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.

GridinSoft Anti-Malware Scanning

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.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Backdoor:MSIL/Hamaetot!rfn you can always ask me in the comments for getting help.

User Review
0 (0 votes)
Comments Rating 0 (0 reviews)


  1. GridinSoft Anti-Malware Review from HowToFix site:
  2. More information about GridinSoft products:

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

Leave a Reply


This site uses Akismet to reduce spam. Learn how your comment data is processed.