Trojan:Win32/Emotet.CM!rfn

Emotet - banking trojan
Emotet - banking trojan
Written by Robert Bailey

What is Trojan:Win32/Emotet.CM!rfn infection?

In this short article you will locate concerning the interpretation of Trojan:Win32/Emotet.CM!rfn as well as its negative influence on your computer. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom money by a sufferer.

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Most of the situations, Trojan:Win32/Emotet.CM!rfn infection will certainly instruct its victims to initiate funds transfer for the objective of counteracting the changes that the Trojan infection has presented to the sufferer’s device.

Trojan:Win32/Emotet.CM!rfn 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.
  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • Mimics the system’s user agent string for its own requests;
  • A process attempted to delay the analysis task.;
  • 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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • 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.
  • Deletes its original binary from disk;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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 copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the target’s hard drive — so the sufferer can no more use the information;
  • Preventing regular accessibility to the victim’s workstation;

Trojan:Win32/Emotet.CM!rfn

The most typical channels whereby Trojan:Win32/Emotet.CM!rfn Trojans are injected are:

  • By ways of phishing emails;
  • As a consequence of user winding up on a resource that organizes a harmful software application;

As soon as the Trojan is effectively injected, it will either cipher the data on the victim’s PC or prevent the device from functioning in a proper manner – while additionally placing a ransom note that discusses the requirement for the sufferers to impact the repayment for the objective of decrypting the documents or restoring the file system back to the first condition. In the majority of instances, the ransom money note will turn up when the client restarts the COMPUTER after the system has actually currently been harmed.

Trojan:Win32/Emotet.CM!rfn distribution networks.

In various corners of the globe, Trojan:Win32/Emotet.CM!rfn expands by jumps as well as bounds. Nevertheless, the ransom money notes and also tricks of extorting the ransom quantity might differ depending upon certain local (local) setups. The ransom notes and also techniques of obtaining the ransom money quantity may differ depending on specific neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In particular locations, the Trojans typically wrongfully report having discovered some unlicensed applications enabled on the sufferer’s tool. The alert after that demands the user to pay the ransom money.

    Faulty statements regarding prohibited material.

    In countries where software program piracy is much less popular, this technique is not as effective for the cyber frauds. Additionally, the Trojan:Win32/Emotet.CM!rfn popup alert may wrongly claim to be stemming from a law enforcement institution and will report having located youngster porn or other unlawful data on the tool.

    Trojan:Win32/Emotet.CM!rfn popup alert might incorrectly claim to be obtaining from a regulation enforcement organization as well as will report having located kid pornography or various other prohibited information on the gadget. The alert will in a similar way have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: D2DC51D9
md5: 04baac2d6769b543e7d7ef79b868ac17
name: M0LrqLBY2gPY6i.exe
sha1: 7449283bc8dc57475f12d152279db9c1f37347cd
sha256: 56ec3f3f03b57003c39afd10a1838e7772b9d9905de7215fcf2fbc23c69dbe7b
sha512: d2e02c4df85fe54c59f33468df7dd502c5d8531fdbe825672fb53d7b37098d9964da18b7fe50c0fe89250abeb5cf89219e363d433230c2dcb4df786702ee003c
ssdeep: 6144:lACRBt2dm/TyQZSrL5QuiAlCgXqotmup/7UXl61o:sQZSrnLCXupoEo
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Emotet.CM!rfn also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanTrojan.GenericKD.32809409
FireEyeGeneric.mg.04baac2d6769b543
McAfeeRDN/Emotet-Dropped
VIPRETrojan.Win32.Generic!BT
SangforMalware
BitDefenderTrojan.GenericKD.32809409
K7GWTrojan ( 0053b3091 )
Cybereasonmalicious.bc8dc5
BitDefenderThetaGen:NN.ZexaF.33550.sqX@ayDcsTii
F-ProtW32/Trojan2.QAOY
SymantecTrojan Horse
APEXMalicious
AvastWin32:BankerX-gen [Trj]
GDataTrojan.GenericKD.32809409
KasperskyTrojan-Banker.Win32.Emotet.enij
NANO-AntivirusTrojan.Win32.Emotet.glixyx
Ad-AwareTrojan.GenericKD.32809409
SophosMal/Generic-S
ComodoMalware@#2p44hheb6iaar
F-SecureTrojan.TR/AD.Emotet.ecxt
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Ransomware.fh
Trapminemalicious.moderate.ml.score
EmsisoftTrojan.GenericKD.32809409 (B)
CyrenW32/Trojan.EQFE-6613
JiangminTrojan.Banker.Emotet.muj
WebrootW32.Trojan.Emotet
AviraTR/AD.Emotet.ecxt
Antiy-AVLTrojan/Win32.Wacatac
Endgamemalicious (high confidence)
ArcabitTrojan.Generic.D1F4A1C1
ZoneAlarmTrojan-Banker.Win32.Emotet.enij
MicrosoftTrojan:Win32/Emotet.CM!rfn
AhnLab-V3Trojan/Win32.Emotet.C3639434
MAXmalware (ai score=80)
PandaTrj/Emotet.A
ESET-NOD32Win32/Emotet.BN
IkarusTrojan-Banker.Emotet
FortinetW32/Kryptik.GZIT!tr
AVGWin32:BankerX-gen [Trj]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Trojan:Win32/Emotet.CM!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

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.2.

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 install-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 Trojan:Win32/Emotet.CM!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:

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

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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