Trojan:Win32/Emotet!rfn

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

What is Trojan:Win32/Emotet!rfn infection?

In this article you will certainly locate concerning the definition of Trojan:Win32/Emotet!rfn and also its adverse impact on your computer. Such ransomware are a form of malware that is elaborated by on-line scams to require paying the ransom by a target.

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Most of the situations, Trojan:Win32/Emotet!rfn ransomware will advise its targets to launch funds move for the function of counteracting the changes that the Trojan infection has presented to the target’s tool.

Trojan:Win32/Emotet!rfn Summary

These alterations 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;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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;
  • 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 found on the sufferer’s hard disk — so the sufferer can no more utilize the information;
  • Preventing regular 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.
Similar behavior
Related domains
z.whorecord.xyzBehavesLike.Win32.Ransomware.gh
a.tomx.xyzBehavesLike.Win32.Ransomware.gh

Trojan:Win32/Emotet!rfn

The most regular channels where Trojan:Win32/Emotet!rfn Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of individual ending up on a source that hosts a malicious software application;

As soon as the Trojan is efficiently infused, it will either cipher the information on the target’s PC or stop the tool from functioning in a correct way – while also putting a ransom money note that discusses the requirement for the sufferers to impact the settlement for the purpose of decrypting the records or bring back the file system back to the first condition. In most instances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has actually currently been harmed.

Trojan:Win32/Emotet!rfn circulation networks.

In numerous edges of the world, Trojan:Win32/Emotet!rfn grows by jumps as well as bounds. Nonetheless, the ransom notes as well as techniques of extorting the ransom money amount may vary depending upon particular neighborhood (regional) setups. The ransom notes and also tricks of extorting the ransom money quantity may vary depending on certain regional (regional) setups.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software application.

    In particular areas, the Trojans usually wrongfully report having found some unlicensed applications enabled on the target’s tool. The alert then requires the customer to pay the ransom.

    Faulty statements regarding illegal content.

    In nations where software application piracy is less popular, this technique is not as reliable for the cyber fraudulences. Additionally, the Trojan:Win32/Emotet!rfn popup alert might falsely claim to be stemming from a law enforcement organization and will report having situated child porn or various other unlawful data on the tool.

    Trojan:Win32/Emotet!rfn popup alert may incorrectly declare to be acquiring from a regulation enforcement establishment and will report having situated child pornography or other prohibited data on the tool. The alert will similarly include a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: E6330B5E
md5: 0f8a02352ff090cc2b5bde275e5dc11c
name: D3.exe
sha1: d28f3070c62a56d2bf87ddc7db390270a9ca179d
sha256: 249cd6583dd09590841061d9b5cf8ef80924ac2c9d9fdf63065eb17d93e897c8
sha512: 240f31782a1cd79bf3b13aa5218db394cbe81af8f94941f9d17c3f8cdc3c0311f18799afaa02842215c6974ef2aff884dc2322963e92cd216d20eb47c44b65e0
ssdeep: 6144:uK1TL+6Rexa9WSU/BV5qVqc03x60Dhm+kEuS6QoJx5XpJqn3BTZe87tbiSj:umZ9WSlk13xRDhoS8x5gBU8JiSj
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2001
InternalName: WBP
FileVersion: 1, 0, 0, 1
ProductName: WBP Application
ProductVersion: 1, 0, 0, 1
FileDescription: WBP MFC Application
OriginalFilename: WBP.EXE
Translation: 0x0409 0x04b0

Trojan:Win32/Emotet!rfn also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanTrojan.GenericKD.42248165
FireEyeGeneric.mg.0f8a02352ff090cc
McAfeeEmotet-FPC!0F8A02352FF0
CylanceUnsafe
BitDefenderTrojan.GenericKD.42248165
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.0c62a5
BitDefenderThetaGen:NN.ZexaF.34082.zq1@aKqZFqfi
CyrenW32/Kryptik.AYJ.gen!Eldorado
SymantecTrojan Horse
APEXMalicious
AvastWin32:Malware-gen
GDataTrojan.GenericKD.42248165
KasperskyUDS:DangerousObject.Multi.Generic
AlibabaTrojan:Win32/starter.ali1000037
AegisLabTrojan.Win32.Generic.4!c
RisingTrojan.Detplock!8.4A0D (CLOUD)
Endgamemalicious (high confidence)
SophosMal/Generic-S
DrWebTrojan.DownLoader32.47698
McAfee-GW-EditionBehavesLike.Win32.Ransomware.gh
Trapminesuspicious.low.ml.score
EmsisoftTrojan.Emotet (A)
IkarusWin32.Outbreak
F-ProtW32/Kryptik.AYJ.gen!Eldorado
WebrootW32.Trojan.Emotet
MAXmalware (ai score=82)
MicrosoftTrojan:Win32/Emotet!rfn
ArcabitTrojan.Generic.D284A7E5
ZoneAlarmUDS:DangerousObject.Multi.Generic
AhnLab-V3Trojan/Win32.Emotet.C3889684
Acronissuspicious
Ad-AwareTrojan.GenericKD.42248165
MalwarebytesTrojan.Emotet
ESET-NOD32a variant of Win32/GenKryptik.EBYL
SentinelOneDFI – Suspicious PE
FortinetW32/TrickBot.CJ!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_90% (W)

How to remove Trojan:Win32/Emotet!rfn ransomware?

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!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 Trojan:Win32/Emotet!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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