Backdoor:MSIL/Remcos.VA!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Backdoor:MSIL/Remcos.VA!MTB infection?

In this post you will certainly discover regarding the definition of Backdoor:MSIL/Remcos.VA!MTB and also its adverse impact on your computer system. Such ransomware are a kind of malware that is specified by on the internet fraudulences to demand paying the ransom money by a victim.

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Most of the instances, Backdoor:MSIL/Remcos.VA!MTB ransomware will instruct its sufferers to initiate funds move for the objective of counteracting the amendments that the Trojan infection has introduced to the target’s tool.

Backdoor:MSIL/Remcos.VA!MTB Summary

These adjustments can be as complies with:

  • 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);
  • Injection with CreateRemoteThread in a remote process;
  • Attempts to connect to a dead IP:Port (1 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.
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • 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.

  • A process created a hidden window;
  • 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;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Executed a process and injected code into it, probably while unpacking;
  • A process was set to shut the system down when terminated;
  • Exhibits behavior characteristic of Nanocore RAT;
  • Creates a copy of itself;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Ciphering the documents situated on the target’s hard drive — so the victim can no more use the information;
  • Preventing routine 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
innocentbooii.hopto.org Ransom.Wannacry

Backdoor:MSIL/Remcos.VA!MTB

The most regular channels through which Backdoor:MSIL/Remcos.VA!MTB Ransomware are infused are:

  • By methods of phishing emails;
  • As an effect of customer winding up on a source that holds a destructive software;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s PC or prevent the gadget from functioning in an appropriate way – while additionally placing a ransom note that mentions the need for the victims to effect the settlement for the function of decrypting the documents or bring back the documents system back to the initial condition. In many instances, the ransom note will come up when the customer reboots the PC after the system has currently been harmed.

Backdoor:MSIL/Remcos.VA!MTB circulation channels.

In various edges of the globe, Backdoor:MSIL/Remcos.VA!MTB grows by jumps as well as bounds. Nonetheless, the ransom money notes and tricks of obtaining the ransom money quantity might differ depending on particular neighborhood (regional) setups. The ransom money notes and also methods of obtaining the ransom money quantity might differ depending on specific regional (local) setups.

Ransomware injection

For example:

    Faulty alerts about unlicensed software application.

    In specific areas, the Trojans often wrongfully report having found some unlicensed applications made it possible for on the target’s device. The alert then requires the user to pay the ransom money.

    Faulty statements concerning unlawful material.

    In nations where software piracy is less popular, this approach is not as efficient for the cyber scams. Additionally, the Backdoor:MSIL/Remcos.VA!MTB popup alert may falsely claim to be deriving from a law enforcement organization and also will certainly report having situated youngster pornography or other prohibited data on the device.

    Backdoor:MSIL/Remcos.VA!MTB popup alert might incorrectly assert to be obtaining from a legislation enforcement institution and will certainly report having located kid pornography or other prohibited data on the gadget. The alert will likewise include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 9E78E923
md5: 3ce1cd976554c8e352299e89ce8b7a8d
name: 3CE1CD976554C8E352299E89CE8B7A8D.mlw
sha1: 2ae2a6ad93d19abce1a3827c0b9f4286593a22e7
sha256: dbdfb0182a47e0ce2f160e41bf6920829993b906699d2f55f6785991f5db875c
sha512: f3377739580a6050d2e290c52bcb1bd58ce10305686fc752c4e4cb7eba20f3da4c084261775b24cce9d5179c1221d261361394c44d78725238c3d3eff7328d8c
ssdeep: 24576:gyBlbThjhPitk5Z2GojvsaKP+Yr0otqiUqLDJOrk6k13fe9X:gyBlbThjhPityM8aKfYoUiUqPJOrk6k
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: CVS Health Corp.
Assembly Version: 20.21.0.0
InternalName: ux53f8.exe
FileVersion: 20.21.0.0
CompanyName: Biogen Inc. (BIIB)
LegalTrademarks:
Comments: Bristol Myers Squibb
ProductName: Nursery Management System
ProductVersion: 20.21.0.0
FileDescription: Nursery Management System
OriginalFilename: ux53f8.exe

Backdoor:MSIL/Remcos.VA!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.MSILHeracles.8911
FireEye Generic.mg.3ce1cd976554c8e3
CAT-QuickHeal Trojan.Multi
Qihoo-360 Generic/HEUR/QVM03.0.3FA7.Malware.Gen
McAfee Fareit-FXJ!3CE1CD976554
Cylance Unsafe
K7AntiVirus Trojan ( 005756311 )
BitDefender Gen:Variant.MSILHeracles.8911
K7GW Trojan ( 005756311 )
CrowdStrike win/malicious_confidence_100% (W)
Cyren W32/MSIL_Kryptik.CNY.gen!Eldorado
Symantec Ransom.Wannacry
APEX Malicious
Avast Win32:RATX-gen [Trj]
Kaspersky HEUR:Backdoor.MSIL.NanoBot.gen
ViRobot Backdoor.Win32.S.Nanocore.894976
AegisLab Trojan.MSIL.NanoBot.m!c
Ad-Aware Gen:Variant.MSILHeracles.8911
Emsisoft Trojan.Agent (A)
Comodo Malware@#drby4mbnwka4
F-Secure Trojan.TR/AD.Nanocore.javnx
DrWeb Trojan.PackedNET.405
McAfee-GW-Edition Fareit-FXJ!3CE1CD976554
Sophos Mal/Generic-S
Ikarus Trojan.MSIL.Inject
Jiangmin Backdoor.MSIL.ecjy
Avira TR/AD.Nanocore.javnx
MAX malware (ai score=89)
Kingsoft Win32.Hack.Undef.(kcloud)
Microsoft Backdoor:MSIL/Remcos.VA!MTB
Gridinsoft Trojan.Win32.Packed.oa
Arcabit Trojan.MSILHeracles.D22CF
ZoneAlarm HEUR:Backdoor.MSIL.NanoBot.gen
GData Gen:Variant.MSILHeracles.8911
Cynet Malicious (score: 100)
BitDefenderTheta Gen:NN.ZemsilF.34700.2m0@aGnjUai
ALYac Gen:Variant.MSILHeracles.8911
Malwarebytes Trojan.MalPack
Panda Trj/GdSda.A
ESET-NOD32 a variant of MSIL/Kryptik.ZDG
TrendMicro-HouseCall TROJ_GEN.R06CH09LS20
Tencent Win32.Trojan.Inject.Auto
SentinelOne Static AI – Malicious PE
Fortinet MSIL/Kryptik.ZDG!tr
AVG Win32:RATX-gen [Trj]
Cybereason malicious.76554c
Paloalto generic.ml
MaxSecure Trojan.Malware.300983.susgen

How to remove Backdoor:MSIL/Remcos.VA!MTB 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 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/Remcos.VA!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.

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 Backdoor:MSIL/Remcos.VA!MTB 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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