TrojanDownloader:MSIL/DownExec.YA!MTB

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

What is TrojanDownloader:MSIL/DownExec.YA!MTB infection?

In this article you will certainly find about the meaning of TrojanDownloader:MSIL/DownExec.YA!MTB as well as its negative effect on your computer. Such ransomware are a form of malware that is elaborated by online frauds to require paying the ransom money by a target.

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In the majority of the situations, TrojanDownloader:MSIL/DownExec.YA!MTB ransomware will certainly instruct its targets to launch funds transfer for the purpose of counteracting the modifications that the Trojan infection has introduced to the sufferer’s gadget.

TrojanDownloader:MSIL/DownExec.YA!MTB Summary

These modifications can be as adheres to:

  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the victim’s hard drive — so the target can no longer utilize the information;
  • 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.

TrojanDownloader:MSIL/DownExec.YA!MTB

The most regular networks through which TrojanDownloader:MSIL/DownExec.YA!MTB are injected are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a source that organizes a destructive software application;

As soon as the Trojan is efficiently infused, it will certainly either cipher the information on the victim’s computer or avoid the gadget from functioning in a proper manner – while likewise placing a ransom note that points out the requirement for the victims to impact the repayment for the purpose of decrypting the papers or bring back the file system back to the first condition. In many circumstances, the ransom note will turn up when the customer restarts the COMPUTER after the system has actually already been damaged.

TrojanDownloader:MSIL/DownExec.YA!MTB circulation channels.

In various edges of the world, TrojanDownloader:MSIL/DownExec.YA!MTB expands by leaps and bounds. Nonetheless, the ransom money notes and also techniques of extorting the ransom quantity may differ relying on particular regional (regional) settings. The ransom money notes and also tricks of extorting the ransom quantity might differ depending on certain neighborhood (regional) settings.

Ransomware injection

For example:

    Faulty signals about unlicensed software.

    In specific locations, the Trojans usually wrongfully report having actually detected some unlicensed applications enabled on the sufferer’s device. The sharp after that demands the user to pay the ransom money.

    Faulty statements concerning illegal content.

    In countries where software program piracy is less prominent, this approach is not as reliable for the cyber fraudulences. Alternatively, the TrojanDownloader:MSIL/DownExec.YA!MTB popup alert might incorrectly declare to be originating from a police institution as well as will report having situated child pornography or various other prohibited information on the tool.

    TrojanDownloader:MSIL/DownExec.YA!MTB popup alert may incorrectly declare to be deriving from a legislation enforcement institution and also will certainly report having situated youngster porn or various other illegal information on the tool. The alert will similarly contain a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: B5DD2934
md5: fef1116364a9d490f0328fb58a4677b1
name: upload_file
sha1: 2043a18ab381c80358355b1aed5ca8bc0e21afa6
sha256: 039ebab7c1d8c4138ac72642a8c6b9b3d08fb085a405b1a0bf059c840b999e02
sha512: 9d86d3310c3507c7979a6b8f418b467bd2eb8c2a98ae0e9f0c5288c56c05eeb5f6e45ae3d966a680b6ac03ec2d407ff581ab7ffb2032f5eb0b33d972f9f82737
ssdeep: 48:6mhsQs66Ms+OejQxtaIDFmqmg5B6ohXJhfk/2pV6hEAPTHZWuX23eXHY2jGE2Wu:bs6x5OejuJFb4oxlxAPQFbxVsRxIzNt
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright:
Assembly Version: 0.0.0.0
InternalName: altdriv.exe
FileVersion: 0.0.0.0
ProductVersion: 0.0.0.0
FileDescription:
OriginalFilename: altdriv.exe

TrojanDownloader:MSIL/DownExec.YA!MTB also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanGen:Variant.Razy.538750
FireEyeGeneric.mg.fef1116364a9d490
ALYacTrojan.Downloader.Small
CylanceUnsafe
AegisLabTrojan.MSIL.Blocker.j!c
SangforMalware
K7AntiVirusTrojan-Downloader ( 0055cb171 )
BitDefenderGen:Variant.Razy.538750
K7GWTrojan-Downloader ( 0055cb171 )
Cybereasonmalicious.364a9d
Invinceaheuristic
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/TrojanDownloader.Small.CAU
APEXMalicious
Paloaltogeneric.ml
KasperskyHEUR:Trojan-Ransom.MSIL.Blocker.gen
AlibabaTrojanDownloader:MSIL/DownExec.8184d1d4
RisingRansom.Blocker!8.12A (CLOUD)
Ad-AwareGen:Variant.Razy.538750
EmsisoftGen:Variant.Razy.538750 (B)
F-SecureTrojan.TR/Downloader.Gen8
DrWebTrojan.DownloaderNET.61
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_Blocker.R014C0DGV20
FortinetMSIL/Small.BXU!tr.dldr
SophosMal/Generic-S
SentinelOneDFI – Malicious PE
CyrenW32/Ransom.YIBK-0635
AviraTR/Downloader.Gen8
eGambitUnsafe.AI_Score_96%
MAXmalware (ai score=100)
Endgamemalicious (high confidence)
ArcabitTrojan.Razy.D8387E
ZoneAlarmHEUR:Trojan-Ransom.MSIL.Blocker.gen
MicrosoftTrojanDownloader:MSIL/DownExec.YA!MTB
CynetMalicious (score: 90)
AhnLab-V3Malware/Win32.RL_Generic.C3523901
McAfeeDownloader-FCAO!FEF1116364A9
VBA32TScope.Trojan.MSIL
MalwarebytesTrojan.Downloader
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_Blocker.R014C0DGV20
TencentMsil.Trojan.Blocker.Ejev
IkarusTrojan-Downloader.MSIL.Small
MaxSecureTrojan.Malware.300983.susgen
GDataGen:Variant.Razy.538750
BitDefenderThetaGen:NN.ZemsilF.34152.am0@aioqfHh
AVGWin32:DropperX-gen [Drp]
AvastWin32:DropperX-gen [Drp]
CrowdStrikewin/malicious_confidence_100% (W)
Qihoo-360Generic/Trojan.Ransom.8af

How to remove TrojanDownloader:MSIL/DownExec.YA!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 TrojanDownloader:MSIL/DownExec.YA!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 TrojanDownloader:MSIL/DownExec.YA!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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