TrojanDownloader:MSIL/DownExec.YA!MTB
Emily Beck
Updated on April 27, 2026
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.
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.
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: B5DD2934md5: fef1116364a9d490f0328fb58a4677b1name: upload_filesha1: 2043a18ab381c80358355b1aed5ca8bc0e21afa6sha256: 039ebab7c1d8c4138ac72642a8c6b9b3d08fb085a405b1a0bf059c840b999e02sha512: 9d86d3310c3507c7979a6b8f418b467bd2eb8c2a98ae0e9f0c5288c56c05eeb5f6e45ae3d966a680b6ac03ec2d407ff581ab7ffb2032f5eb0b33d972f9f82737ssdeep: 48:6mhsQs66Ms+OejQxtaIDFmqmg5B6ohXJhfk/2pV6hEAPTHZWuX23eXHY2jGE2Wu:bs6x5OejuJFb4oxlxAPQFbxVsRxIzNttype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS WindowsVersion Info:
Translation: 0x0000 0x04b0LegalCopyright: Assembly Version: 0.0.0.0InternalName: altdriv.exeFileVersion: 0.0.0.0ProductVersion: 0.0.0.0FileDescription: OriginalFilename: altdriv.exe
TrojanDownloader:MSIL/DownExec.YA!MTB also known as:
| GridinSoft | Trojan.Ransom.Gen |
| MicroWorld-eScan | Gen:Variant.Razy.538750 |
| FireEye | Generic.mg.fef1116364a9d490 |
| ALYac | Trojan.Downloader.Small |
| Cylance | Unsafe |
| AegisLab | Trojan.MSIL.Blocker.j!c |
| Sangfor | Malware |
| K7AntiVirus | Trojan-Downloader ( 0055cb171 ) |
| BitDefender | Gen:Variant.Razy.538750 |
| K7GW | Trojan-Downloader ( 0055cb171 ) |
| Cybereason | malicious.364a9d |
| Invincea | heuristic |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | a variant of MSIL/TrojanDownloader.Small.CAU |
| APEX | Malicious |
| Paloalto | generic.ml |
| Kaspersky | HEUR:Trojan-Ransom.MSIL.Blocker.gen |
| Alibaba | TrojanDownloader:MSIL/DownExec.8184d1d4 |
| Rising | Ransom.Blocker!8.12A (CLOUD) |
| Ad-Aware | Gen:Variant.Razy.538750 |
| Emsisoft | Gen:Variant.Razy.538750 (B) |
| F-Secure | |
| DrWeb | Trojan.DownloaderNET.61 |
| VIPRE | Trojan.Win32.Generic!BT |
| TrendMicro | Ransom_Blocker.R014C0DGV20 |
| Fortinet | MSIL/Small.BXU!tr.dldr |
| Sophos | Mal/Generic-S |
| SentinelOne | DFI – Malicious PE |
| Cyren | W32/Ransom.YIBK-0635 |
| Avira | TR/Downloader.Gen8 |
| eGambit | Unsafe.AI_Score_96% |
| MAX | malware (ai score=100) |
| Endgame | malicious (high confidence) |
| Arcabit | Trojan.Razy.D8387E |
| ZoneAlarm | HEUR:Trojan-Ransom.MSIL.Blocker.gen |
| Microsoft | TrojanDownloader:MSIL/DownExec.YA!MTB |
| Cynet | Malicious (score: 90) |
| AhnLab-V3 | Malware/Win32.RL_Generic.C3523901 |
| McAfee | Downloader-FCAO!FEF1116364A9 |
| VBA32 | TScope.Trojan.MSIL |
| Malwarebytes | Trojan.Downloader |
| Panda | Trj/GdSda.A |
| TrendMicro-HouseCall | Ransom_Blocker.R014C0DGV20 |
| Tencent | Msil.Trojan.Blocker.Ejev |
| Ikarus | Trojan-Downloader.MSIL.Small |
| MaxSecure | Trojan.Malware.300983.susgen |
| GData | Gen:Variant.Razy.538750 |
| BitDefenderTheta | Gen:NN.ZemsilF.34152.am0@aioqfHh |
| AVG | Win32:DropperX-gen [Drp] |
| Avast | Win32:DropperX-gen [Drp] |
| CrowdStrike | win/malicious_confidence_100% (W) |
| Qihoo-360 | Generic/Trojan.Ransom.8af |
How to remove TrojanDownloader:MSIL/DownExec.YA!MTB ransomware?
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:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
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.
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.
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 Anti-Malware
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.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
