TrojanDownloader:MSIL/AgentTesla.EFZ!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the TrojanDownloader:MSIL/AgentTesla.EFZ!MTB malware detection usually means that your system is in big danger. This virus can correctly be identified as ransomware – type of malware which ciphers your files and asks you to pay for their decryption. Removing it requires some unusual steps that must be taken as soon as possible.
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TrojanDownloader:MSIL/AgentTesla.EFZ!MTB detection is a virus detection you can spectate in your system. It usually appears after the preliminary activities on your computer – opening the suspicious e-mail messages, clicking the banner in the Internet or installing the program from untrustworthy sources. From the second it shows up, you have a short time to take action before it starts its harmful activity. And be sure – it is much better not to await these harmful things.

What is TrojanDownloader:MSIL/AgentTesla.EFZ!MTB virus?

TrojanDownloader:MSIL/AgentTesla.EFZ!MTB is ransomware-type malware. It searches for the documents on your computer, ciphers it, and then asks you to pay the ransom for getting the decryption key. Besides making your files inaccessible, this malware also does a lot of damage to your system. It changes the networking setups in order to avoid you from checking out the removal tutorials or downloading the anti-malware program. Sometimes, TrojanDownloader:MSIL/AgentTesla.EFZ!MTB can additionally block the launching of anti-malware programs.

TrojanDownloader:MSIL/AgentTesla.EFZ!MTB Summary

In total, TrojanDownloader:MSIL/AgentTesla.EFZ!MTB malware activities in the infected computer are next:

  • Dynamic (imported) function loading detected;
  • Authenticode signature is invalid;
  • Binary compilation timestomping detected;
  • Ciphering the documents kept on the target’s disk drives — so the victim cannot check these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-malware apps

Ransomware has been a horror story for the last 4 years. It is difficult to imagine a more harmful virus for both individuals and companies. The algorithms used in TrojanDownloader:MSIL/AgentTesla.EFZ!MTB (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy actually exists, and possibly will exist. However, that malware does not do all these horrible things immediately – it can require up to a few hours to cipher all of your files. Hence, seeing the TrojanDownloader:MSIL/AgentTesla.EFZ!MTB detection is a clear signal that you have to start the clearing procedure.

Where did I get the TrojanDownloader:MSIL/AgentTesla.EFZ!MTB?

Common methods of TrojanDownloader:MSIL/AgentTesla.EFZ!MTB spreading are standard for all other ransomware examples. Those are one-day landing sites where victims are offered to download the free software, so-called bait emails and hacktools. Bait e-mails are a quite modern tactic in malware spreading – you receive the email that imitates some standard notifications about shipments or bank service conditions updates. Within the e-mail, there is a malicious MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Avoiding it looks pretty uncomplicated, but still demands a lot of attention. Malware can hide in different spots, and it is much better to stop it even before it invades your computer than to rely upon an anti-malware program. General cybersecurity awareness is just an important item in the modern-day world, even if your interaction with a computer stays on YouTube videos. That can save you a great deal of money and time which you would spend while trying to find a solution.

TrojanDownloader:MSIL/AgentTesla.EFZ!MTB malware technical details

File Info:

name: 4C930B0C86456855B469.mlw
path: /opt/CAPEv2/storage/binaries/11955da9e9333ceec67f70ea75563051452765bb5055f6ebc4406f4484bd71d1
crc32: 499BA2A1
md5: 4c930b0c86456855b4694ae867e084ed
sha1: d648611dc38c8f66ba18a9eecf6ac3726bdc3723
sha256: 11955da9e9333ceec67f70ea75563051452765bb5055f6ebc4406f4484bd71d1
sha512: 1b60ad6af8d0fdec8054bdf50d97e37c2f297bb5dc5975878027eff6e94bf32abd098c68db4abd45667e9cf1bb13013960e25d4c5566f04c6783d04fc01af128
ssdeep: 1536:t5gI4wWZto1IVj44444444444444444444444444444mQLvN00rDRwZe0Ucp:vgIwI1IVZQLv0e0Uw
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T1F073EC432684C27CDC6A6DB5D10EA8F255707CAAC50AB04FA0F63E15B2F9F53D512FA2
sha3_384: 92870de5625042d4477aa17d6c36672d5411a83e0165912e429fda59c289d69aefa952956008310c0fc3947001008f48
ep_bytes: ff250020400000000000000000000000
timestamp: 2093-07-01 13:02:02

Version Info:

Translation: 0x0000 0x04b0
Comments: Host Process for Windows Services
CompanyName: Microsoft Corporation
FileDescription: Host Process for Windows Services
FileVersion: 10.0.22000.1
InternalName: NintendoFix Preconfigs.exe
LegalCopyright: © Microsoft Corporation. All rights reserved.
LegalTrademarks:
OriginalFilename: NintendoFix Preconfigs.exe
ProductName: Microsoft® Windows® Operating System
ProductVersion: 10.0.22000.1
Assembly Version: 10.0.22000.1

TrojanDownloader:MSIL/AgentTesla.EFZ!MTB also known as:

Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.38903027
FireEyeGeneric.mg.4c930b0c86456855
McAfeeRDN/Generic BackDoor
CylanceUnsafe
SangforTrojan.MSIL.PsDownload.gen
CrowdStrikewin/malicious_confidence_90% (W)
K7GWTrojan-Downloader ( 0058e1af1 )
K7AntiVirusTrojan-Downloader ( 0058e1af1 )
BitDefenderThetaGen:NN.ZemsilF.34212.em0@aep2Vgo
SymantecMSIL.Downloader!gen7
ESET-NOD32a variant of MSIL/TrojanDownloader.Agent.KIN
TrendMicro-HouseCallTROJ_GEN.R002C0PB922
Paloaltogeneric.ml
KasperskyHEUR:Trojan-Ransom.MSIL.Blocker.gen
BitDefenderTrojan.GenericKD.38903027
AvastWin32:RATX-gen [Trj]
Ad-AwareTrojan.GenericKD.38903027
EmsisoftTrojan.GenericKD.38903027 (B)
TrendMicroTROJ_GEN.R002C0PB922
McAfee-GW-EditionRDN/Generic BackDoor
SophosMal/Generic-S
IkarusTrojan-Downloader.MSIL.Agent
MaxSecureTrojan.Malware.300983.susgen
AviraTR/Blocker.prkjg
Antiy-AVLTrojan/Generic.ASMalwS.3524A78
MicrosoftTrojanDownloader:MSIL/AgentTesla.EFZ!MTB
GDataTrojan.GenericKD.38903027
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win.Generic.C4958610
VBA32TScope.Trojan.MSIL
ALYacTrojan.GenericKD.38903027
MAXmalware (ai score=80)
MalwarebytesTrojan.Downloader.MSIL.Generic
APEXMalicious
SentinelOneStatic AI – Suspicious PE
FortinetMSIL/Agent.JFV!tr.dldr
AVGWin32:RATX-gen [Trj]
PandaTrj/GdSda.A

How to remove TrojanDownloader:MSIL/AgentTesla.EFZ!MTB?

TrojanDownloader:MSIL/AgentTesla.EFZ!MTB malware is extremely hard to eliminate manually. It places its data in numerous locations throughout the disk, and can recover itself from one of the elements. Moreover, numerous modifications in the registry, networking setups and Group Policies are quite hard to identify and revert to the initial. It is far better to use a special tool – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the best for malware elimination reasons.

Why GridinSoft Anti-Malware? It is really lightweight and has its detection databases updated almost every hour. Furthermore, it does not have such problems and exploits as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware ideal for clearing away malware of any kind.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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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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