Trojan:MSIL/AgentTesla.KAAO!MTB Virus Removal

Seeing the Trojan:MSIL/AgentTesla.KAAO!MTB detection name means that your computer is in big danger. This malware can correctly be identified as ransomware – virus which ciphers your files and forces you to pay for their decryption. Stopping it requires some peculiar steps that must be taken as soon as possible.

Trojan:MSIL/AgentTesla.KAAO!MTB detection is a virus detection you can spectate in your computer. It usually shows up after the provoking activities on your computer – opening the dubious email messages, clicking the advertisement in the Internet or installing the program from suspicious resources. From the second it appears, you have a short time to do something about it until it starts its malicious action. And be sure – it is better not to await these malicious things.

What is Trojan:MSIL/AgentTesla.KAAO!MTB virus?

Trojan:MSIL/AgentTesla.KAAO!MTB Summary

In summary, Trojan:MSIL/AgentTesla.KAAO!MTB virus activities in the infected PC are next:

  • CAPE extracted potentially suspicious content;
  • Authenticode signature is invalid;
  • Ciphering the files located on the victim’s drive — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-malware programs

Ransomware has been a headache for the last 4 years. It is hard to picture a more harmful virus for both individuals and companies. The algorithms used in Trojan:MSIL/AgentTesla.KAAO!MTB (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy already exists, and possibly will exist. However, that malware does not do all these terrible things immediately – it may take up to several hours to cipher all of your files. Thus, seeing the Trojan:MSIL/AgentTesla.KAAO!MTB detection is a clear signal that you have to start the elimination procedure.

Where did I get the Trojan:MSIL/AgentTesla.KAAO!MTB?

Common methods of Trojan:MSIL/AgentTesla.KAAO!MTB injection are basic for all other ransomware variants. Those are one-day landing web pages where victims are offered to download and install the free app, so-called bait e-mails and hacktools. Bait emails are a quite modern method in malware spreading – you receive the e-mail that simulates some standard notifications about shippings or bank service conditions modifications. Within the email, there is an infected MS Office file, or a web link which opens the exploit landing page.

Malicious email spam

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

Avoiding it looks quite uncomplicated, but still demands a lot of focus. Malware can hide in different places, and it is far better to prevent it even before it goes into your PC than to depend on an anti-malware program. Essential cybersecurity awareness is just an essential item in the modern world, even if your relationship with a PC stays on YouTube videos. That may save you a lot of time and money which you would certainly spend while looking for a fixing guide.

Trojan:MSIL/AgentTesla.KAAO!MTB malware technical details

File Info:

name: F2E349D86B057BA53A1B.mlwpath: /opt/CAPEv2/storage/binaries/207bfbe64871f4b4140f97ed5c877283469a344339d96a909c99f5067ecf0aaccrc32: CF0AC45Fmd5: f2e349d86b057ba53a1b8e7dcc595ac5sha1: 578603ffc80014db69bbc9328fec0c231c4ec81asha256: 207bfbe64871f4b4140f97ed5c877283469a344339d96a909c99f5067ecf0aacsha512: af7aac607fc5abd8938baabeccd59cec85db516b663f319144336b49d70ad282005d325ac447e9ed40615ca52b4bde033b8de1562de6bbdac6bcdc922afa5590ssdeep: 384:mpfOEQv+iA8Cnepmwww6BKpwWowwwlpESUJXtdhVm13jWtSHPWcAwaYi:CncRpESUJXtdhVm13jWtSHPWcFaYitype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1E004C952EBB6EF30CE340A3FC245B3255F2E5E9181F27D8E304DB1652EB9D01D5446AAsha3_384: fc4e334c22cf917cc4c827dea62d62ebf42c4c8afb59f8e530da27a50422963582d88a51227862acb70e43e0353013cbep_bytes: ff25d43040000000000000000000a830timestamp: 2023-08-22 03:47:25

Version Info:

Translation: 0x0000 0x04b0Comments: CompanyName: FileDescription: FileVersion: 1.0.0.0InternalName: Zyuyaai.exeLegalCopyright: LegalTrademarks: OriginalFilename: Zyuyaai.exeProductName: ProductVersion: 1.0.0.0Assembly Version: 1.0.0.0

Trojan:MSIL/AgentTesla.KAAO!MTB also known as:

Lionic Trojan.Win32.Seraph.j!c
MicroWorld-eScan IL:Trojan.MSILZilla.31217
Skyhigh RDN/Generic Downloader.x
ALYac IL:Trojan.MSILZilla.28764
Malwarebytes Trojan.MalPack.MSIL.Generic
VIPRE IL:Trojan.MSILZilla.28764
Sangfor Downloader.Msil.Agent.Vi7q
K7AntiVirus Trojan-Downloader ( 005aa3481 )
BitDefender IL:Trojan.MSILZilla.31217
K7GW Trojan-Downloader ( 005aa3481 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZemsilF.36792.km0@aemaMhh
VirIT Trojan.Win32.DownLoader19.VVA
Symantec Trojan.Gen.MBT
Elastic malicious (high confidence)
ESET-NOD32 a variant of MSIL/TrojanDownloader.Agent.POM
Cynet Malicious (score: 100)
APEX Malicious
Kaspersky HEUR:Trojan-Ransom.Win32.Blocker.pef
Alibaba TrojanDownloader:MSIL/Seraph.683c4315
NANO-Antivirus Trojan.Win32.Blocker.kdcdbw
ViRobot Trojan.Win.Z.Lazy.173056
Sophos Mal/Generic-S
F-Secure Trojan.TR/Dldr.Agent.mbbcv
DrWeb Trojan.DownLoader46.714
Zillya Downloader.Seraph.Win32.4354
TrendMicro Trojan.MSIL.SERAPH.USPAXHP23
FireEye Generic.mg.f2e349d86b057ba5
Emsisoft IL:Trojan.MSILZilla.31217 (B)
Ikarus Trojan-Downloader.MSIL.Agent
GData IL:Trojan.MSILZilla.31217
Webroot W32.Trojan.MSIL.Seraph
Varist W32/MSIL_Kryptik.DBS.gen!Eldorado
Avira TR/Dldr.Agent.mbbcv
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Kingsoft Win32.Trojan-Ransom.Blocker.pef
Arcabit IL:Trojan.MSILZilla.D79F1
ZoneAlarm HEUR:Trojan-Ransom.Win32.Blocker.pef
Microsoft Trojan:MSIL/AgentTesla.KAAO!MTB
Google Detected
AhnLab-V3 Malware/Win.Generic.C5474856
McAfee RDN/Generic Downloader.x
MAX malware (ai score=81)
DeepInstinct MALICIOUS
Cylance unsafe
Panda Trj/Chgt.AD
TrendMicro-HouseCall Trojan.MSIL.SERAPH.USPAXHP23
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.Igent.b0Ix0Q.4
SentinelOne Static AI – Malicious PE
Fortinet MSIL/Agent.POM!tr.dldr
AVG Win32:PWSX-gen [Trj]
Avast Win32:PWSX-gen [Trj]

How to remove Trojan:MSIL/AgentTesla.KAAO!MTB?

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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