What is Trojan:MSIL/Tnega.PCA!MTB infection?

In this article you will find about the interpretation of Trojan:MSIL/Tnega.PCA!MTB and its unfavorable influence on your computer system. Such ransomware are a type of malware that is specified by on the internet scams to require paying the ransom by a sufferer.

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In the majority of the cases, Trojan:MSIL/Tnega.PCA!MTB infection will certainly instruct its sufferers to start funds transfer for the objective of neutralizing the amendments that the Trojan infection has introduced to the sufferer’s device.

Trojan:MSIL/Tnega.PCA!MTB Summary

These adjustments can be as follows:

  • 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.
  • A process attempted to delay the analysis task.;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the victim’s hard disk — so the target can no longer make use of the data;
  • Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


One of the most normal networks whereby Trojan:MSIL/Tnega.PCA!MTB Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of individual ending up on a source that organizes a harmful software application;

As soon as the Trojan is efficiently injected, it will certainly either cipher the information on the target’s PC or protect against the device from working in a correct way – while likewise putting a ransom money note that points out the demand for the targets to effect the payment for the objective of decrypting the records or restoring the data system back to the initial problem. In a lot of instances, the ransom money note will show up when the customer reboots the PC after the system has actually already been damaged.

Trojan:MSIL/Tnega.PCA!MTB circulation channels.

In numerous corners of the globe, Trojan:MSIL/Tnega.PCA!MTB expands by jumps as well as bounds. Nonetheless, the ransom notes and methods of obtaining the ransom money amount may differ depending on particular regional (local) settings. The ransom notes and methods of obtaining the ransom money quantity might vary depending on specific regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software program.

    In particular locations, the Trojans often wrongfully report having found some unlicensed applications enabled on the victim’s device. The sharp after that demands the customer to pay the ransom.

    Faulty declarations concerning illegal content.

    In countries where software piracy is much less preferred, this method is not as efficient for the cyber scams. Additionally, the Trojan:MSIL/Tnega.PCA!MTB popup alert might wrongly assert to be originating from a law enforcement organization as well as will certainly report having situated youngster porn or other unlawful data on the device.

    Trojan:MSIL/Tnega.PCA!MTB popup alert might wrongly assert to be deriving from a legislation enforcement institution as well as will certainly report having situated youngster porn or various other unlawful information on the tool. The alert will in a similar way include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 18870B87
md5: 6452b446967a86924e7a311b9829fb62
name: 6452B446967A86924E7A311B9829FB62.mlw
sha1: 5eba01d2889d10429f31b548b08c3a2a37d4285c
sha256: 6c950faf6ebff46c369a6aab99cfcbdd300f80a0112ec9e1af462084f16108bd
sha512: aacb01fb7987bc4aaeb6df5b795b76e31ba687d8b44b37af711b6f4eee78cfa769cc8b50aaaf0baa05c0ccf13968684b87011880a2da2af5687852aeeb637745
ssdeep: 384:OOFb3YSsnUdnqK39nnAjAu62WZxnO5NbJwzXlp6NaUk6p67ag6b8m4QA8I9GS7I:RbItUnAsuxJccDb8vJ9GqI
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
Assembly Version:
InternalName: Client.exe
FileDescription: Client
OriginalFilename: Client.exe

Trojan:MSIL/Tnega.PCA!MTB also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00553e3c1 )
Elastic malicious (high confidence)
DrWeb BackDoor.Bladabindi.1702
Cynet Malicious (score: 100)
CAT-QuickHeal TrojanRansom.MSIL
ALYac Gen:Variant.MSILPerseus.124151
Cylance Unsafe
Zillya Worm.Agent.Win32.57860
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:MSIL/Tnega.2765bf5a
K7GW Trojan ( 00553e3c1 )
Cybereason malicious.6967a8
Cyren W32/Trojan.SW.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Agent.VY
APEX Malicious
Avast MSIL:Downloader-LX [Trj]
Kaspersky HEUR:Trojan-Ransom.MSIL.Blocker.gen
BitDefender Gen:Variant.MSILPerseus.124151
MicroWorld-eScan Gen:Variant.MSILPerseus.124151
Ad-Aware Gen:Variant.MSILPerseus.124151
Sophos Mal/Generic-S
F-Secure Trojan.TR/Dropper.Gen7
BitDefenderTheta Gen:NN.ZemsilF.34670.bm0@aWMWSmh
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_Blocker.R002C0PCM21
Emsisoft Gen:Variant.MSILPerseus.124151 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.MSIL.qxsu
Webroot W32.Downloader.Gen
Avira TR/Dropper.Gen7
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan[Ransom]/MSIL.Blocker
Microsoft Trojan:MSIL/Tnega.PCA!MTB
Arcabit Trojan.MSILPerseus.D1E4F7
AegisLab Trojan.MSIL.Blocker.j!c
ZoneAlarm HEUR:Trojan-Ransom.MSIL.Blocker.gen
GData Gen:Variant.MSILPerseus.124151
AhnLab-V3 Trojan/Win32.RL_Generic.C3558531
McAfee GenericRXML-IS!6452B446967A
MAX malware (ai score=85)
Malwarebytes Worm.Agent
TrendMicro-HouseCall Ransom_Blocker.R002C0PCM21
Rising Worm.Agent!8.25 (CLOUD)
Ikarus Trojan.ILCrypt
Fortinet MSIL/Agent.YW!tr
AVG MSIL:Downloader-LX [Trj]
Qihoo-360 Win32/Ransom.Blocker.HgIASRQA

How to remove Trojan:MSIL/Tnega.PCA!MTB virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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 Trojan:MSIL/Tnega.PCA!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 Trojan:MSIL/Tnega.PCA!MTB you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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