What is MSIL/TrojanClicker.Agent.NAF infection?

In this article you will certainly discover concerning the definition of MSIL/TrojanClicker.Agent.NAF as well as its negative impact on your computer. Such ransomware are a form of malware that is elaborated by on the internet scams to demand paying the ransom money by a sufferer.

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In the majority of the cases, MSIL/TrojanClicker.Agent.NAF virus will certainly instruct its victims to launch funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has actually introduced to the sufferer’s tool.

MSIL/TrojanClicker.Agent.NAF Summary

These adjustments can be as complies with:

  • 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.
  • 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 hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the sufferer’s hard disk — so the sufferer can no more utilize the information;
  • Preventing routine 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.


One of the most common channels whereby MSIL/TrojanClicker.Agent.NAF Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As a consequence of customer winding up on a source that hosts a malicious software;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s PC or prevent the gadget from working in a correct fashion – while likewise putting a ransom money note that states the need for the targets to impact the repayment for the purpose of decrypting the papers or restoring the documents system back to the preliminary condition. In the majority of circumstances, the ransom note will certainly turn up when the customer restarts the COMPUTER after the system has actually currently been damaged.

MSIL/TrojanClicker.Agent.NAF distribution channels.

In various corners of the world, MSIL/TrojanClicker.Agent.NAF grows by leaps as well as bounds. Nevertheless, the ransom money notes as well as tricks of extorting the ransom amount might differ depending on particular local (local) settings. The ransom money notes and techniques of obtaining the ransom amount may differ depending on certain neighborhood (local) setups.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software application.

    In particular areas, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the victim’s tool. The alert after that demands the user to pay the ransom.

    Faulty declarations concerning unlawful web content.

    In nations where software piracy is much less preferred, this approach is not as reliable for the cyber frauds. Conversely, the MSIL/TrojanClicker.Agent.NAF popup alert may falsely claim to be originating from a law enforcement establishment and will report having situated youngster porn or other prohibited data on the gadget.

    MSIL/TrojanClicker.Agent.NAF popup alert may incorrectly declare to be acquiring from a law enforcement organization as well as will certainly report having located kid porn or other illegal information on the tool. The alert will in a similar way have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 4A5D4F5E
md5: a54cebcacc046b525cc3a6f865a1d533
name: A54CEBCACC046B525CC3A6F865A1D533.mlw
sha1: ee416ef1e369ee11365d0a4f042cf1a2024b5384
sha256: fa531dd9a40600413d2545d51d92b04d72be59eedfc998c413b7c3bcf4de4be6
sha512: fd3995d20295482de4022935a2b65eff4f2cd1cf6b959e5561f8ec3090556880ab597ed930b79eb372f9a3a3ad0b59cf1e6f394cb25434a4b14e93007756ca6b
ssdeep: 1536:CWgPR+wa9VT0YRPeDk69la9VT0YRPeDk69:CHRmVpV
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2012 Microsoft Corporation
Assembly Version:
InternalName: Windows(R) Firewall.exe
CompanyName: Microsoft Corporation
LegalTrademarks: Microsoft Corporation xa9
ProductName: Intel(R) Utility
FileDescription: Windows(R) Firewall
OriginalFilename: Windows(R) Firewall.exe

MSIL/TrojanClicker.Agent.NAF also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 700000121 )
Elastic malicious (high confidence)
Cynet Malicious (score: 90)
ALYac Gen:Variant.MSILPerseus.196395
Zillya Downloader.Dapato.Win32.3599
Sangfor Trojan.Win32.Clicker-Agent.8
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Starter.ali2000005
K7GW Trojan ( 700000121 )
Cybereason malicious.acc046
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/TrojanClicker.Agent.NAF
APEX Malicious
Avast MSIL:Downloader-FW [Trj]
Kaspersky Trojan-Ransom.Win32.Blocker.kdwf
BitDefender Gen:Variant.MSILPerseus.196395
NANO-Antivirus Trojan.Win32.Blocker.eqmkmx
MicroWorld-eScan Gen:Variant.MSILPerseus.196395
Tencent Win32.Trojan.Blocker.Lkxg
Ad-Aware Gen:Variant.MSILPerseus.196395
Sophos Mal/Generic-S
BitDefenderTheta Gen:NN.ZemsilF.34670.jm3@ayt72Hi
VIPRE Trojan.Win32.Generic.pak!cobra
TrendMicro Ransom_Blocker.R002C0WAT21
McAfee-GW-Edition BehavesLike.Win32.Trojan.ct
Emsisoft Malware.Generic.CN1 (A)
Jiangmin TrojanDownloader.Dapato.axw
Avira HEUR/AGEN.1124399
eGambit Generic.Downloader
Microsoft Backdoor:Win32/Bladabindi!ml
GData Gen:Variant.MSILPerseus.196395
McAfee Artemis!A54CEBCACC04
MAX malware (ai score=84)
VBA32 TScope.Trojan.MSIL
Panda Generic Malware
TrendMicro-HouseCall Ransom_Blocker.R002C0WAT21
Rising Ransom.Blocker!8.12A (CLOUD)
SentinelOne Static AI – Malicious PE
Fortinet MSIL/TrojanClicker_Agent.NAF!tr
AVG MSIL:Downloader-FW [Trj]
Qihoo-360 Win32/Ransom.Blocker.HgIASRMA

How to remove MSIL/TrojanClicker.Agent.NAF 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 MSIL/TrojanClicker.Agent.NAF 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 MSIL/TrojanClicker.Agent.NAF you can always ask me in the comments for getting help.

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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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