What is MSIL/TrojanDropper.Small.AN.Gen infection?

In this post you will find regarding the meaning of MSIL/TrojanDropper.Small.AN.Gen and also its negative impact on your computer system. Such ransomware are a form of malware that is elaborated by online fraudulences to demand paying the ransom money by a sufferer.

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Most of the cases, MSIL/TrojanDropper.Small.AN.Gen ransomware will instruct its sufferers to launch funds move for the function of neutralizing the modifications that the Trojan infection has actually presented to the victim’s device.

MSIL/TrojanDropper.Small.AN.Gen Summary

These modifications can be as follows:

  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s hard disk — so the target can no more use the information;
  • Preventing routine accessibility to the victim’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 regular channels whereby MSIL/TrojanDropper.Small.AN.Gen Ransomware Trojans are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of user ending up on a source that hosts a destructive software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the sufferer’s PC or prevent the device from operating in a correct fashion – while also placing a ransom money note that discusses the need for the victims to impact the settlement for the purpose of decrypting the documents or restoring the file system back to the preliminary condition. In the majority of circumstances, the ransom note will show up when the customer reboots the PC after the system has actually already been harmed.

MSIL/TrojanDropper.Small.AN.Gen circulation networks.

In various corners of the world, MSIL/TrojanDropper.Small.AN.Gen grows by jumps and also bounds. Nevertheless, the ransom notes and techniques of obtaining the ransom quantity may differ depending on certain local (regional) settings. The ransom money notes as well as methods of extorting the ransom quantity may differ depending on particular regional (local) setups.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software program.

    In particular locations, the Trojans usually wrongfully report having actually spotted some unlicensed applications made it possible for on the target’s tool. The alert then demands the customer to pay the ransom.

    Faulty statements concerning prohibited web content.

    In countries where software piracy is much less preferred, this method is not as reliable for the cyber scams. Alternatively, the MSIL/TrojanDropper.Small.AN.Gen popup alert may incorrectly declare to be originating from a law enforcement institution and will report having situated youngster porn or various other illegal information on the tool.

    MSIL/TrojanDropper.Small.AN.Gen popup alert may incorrectly claim to be deriving from a legislation enforcement establishment and also will certainly report having situated youngster porn or various other prohibited data on the tool. The alert will likewise consist of a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: 96E16277
md5: f0a3ad23c9a3d5fd979035dc7dd9a27b
name: F0A3AD23C9A3D5FD979035DC7DD9A27B.mlw
sha1: 60aae51f7cf096d29d6d141eba10b18e4af35b10
sha256: 944d78bb55b210bb44242886508f77130cab6bf6b0c3f238afba3b3859261975
sha512: 1a65f93ff73d1699a80ddfa7c03e586efee10f578e5f00fb9bf2faebb61d0ecb0e4146b409510630ce483168d8db4ea1d7fbb4c8143032b77fa16d54236b9fe7
ssdeep: 3072:B4Kct9vDHTn9WOHI6Ow4fLOGT72oY/Ez4oBh92Ar3HhWHhrXuwob5WZnSGQyF:mDz9WO9OwQdHHHHQHhDpoR
type: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
Assembly Version:
InternalName: 4.exe
OriginalFilename: 4.exe

MSIL/TrojanDropper.Small.AN.Gen also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
Cynet Malicious (score: 90)
ALYac Gen:Heur.MSIL.Krypt.12
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Blocker.dd6dde21
K7GW Trojan ( 00459bda1 )
K7AntiVirus Trojan ( 00459bda1 )
Cyren W32/Trojan.DXV.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/TrojanDropper.Small.AN.Gen
APEX Malicious
Avast Win32:DropperX-gen [Drp]
Kaspersky Trojan-Ransom.Win32.Blocker.bznn
BitDefender Gen:Heur.MSIL.Krypt.12
NANO-Antivirus Trojan.Win32.Blocker.carsel
MicroWorld-eScan Gen:Heur.MSIL.Krypt.12
Tencent Win32.Trojan.Blocker.Ebzv
Ad-Aware Gen:Heur.MSIL.Krypt.12
Sophos Mal/Generic-S
Comodo Malware@#2ag55j9n0ha5i
BitDefenderTheta Gen:NN.ZemsilF.34628.lm0@aKgt8nf
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.ct
Emsisoft Gen:Heur.MSIL.Krypt.12 (B)
Avira HEUR/AGEN.1107339
eGambit Unsafe.AI_Score_62%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Ymacco.AA94
Arcabit Trojan.MSIL.Krypt.12
AegisLab Trojan.Win32.Blocker.j!c
GData Gen:Heur.MSIL.Krypt.12
McAfee Artemis!F0A3AD23C9A3
MAX malware (ai score=88)
VBA32 Hoax.Blocker
Panda Trj/CI.A
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.Blocker!mIdSbW/UXec
Ikarus Trojan-Dropper.MSIL.Small
MaxSecure Trojan.Malware.6239290.susgen
Fortinet W32/Blocker.BZNN!tr
AVG Win32:DropperX-gen [Drp]
Qihoo-360 Win32/Ransom.Blocker.HwMA9PcA

How to remove MSIL/TrojanDropper.Small.AN.Gen ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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/TrojanDropper.Small.AN.Gen 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove MSIL/TrojanDropper.Small.AN.Gen 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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