MSIL/TrojanDropper.Agent.AEV

What is MSIL/TrojanDropper.Agent.AEV infection?

In this article you will certainly find about the meaning of MSIL/TrojanDropper.Agent.AEV and also its negative impact on your computer system. Such ransomware are a type of malware that is clarified by on the internet fraudulences to demand paying the ransom money by a target.

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Most of the situations, MSIL/TrojanDropper.Agent.AEV virus will advise its victims to start funds move for the objective of neutralizing the amendments that the Trojan infection has actually introduced to the victim’s gadget.

MSIL/TrojanDropper.Agent.AEV Summary

These alterations can be as follows:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • 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.
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Uses Windows utilities for basic functionality;
  • Sniffs keystrokes;
  • 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
  • Ciphering the records found on the victim’s hard disk drive — so the sufferer can no longer use the data;
  • Preventing normal access 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.

MSIL/TrojanDropper.Agent.AEV

One of the most typical networks through which MSIL/TrojanDropper.Agent.AEV 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 consequence of customer ending up on a source that hosts a malicious software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s PC or stop the device from functioning in a correct way – while additionally placing a ransom note that discusses the requirement for the sufferers to impact the settlement for the purpose of decrypting the files or bring back the documents system back to the initial problem. In the majority of instances, the ransom note will come up when the customer restarts the COMPUTER after the system has actually currently been damaged.

MSIL/TrojanDropper.Agent.AEV distribution networks.

In different corners of the globe, MSIL/TrojanDropper.Agent.AEV grows by jumps and also bounds. However, the ransom money notes as well as methods of obtaining the ransom money amount may differ depending upon certain local (regional) setups. The ransom notes as well as techniques of obtaining the ransom amount might differ depending on specific local (local) setups.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software application.

    In specific areas, the Trojans commonly wrongfully report having actually discovered some unlicensed applications enabled on the target’s device. The sharp then requires the individual to pay the ransom.

    Faulty declarations regarding prohibited content.

    In nations where software piracy is less prominent, this approach is not as efficient for the cyber scams. Alternatively, the MSIL/TrojanDropper.Agent.AEV popup alert may falsely declare to be stemming from a police institution as well as will report having situated kid pornography or other prohibited data on the gadget.

    MSIL/TrojanDropper.Agent.AEV popup alert might wrongly assert to be acquiring from a legislation enforcement organization and also will report having located youngster porn or various other prohibited data on the device. The alert will similarly consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: B21CFC83
md5: f1596e522f5575301985720ce5d2fb20
name: F1596E522F5575301985720CE5D2FB20.mlw
sha1: 5ac4b555e55ece4500851c9c43d381626029c911
sha256: 74cea4c13dd7bfd5f395e93f3c05b962188f1185a1d8c919fe66b562419ac422
sha512: 04527fc276fc0222f263596d955602940750e3818c0d952c2f26fe203ddd4510989bb175f738587153ca928db771d4fe1c600cc1aba1046de5e4e4dbda756c56
ssdeep: 6144:oUN2esf+BMHlSY9BobC58NUv3zyITWl70r5gn2r:7N2esmmHlS1kz3eIA0VgG
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

MSIL/TrojanDropper.Agent.AEV also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 700000121 )
Elastic malicious (high confidence)
DrWeb BackDoor.Bladabindi.892
Cynet Malicious (score: 85)
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
K7GW Trojan ( 700000121 )
Cybereason malicious.5e55ec
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/TrojanDropper.Agent.AEV
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Dropper.Generic-6503446-0
Kaspersky Trojan-Ransom.Win32.Blocker.gelv
NANO-Antivirus Trojan.Win32.Blocker.dlchib
Tencent Win32.Trojan.Blocker.Eamr
Sophos Mal/Generic-S
Comodo Malware@#2r86z1l85wgig
BitDefenderTheta Gen:NN.ZemsilF.34670.xm0@amSOk0d
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition GenericRXAK-ME!F1596E522F55
FireEye Generic.mg.f1596e522f557530
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1100375
eGambit Unsafe.AI_Score_100%
Microsoft Backdoor:MSIL/Bladabindi
McAfee GenericRXAK-ME!F1596E522F55
VBA32 Hoax.Blocker
Panda Trj/CI.A
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.Blocker!FMpwWvaQyJU
Ikarus Trojan.Msil
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 HEUR/QVM03.0.Malware.Gen

How to remove MSIL/TrojanDropper.Agent.AEV ransomware?

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/TrojanDropper.Agent.AEV 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/TrojanDropper.Agent.AEV you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/products/

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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