MSIL/TrojanDropper.Agent.BDM

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is MSIL/TrojanDropper.Agent.BDM infection?

In this short article you will certainly find about the meaning of MSIL/TrojanDropper.Agent.BDM as well as its negative impact on your computer. Such ransomware are a kind of malware that is specified by online frauds to require paying the ransom by a target.

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Most of the cases, MSIL/TrojanDropper.Agent.BDM infection will instruct its victims to launch funds move for the function of counteracting the modifications that the Trojan infection has presented to the target’s device.

MSIL/TrojanDropper.Agent.BDM Summary

These modifications 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Sniffs keystrokes;
  • A process was set to shut the system down when terminated;
  • 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
  • Likely virus infection of existing system binary;
  • Ciphering the files situated on the victim’s hard drive — so the victim can no more use the information;
  • Preventing regular 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.

MSIL/TrojanDropper.Agent.BDM

One of the most common networks whereby MSIL/TrojanDropper.Agent.BDM Ransomware are injected are:

  • By ways of phishing emails;
  • As a repercussion of customer ending up on a source that hosts a malicious software application;

As quickly as the Trojan is effectively injected, it will either cipher the data on the sufferer’s computer or stop the device from operating in a proper way – while additionally placing a ransom note that mentions the requirement for the sufferers to effect the payment for the objective of decrypting the records or restoring the documents system back to the preliminary problem. In most circumstances, the ransom money note will certainly come up when the customer reboots the COMPUTER after the system has currently been harmed.

MSIL/TrojanDropper.Agent.BDM circulation channels.

In various edges of the world, MSIL/TrojanDropper.Agent.BDM grows by leaps and bounds. However, the ransom money notes as well as tricks of obtaining the ransom amount might differ depending upon certain local (local) settings. The ransom notes and also tricks of extorting the ransom money quantity may differ depending on particular regional (local) settings.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software application.

    In particular locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications allowed on the sufferer’s gadget. The alert after that requires the individual to pay the ransom.

    Faulty declarations regarding unlawful web content.

    In countries where software piracy is less prominent, this method is not as efficient for the cyber fraudulences. Conversely, the MSIL/TrojanDropper.Agent.BDM popup alert might incorrectly claim to be deriving from a police establishment as well as will certainly report having situated youngster porn or various other illegal data on the gadget.

    MSIL/TrojanDropper.Agent.BDM popup alert may wrongly assert to be obtaining from a law enforcement establishment as well as will report having located kid pornography or various other illegal information on the gadget. The alert will in a similar way have a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 8F767CA2
md5: 748fa5f5f374369235dfb92ebf674143
name: 748FA5F5F374369235DFB92EBF674143.mlw
sha1: ffa98e86ef6a9c2985b4301853edb80a790d3080
sha256: 91dc0b77e77029bb1cb2d85285c6780b482a95c015d47a44d3cdb841d3199b3c
sha512: 301f4a7504b9809a2c072a5b012b51fb6b060814c4615fcb217045812f51073f89ef39c3238ae0e97d1d5bbd82704242ad22f7ce55a9f34b5e87975a0f3e3815
ssdeep: 6144:ipyEHUGtrr0Z+j4Tqy62LCnt2bT4UWq3J5zfRnOGVqFz7p/:mUGtr2qL2LCn8Ld55z53Vo7l
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2014
Assembly Version: 1.0.0.0
InternalName: medo esam2.exe
FileVersion: 1.0.0.0
ProductName: medo esam2
ProductVersion: 1.0.0.0
FileDescription: medo esam2
OriginalFilename: medo esam2.exe

MSIL/TrojanDropper.Agent.BDM also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0055e3de1 )
DrWeb Trojan.DownLoader9.26652
Cynet Malicious (score: 85)
McAfee Artemis!748FA5F5F374
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Ransom:Win32/Blocker.667a3a40
K7GW Trojan ( 0055e3de1 )
Cybereason malicious.5f3743
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/TrojanDropper.Agent.BDM
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.gavm
BitDefender Trojan.GenericKD.34984871
NANO-Antivirus Trojan.Win32.Blocker.diyazn
MicroWorld-eScan Trojan.GenericKD.34984871
Tencent Win32.Trojan.Blocker.Ahfb
Ad-Aware Trojan.GenericKD.34984871
Sophos Mal/Generic-S
BitDefenderTheta Gen:NN.ZemsilF.34628.pm0@aiTIl4o
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Artemis!Trojan
FireEye Trojan.GenericKD.34984871
Emsisoft Trojan.GenericKD.34984871 (B)
Jiangmin Trojan.Blocker.imn
Avira HEUR/AGEN.1101888
eGambit Unsafe.AI_Score_99%
Microsoft Backdoor:MSIL/Bladabindi
Arcabit Trojan.Generic.D215D3A7
AegisLab Trojan.Win32.Blocker.j!c
GData Trojan.GenericKD.34984871
AhnLab-V3 Trojan/Win32.Bladabindi.C2202328
MAX malware (ai score=99)
Panda Trj/CI.A
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.Blocker!WsdCZUP31RI
Ikarus Trojan.Win32.Pakes
Fortinet W32/Blocker.BDM!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HgIASOgA

How to remove MSIL/TrojanDropper.Agent.BDM 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/TrojanDropper.Agent.BDM 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.BDM 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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