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

What is MSIL/TrojanDropper.Agent.BBY infection?

In this short article you will find regarding the interpretation of MSIL/TrojanDropper.Agent.BBY as well as its unfavorable influence on your computer system. Such ransomware are a type of malware that is specified by on the internet fraudulences to require paying the ransom money by a sufferer.

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In the majority of the cases, MSIL/TrojanDropper.Agent.BBY infection will advise its victims to initiate funds transfer for the objective of neutralizing the changes that the Trojan infection has presented to the target’s gadget.

MSIL/TrojanDropper.Agent.BBY Summary

These adjustments can be as follows:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Creates RWX memory;
  • Guard pages use detected – possible anti-debugging.;
  • Dynamic (imported) function loading detected;
  • Enumerates the modules from a process (may be used to locate base addresses in process injection);
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Anomalous .NET characteristics;
  • Ciphering the records located on the victim’s hard disk — so the target can no longer make use of the data;
  • Preventing normal accessibility to the target’s workstation;

Related domains:


One of the most common channels through which MSIL/TrojanDropper.Agent.BBY Ransomware are injected are:

  • By ways of phishing emails;
  • As a repercussion of user ending up on a resource that hosts a harmful software application;

As soon as the Trojan is efficiently infused, it will either cipher the data on the target’s PC or protect against the device from functioning in an appropriate fashion – while also placing a ransom money note that points out the demand for the sufferers to effect the payment for the purpose of decrypting the files or bring back the data system back to the initial condition. In the majority of instances, the ransom money note will certainly come up when the customer restarts the PC after the system has currently been harmed.

MSIL/TrojanDropper.Agent.BBY circulation channels.

In numerous edges of the world, MSIL/TrojanDropper.Agent.BBY expands by jumps and bounds. Nonetheless, the ransom money notes and also techniques of extorting the ransom money quantity might differ depending upon specific neighborhood (regional) settings. The ransom money notes and tricks of extorting the ransom amount may vary depending on particular neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software application.

    In particular areas, the Trojans often wrongfully report having discovered some unlicensed applications made it possible for on the victim’s tool. The alert then demands the customer to pay the ransom money.

    Faulty statements about prohibited content.

    In countries where software piracy is much less prominent, this approach is not as effective for the cyber fraudulences. Alternatively, the MSIL/TrojanDropper.Agent.BBY popup alert may wrongly assert to be originating from a police establishment and will certainly report having situated kid pornography or various other prohibited data on the device.

    MSIL/TrojanDropper.Agent.BBY popup alert may incorrectly claim to be acquiring from a law enforcement organization as well as will report having located child porn or other unlawful information on the device. The alert will likewise contain a need for the customer to pay the ransom.

Technical details

File Info:

name: 4D757E559545D827EACB.mlw
path: /opt/CAPEv2/storage/binaries/22e6cbc619e356fb65cda0438cc9ed3643913f2bb22298640ceb269888a2ac2f
crc32: 06CCDCD6
md5: 4d757e559545d827eacb1d3b2ef8197a
sha1: bbe6563793b54fd12160bee9a1949ddfef03ddc3
sha256: 22e6cbc619e356fb65cda0438cc9ed3643913f2bb22298640ceb269888a2ac2f
sha512: a53510d61edf9e7786c82db985455c09e92f9db13fe1891733dc7854dfbba26deff7f2fea3df3137dedf0992af112ccf6c62806bad9d35aa387469d9c4f3a965
ssdeep: 3072:Em8skcb+b6wsEkpis4Oa3c36/kUsL3P514NjBn0yXBX5AZpFOgi8Z9zPQEI6:EmiG+PSt4nc368z5yUyXBXKHEgf9tI6
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1AB448B6AFA53627BCE1D5232C4E048D846FDE44E9781E7DF5990D21839B36CC9CB20B6
sha3_384: c747d547afeb382965a8a005a40ec5ac7c870308313e1a4a3ec9bb77de86ed5d1cbb0eaf64a936101bd0b26b87e5c781
ep_bytes: ff250020400000000000000000000000
timestamp: 2014-08-15 07:53:53

Version Info:

Translation: 0x0000 0x04b0
InternalName: 11.exe
OriginalFilename: 11.exe
Assembly Version:

MSIL/TrojanDropper.Agent.BBY also known as:

Elasticmalicious (high confidence)
CrowdStrikewin/malicious_confidence_90% (W)
ESET-NOD32a variant of MSIL/TrojanDropper.Agent.BBY
AvastMSIL:GenMalicious-MG [Trj]
EmsisoftGen:Variant.Razy.651977 (B)
CynetMalicious (score: 100)
MAXmalware (ai score=82)
SentinelOneStatic AI – Malicious PE
AVGMSIL:GenMalicious-MG [Trj]

How to remove MSIL/TrojanDropper.Agent.BBY 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.BBY 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.Agent.BBY 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

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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