Written by Robert Bailey

What is MSIL/Agent.CAA infection?

In this post you will certainly locate about the definition of MSIL/Agent.CAA and also its negative effect on your computer system. Such ransomware are a form of malware that is clarified by online frauds to demand paying the ransom by a target.

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It is better to prevent, than repair and repent!

When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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In the majority of the cases, MSIL/Agent.CAA virus will instruct its targets to initiate funds transfer for the purpose of counteracting the amendments that the Trojan infection has actually presented to the target’s gadget.

MSIL/Agent.CAA Summary

These modifications can be as adheres to:

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the victim’s hard disk drive — so the sufferer can no more utilize the information;
  • Preventing routine 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.


The most regular channels through which MSIL/Agent.CAA are infused are:

  • By ways of phishing e-mails;
  • As an effect of customer winding up on a resource that hosts a harmful software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s PC or avoid the device from operating in a correct way – while also putting a ransom money note that points out the need for the sufferers to impact the payment for the objective of decrypting the records or bring back the data system back to the preliminary problem. In a lot of circumstances, the ransom note will show up when the client restarts the PC after the system has actually already been harmed.

MSIL/Agent.CAA distribution channels.

In different corners of the world, MSIL/Agent.CAA expands by jumps and bounds. Nevertheless, the ransom notes as well as tricks of extorting the ransom money amount might vary relying on specific regional (regional) settings. The ransom money notes as well as methods of extorting the ransom money quantity may vary depending on particular local (local) setups.

Ransomware injection

For example:

    Faulty notifies concerning unlicensed software.

    In particular locations, the Trojans often wrongfully report having actually discovered some unlicensed applications made it possible for on the target’s gadget. The sharp after that requires the customer to pay the ransom money.

    Faulty declarations about illegal web content.

    In nations where software application piracy is less popular, this technique is not as reliable for the cyber scams. Additionally, the MSIL/Agent.CAA popup alert might wrongly assert to be stemming from a police institution as well as will certainly report having located child pornography or other illegal information on the device.

    MSIL/Agent.CAA popup alert might falsely claim to be obtaining from a regulation enforcement institution and also will certainly report having located youngster porn or other prohibited data on the device. The alert will likewise contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 98120033
md5: 75aa68efb0caa5d4be4b22a1350e6765
name: 75AA68EFB0CAA5D4BE4B22A1350E6765.mlw
sha1: 2567fc2092b9d2fc13b1f3b93c085f531614f4e9
sha256: 1e201212f81c0e9596ae67415bfd916d961caa553b99020cb377c58f5329a249
sha512: 92020899bffaba87901c6561dd420f4181ca16f059e081f1d900c879bd076999c20c7ba6b140e1960ca088c540bfa9292f8f5a94df2c5468d9941a1e1eb89311
ssdeep: 6144:tSHhHXGpxqmxgmaGo14SwbOdj7AmF1awG7g4ehRZbqAOvu/aWECH7ttiyxUrX6s:RpxJgmVSwbOR4ehRZbqAOvu/aWECH7t
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2019
Assembly Version:
InternalName: VanillaStub.exe
ProductName: VanillaStub
FileDescription: VanillaStub
OriginalFilename: VanillaStub.exe

MSIL/Agent.CAA also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.YakbeexMSIL.ZZ4
ALYac Gen:Variant.Razy.836247
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Cybereason malicious.fb0caa
Cyren W32/MSIL_Troj.NT.gen!Eldorado
ESET-NOD32 a variant of MSIL/Agent.CAA
APEX Malicious
Avast Win32:RATX-gen [Trj]
BitDefender Gen:Variant.Razy.836247
MicroWorld-eScan Gen:Variant.Razy.836247
Ad-Aware Gen:Variant.Razy.836247
Sophos ML/PE-A
BitDefenderTheta Gen:NN.ZemsilF.34608.uu0@aKDvbti
McAfee-GW-Edition BehavesLike.Win32.Generic.fh
Emsisoft Gen:Variant.Razy.836247 (B)
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_81%
Microsoft Trojan:Win32/Laqma
Gridinsoft Ransom.Win32.Blocker.dd!n
Arcabit Trojan.Razy.DCC297
GData Gen:Variant.Razy.836247
AhnLab-V3 Malware/Win32.RL_Generic.C4074175
MAX malware (ai score=84)
Malwarebytes Malware.Heuristic.1003
Yandex Trojan.AvsArher.bUx2VN
MaxSecure Trojan.Malware.300983.susgen
AVG Win32:RATX-gen [Trj]
Qihoo-360 HEUR/QVM03.0.EC1B.Malware.Gen

How to remove MSIL/Agent.CAA virus?

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/Agent.CAA 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/Agent.CAA 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

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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