MSIL/Agent.HD
Sarah Oconnell
Updated on February 21, 2026
What is MSIL/Agent.HD infection?
In this post you will discover concerning the definition of MSIL/Agent.HD and also its adverse impact on your computer. Such ransomware are a type of malware that is clarified by online frauds to require paying the ransom by a sufferer.
Most of the instances, MSIL/Agent.HD virus will certainly advise its victims to initiate funds move for the purpose of neutralizing the changes that the Trojan infection has introduced to the target’s tool.
MSIL/Agent.HD Summary
These adjustments can be as complies with:
- 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.
- A process attempted to delay the analysis task.;
- Checks the CPU name from registry, possibly for anti-virtualization;
- Creates a copy of itself;
- Ciphering the records found on the target’s disk drive — so the victim can no longer make use of the data;
- Preventing normal accessibility 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/Agent.HD
One of the most normal networks where MSIL/Agent.HD Ransomware are infused are:
- By methods of phishing emails;
- As a consequence of user ending up on a resource that hosts a malicious software application;
As soon as the Trojan is successfully infused, it will either cipher the information on the target’s PC or avoid the tool from working in an appropriate way – while also putting a ransom note that points out the demand for the targets to impact the settlement for the objective of decrypting the documents or bring back the documents system back to the preliminary condition. In many circumstances, the ransom note will turn up when the customer reboots the PC after the system has already been damaged.
MSIL/Agent.HD circulation networks.
In numerous edges of the globe, MSIL/Agent.HD grows by leaps and bounds. Nevertheless, the ransom money notes as well as techniques of extorting the ransom quantity might differ depending upon specific local (local) setups. The ransom notes and also tricks of extorting the ransom money quantity may differ depending on specific regional (local) setups.
For example:
Faulty signals about unlicensed software program.
In certain areas, the Trojans often wrongfully report having spotted some unlicensed applications enabled on the target’s device. The alert after that demands the user to pay the ransom.
Faulty statements concerning illegal material.
In nations where software application piracy is much less popular, this technique is not as reliable for the cyber fraudulences. Alternatively, the MSIL/Agent.HD popup alert might wrongly declare to be deriving from a law enforcement institution and also will report having situated child porn or various other prohibited information on the gadget.
MSIL/Agent.HD popup alert may incorrectly declare to be obtaining from a regulation enforcement establishment as well as will report having located kid pornography or various other prohibited information on the gadget. The alert will likewise consist of a need for the user to pay the ransom.
Technical details
File Info:
crc32: F1BA9C95md5: 539c8929033047a2390f3f553dd028a9name: 539C8929033047A2390F3F553DD028A9.mlwsha1: d375a3e62c1220f9e33011044abd80aa7b22abecsha256: 8e4da1a822accdbd6e39cc239d48581c96607925318d8b5e0d4615e241ed9169sha512: 0c2011b7f537a31efa984d6c7c16d6762707707a25b8a05494a1cdf6353b9d3fe98597273b8b04a4fa66f8398675ad61855fd8fce6137db4ab8a87027c3b97d0ssdeep: 1536:i2BsIXj+GeG3Th9D9+1WxM7T5yJJo6CEVQMIA7ivi:HmIz+GF22YT5yXxVjF7eitype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS WindowsVersion Info:
Translation: 0x0000 0x04b0LegalCopyright: Assembly Version: 0.0.0.0InternalName: server.exeFileVersion: 0.0.0.0ProductVersion: 0.0.0.0FileDescription: OriginalFilename: server.exe
MSIL/Agent.HD also known as:
| GridinSoft | Trojan.Ransom.Gen |
| K7AntiVirus | Trojan ( 0042eefe1 ) |
| Elastic | malicious (high confidence) |
| DrWeb | Trojan.Siggen4.30538 |
| ClamAV | Win.Trojan.Chabava-1 |
| McAfee | Artemis!539C89290330 |
| Malwarebytes | Backdoor.Bladabindi.MSIL |
| Zillya | Trojan.Blocker.Win32.62888 |
| Sangfor | Trojan.Win32.Save.a |
| CrowdStrike | win/malicious_confidence_100% (W) |
| Alibaba | Ransom:Win32/Blocker.832c1188 |
| K7GW | Trojan ( 0042eefe1 ) |
| Cybereason | malicious.903304 |
| Cyren | W32/MSIL_Troj.FT.gen!Eldorado |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | a variant of MSIL/Agent.HD |
| APEX | Malicious |
| Avast | Win32:Malware-gen |
| Cynet | Malicious (score: 100) |
| Kaspersky | Trojan-Ransom.Win32.Blocker.kjju |
| BitDefender | Gen:Heur.MSIL.Bladabindi.1 |
| NANO-Antivirus | Trojan.Win32.TrjGen.bajryl |
| MicroWorld-eScan | Gen:Heur.MSIL.Bladabindi.1 |
| Tencent | Win32.Trojan.Blocker.Svhs |
| Ad-Aware | Gen:Heur.MSIL.Bladabindi.1 |
| Sophos | Mal/Generic-S |
| Comodo | Malware@#nsqb3aq6ryrn |
| BitDefenderTheta | Gen:NN.ZemsilF.34608.dm0@aGVQQvn |
| VIPRE | Trojan.Win32.Generic!BT |
| McAfee-GW-Edition | BehavesLike.Win32.Generic.qh |
| FireEye | Generic.mg.539c8929033047a2 |
| Emsisoft | Gen:Heur.MSIL.Bladabindi.1 (B) |
| SentinelOne | Static AI – Malicious PE |
| Webroot | W32.Malware.Heur |
| Avira | TR/ATRAPS.Gen |
| eGambit | Unsafe.AI_Score_99% |
| Antiy-AVL | Trojan/Win32.AGeneric |
| Kingsoft | Win32.Troj.Dapato.(kcloud) |
| Microsoft | Backdoor:Win32/Bladabindi!ml |
| Arcabit | Trojan.MSIL.Bladabindi.1 |
| AegisLab | Trojan.Win32.Dapato.b!c |
| ZoneAlarm | Trojan-Ransom.Win32.Blocker.kjju |
| GData | Gen:Heur.MSIL.Bladabindi.1 |
| Acronis | suspicious |
| MAX | malware (ai score=86) |
| Rising | Ransom.Blocker!8.12A (CLOUD) |
| Ikarus | Trojan-Dropper.MSIL |
| MaxSecure | Trojan.Malware.300983.susgen |
| Fortinet | W32/Dapato.BTVL!tr |
| AVG | Win32:Malware-gen |
| Paloalto | generic.ml |
| Qihoo-360 | Win32/Ransom.Blocker.HwMAAh8C |
How to remove MSIL/Agent.HD ransomware?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for MSIL/Agent.HD 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove MSIL/Agent.HD you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
