VirTool:MSIL/Subti.C

What is VirTool:MSIL/Subti.C infection?

In this short article you will certainly locate concerning the definition of VirTool:MSIL/Subti.C and also its negative impact on your computer. Such ransomware are a type of malware that is clarified by on-line fraudulences to require paying the ransom money by a victim.

In the majority of the situations, VirTool:MSIL/Subti.C infection 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 device.

VirTool:MSIL/Subti.C Summary

These modifications 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.
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Exhibits behavior characteristic of iSpy Keylogger;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Ciphering the papers situated on the target’s hard disk — so the victim can no more utilize the data;
  • Preventing regular accessibility to the target’s workstation;

VirTool:MSIL/Subti.C

One of the most typical networks through which VirTool:MSIL/Subti.C are injected are:

  • By means of phishing emails;
  • As an effect of user winding up on a source that holds a destructive software;

As quickly as the Trojan is successfully injected, it will either cipher the information on the target’s computer or protect against the device from operating in a proper manner – while additionally placing a ransom money note that mentions the demand for the targets to effect the payment for the purpose of decrypting the records or bring back the file system back to the preliminary condition. In a lot of circumstances, the ransom note will show up when the client restarts the PC after the system has already been damaged.

VirTool:MSIL/Subti.C distribution networks.

In numerous edges of the globe, VirTool:MSIL/Subti.C expands by leaps and bounds. Nonetheless, the ransom notes as well as tricks of extorting the ransom money quantity may differ depending upon particular regional (local) setups. The ransom notes and also methods of extorting the ransom money quantity may vary depending on particular regional (local) settings.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having actually discovered some unlicensed applications made it possible for on the sufferer’s device. The alert after that demands the customer to pay the ransom.

    Faulty statements concerning illegal content.

    In nations where software application piracy is much less preferred, this approach is not as reliable for the cyber fraudulences. Additionally, the VirTool:MSIL/Subti.C popup alert may wrongly declare to be originating from a law enforcement organization and will certainly report having situated youngster porn or other prohibited data on the gadget.

    VirTool:MSIL/Subti.C popup alert may incorrectly assert to be obtaining from a law enforcement organization as well as will report having located child pornography or other unlawful information on the tool. The alert will likewise have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 60162F55md5: f25c0151004a4ff7a92a79b663806428name: F25C0151004A4FF7A92A79B663806428.mlwsha1: dea79e1807454a19ddd7d66ac92c8d241a56635bsha256: 17aca00b1bb9173cd0139cf2956ea09793c9d2cf35334511e78ef6476325ed9asha512: 7783688c6e29cd59367ae2632994e3f04b24a60591c1029d44494dcc9bd69e6306780952889836513bed454956ae966f5d993f5c6a628b0b691101a3de7b4d0fssdeep: 12288:38dv2vmUohznX1fuYJcXfluF6WspHIQvBYZihm3DeEujIkxK:38dv2+HznXtwXNursFXMCmzeECEtype: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

VirTool:MSIL/Subti.C also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Gen:Variant.MSILPerseus.137684
FireEye Generic.mg.f25c0151004a4ff7
Qihoo-360 Win32/Ransom.Blocker.HgIASOMA
ALYac Gen:Variant.MSILPerseus.137684
Cylance Unsafe
AegisLab Trojan.Multi.Generic.4!c
Sangfor Trojan.Win32.Save.a
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Gen:Variant.MSILPerseus.137684
K7GW Riskware ( 0040eff71 )
Cybereason malicious.1004a4
BitDefenderTheta Gen:NN.ZemsilF.34590.Jm0@a4N4Xlb
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.kljf
Alibaba Ransom:Win32/Blocker.c159d5df
NANO-Antivirus Trojan.Win32.Blocker.euyajd
Rising Ransom.Blocker!8.12A (CLOUD)
Ad-Aware Gen:Variant.MSILPerseus.137684
Emsisoft Gen:Variant.MSILPerseus.137684 (B)
Comodo Malware@#313kgj8v7bv6l
F-Secure Trojan.TR/Dropper.MSIL.vnqfq
DrWeb Trojan.DownLoader25.54695
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.hc
Sophos Mal/Generic-S
Jiangmin Trojan.Blocker.nzj
Avira TR/Dropper.MSIL.vnqfq
MAX malware (ai score=80)
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Microsoft VirTool:MSIL/Subti.C
Arcabit Trojan.MSILPerseus.D219D4
ZoneAlarm Trojan-Ransom.Win32.Blocker.kljf
GData Gen:Variant.MSILPerseus.137684
Cynet Malicious (score: 90)
McAfee Artemis!F25C0151004A
VBA32 Trojan-Ransom.Blocker
Malwarebytes Generic.Malware/Suspicious
Panda Trj/GdSda.A
Tencent Win32.Trojan.Blocker.Eawq
Yandex Trojan.Blocker!iaTs/7eqz2M
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Blocker.KLJF!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove VirTool:MSIL/Subti.C ransomware?

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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove VirTool:MSIL/Subti.C you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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